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The table below is a reverse chronological list of video clips as they were added to the site:
| Clip no, & still image |
Connection speed |
Description of video clip |
Curriculum link |
103. |
Select speed: Dial-up Broadband |
Model rockets using solid rocket fuel at a Physics Starchaser day held at Great Sankey, involving students from several schools in Warrington. Convened by Mr Brindle, Head of Physics at Great Sankey. Why does the acceleration of a rocket keep on increasing as the rocket motor fires? | Link: Year 7 Forces |
102. |
Select speed: Dial-up Broadband |
Gunpowder experiment at Science club. What is the key ingredient that made this mixture ignite so spectacularly? | Link: Year 7 Chemical Reactions |
101. |
Select speed: Dial-up Broadband |
A near-collision during a sledging run. A fresh fall of snow gives a welcome playground for friction experiments! Plastic runners on an old toboggan help to reduce friction. But high speeds are only achieved on compacted, icy snow. | Link: Year 9 Speeding Up |
100. |
Select speed: Dial-up Broadband |
Compressed-air-powered water-rocket used to test reaction time: A volunteer sits close to a water rocket held securely in a lab clamp. Filmed at 30 frames per second, the first human reaction occurs after 3 frames, or one-tenth of a second (0.1s). | Link: Year 9 Speeding Up |
99.
 |
Select speed: Dial-up Broadband |
Compressed-air-powered water-rocket used to test reaction time: A volunteer sits close to a water rocket held securely in a lab clamp. Filmed at 30 frames per second, the first human reaction occurs after 3 frames, or one-tenth of a second (0.1s). | Link: Year 9 Speeding Up |
98.
 |
Select speed: Dial-up Broadband |
Compressed-air-powered water-rocket used to test reaction time: A volunteer sits close to a water rocket held securely in a lab clamp. Filmed at 30 frames per second, the first human reaction occurs after 6 frames, or one-fifth of a second (0.2s). | Link: Year 9 Speeding Up |
97.
 |
Select speed: Dial-up Broadband |
Hot air balloon made from Aluminised Mylar, sellotape and a piece of copper wire. The previous, commercially purchased balloon, had been damaged by long-term storage in a damp environment leading to flaking of the aluminised layer. This led to problems with poor heat retention inside the balloon envelope. | Link: Year 10 Energy in the Home |
96.
 |
Select speed: Dial-up Broadband |
Fire Extinguisher made from Sodium Hydrogen Carbonate and
Sodium Sulphate dissolved in water Science Club: a vigorous reaction releases large amounts of Carbon Dioxide |
Link: Simple chemical reactions |
95.
 |
Select speed: Dial-up Broadband |
Fire Extinguisher made from Sodium Hydrogen Carbonate and
Sodium Sulphate dissolved in water Science Club: a vigorous reaction releases large amounts of Carbon Dioxide |
Link: Simple chemical reactions |
94.
 |
Select speed: Dial-up Broadband |
Fire Extinguisher made from Sodium Hydrogen Carbonate and
Sodium Sulphate dissolved in water Science Club: a vigorous reaction releases large amounts of Carbon Dioxide |
Link: Simple chemical reactions |
93.
 |
Select speed: Dial-up Broadband |
Fire Extinguisher made from Sodium Hydrogen Carbonate and
Sodium Sulphate dissolved in water Science Club: a vigorous reaction releases large amounts of Carbon Dioxide |
Link: Simple chemical reactions |
92.
 |
Select speed: Dial-up Broadband |
Compressed-air-powered water rocket using a 3 litre
bottle Filmed at 30 frames per second using a Panasonic Lumix DMC-FZ5. Flight duration 4.4s. Camera TL. |
Links: Y10 Physics, Forces and Motion |
91.
 |
Select speed: Dial-up Broadband |
Compressed-air-powered water rocket using a 3 litre
bottle Filmed at 30 frames per second using a Panasonic Lumix DMC-FZ5. Bottle too full? Or maybe the lack of streamlining slowed the rocket too much. |
Links: Y10 Physics, Forces and Motion |
90.
 |
Select speed: Dial-up Broadband |
Compressed-air-powered water rocket using a 2 litre
bottle Filmed at 30 frames per second using a Panasonic Lumix DMC-FZ5. Bottle too full? |
Links: Y10 Physics, Forces and Motion |
89.
 |
Select speed: Dial-up Broadband |
Compressed-air-powered water rocket using a 0.3 litre
bottle Filmed at 15 frames per second using a Nikon CoolPix 5400 (same launch as Clip 88). The tiny bottle is incredibly light, but also does not have much fuel: Flight duration 4s. Launch velocity approx 20m/s. Maximum height 20m. |
Links: Y10 Physics, Forces and Motion |
88.
 |
Select speed: Dial-up Broadband |
Compressed-air-powered water rocket using a 0.3 litre
bottle Filmed at 30 frames per second using a Panasonic Lumix DMC-FZ5 (same flight as Clip 89). Flight duration 4s. Launch velocity approx 20m/s. Maximum height 20m. |
Links: Y10 Physics, Forces and Motion |
87.
 |
Select speed: Dial-up Broadband |
An old toy hot-air balloon, launched on a cold winter's day. On-board fuel source was an ethanol-soaked piece of cotton wool. The aluminised mylar forming the canopy had started to lose its mylar, leading to reduced reflectivity and poor heat retention. With a small breeze, the balloon cools down too quickly, and the flight ends early. | Links: Y10 Physics, Forces and Motion |
86.
 |
Select speed: Dial-up Broadband |
Compressed-air-powered water rocket using a quarter-full 0.5 litre
bottle Filmed at 15 frames per second using a Nikon CoolPix 5400 (same launch as Clip 85). Launch acceleration is clearly much higher than the fuller bottle. Flight duration 5s. Launch velocity approx 24.5m/s. Maximum height approx 30.6 metres. |
Links: Y10 Physics, Forces and Motion |
85.
 |
Select speed: Dial-up Broadband |
Compressed-air-powered water rocket using a quarter-full 0.5 litre
bottle Filmed at 30 frames per second using a Panasonic Lumix DMC-FZ5 (same flight as Clip 86).. Launch acceleration is clearly much higher than the fuller bottle. Flight duration 5s. Launch velocity approx 24.5m/s. Maximum height approx 30.6 metres. |
Links: Y10 Physics, Forces and Motion |
84.
 |
Select speed: Dial-up Broadband |
Compressed air-powered water rocket using a three-quarters full 0.5 litre bottle. Filmed at 15 frames per second using a Nikon CoolPix 5400 (same launch as Clip 83). Flight duration 1.7s. Launch velocity approx 17m/s. Max height approx 14m. Rocket too heavy and not enough air! Not all the water ejected by end of flight. | Links: Y10 Physics, Forces and Motion |
83.
 |
Select speed: Dial-up Broadband |
Compressed air-powered water rocket using a three-quarters full 0.5 litre bottle. Filmed at 30 frames per second using a Panasonic Lumix DMC-FZ5 (same launch as Clip 84). Flight duration 1.7s. Launch velocity approx 17m/s. Maximum height approx 14m. Rocket too heavy and not enough air! | Links: Y10 Physics, Forces and Motion |
82.
 |
Select speed: Dial-up Broadband |
Squishy toy demonstrating centripetal force | Links: Year 11 Earth and Space |
81.
 |
Select speed: Dial-up Broadband |
Marge Simpson's hair - in Methane filled bubbles!
Camera NT. Why do the bubbles rise up so dramatically on igniting? Don't try this at home! |
Links: Y10 Physics, Energy in the Home |
80.
 |
Select speed: Dial-up Broadband |
Marge Simpson's hair
- in Methane filled bubbles!
Camera NT. Why do the bubbles rise up so dramatically on igniting? Don't try this at home! |
Links: Y10 Physics, Energy in the Home |
79.
 |
Select speed: Dial-up Broadband |
Squishy toy demonstrating centripetal force | Links: Year 11 Earth and Space |
78.
 |
Select speed: Dial-up Mid-band Broadband |
Squishy toy demonstrating centripetal force | Links: Year 11 Earth and Space |
77.
 |
Select speed: Dial-up Mid-band Broadband |
Liquid Nitrogen freezing a flower. What substance in the flower makes it go so crispy in the presence of liquid nitrogen? Why does the student not get injured by touching the frozen flower? Thanks to Mr M of Daresbury Labs for doing the demonstration at Science Club | Links: 8I Heating and Cooling |
76.
 |
Select speed: Dial-up Mid-band Broadband |
Liquid Nitrogen freezing a flower. Thanks to Mr M of Daresbury Labs for doing the demonstration at Science Club | Links: 8I Heating and Cooling |
75.
 |
Select speed: Dial-up Mid-band Broadband |
Liquid Nitrogen can crush and blow up a balloon. Why? How can you explain this using ideas about particles and atmospheric pressure? Thanks to Mr M of Daresbury Labs for doing the demonstration at Science Club | Links: 8I Heating and Cooling |
74.
 |
Select speed: Dial-up Mid-band Broadband |
Liquid Nitrogen poured onto a lab bench. Why does it clean the desk so well? Why does it clump into balls? Why does it stay on the bench and not rise up? Thanks to Mr M of Daresbury Labs for doing the demonstration at Science Club | Links: 8I Heating and Cooling |
73.
 |
Select speed: Dial-up Mid-band Broadband |
Liquid Nitrogen in a Pringle tube. The top blows off almost instantaneously - why? Thanks to Mr M of Daresbury Labs for doing the demonstration at Science Club | Links: 8I Heating and Cooling |
72.
 |
Select speed: Dial-up Mid-band Broadband |
Liquid Nitrogen heated by cold water, boiling off and supporting a ball! Nitrogen boils at -195.79 °C. So cold water at 15°C is over 200°C hotter than then nitrogen. No wonder it boils off and spews out of the pop bottle at high speed. The plastic ball is held in the Nitrogen gas stream by pressure effects. | Links: 8I Heating and Cooling |
71.
 |
Select speed: Dial-up Mid-band Broadband |
Concave mirror allows you to shake hands with yourself! | Links: Y10 GNVQ Optical Instruments |
70.
 |
Select speed: Dial-up Mid-band Broadband |
Large plasma sphere discharging onto someone's face and hands! With several thousand volts of potential difference between the terminal in the centre of the sphere and the person's hands, why are they not electrocuted? The answer is that the current flowing through them is tiny! | Links: 9I Energy and Electricity 13 Fields |
69.
 |
Select speed: Dial-up Mid-band Broadband |
Large plasma sphere discharging onto someone's face! Why does the plasma glow with such a ghostly purple light? The answer is that it contains an inert gas at low pressure, typically xenon or krypton | Links: 9I Energy and Electricity 13 Fields |
68.
 |
Select speed: Dial-up Mid-band Broadband |
Bike-wheel gyroscope demonstrates a mind of its own! Spin an old bike wheel and what do you notice? Not a lot - until, that is, you try and move the wheel or hold it by just one of the attached stunt pegs. | Links: Astro Zone |
67.
 |
Select speed: Dial-up Mid-band Broadband |
Bike-wheel gyroscope acts just like a giant spinning top! Spin an old bike wheel and what do you notice? Not a lot - until, that is, you try and move the wheel or hold it by just one of the attached stunt pegs. | Links: Astro Zone |
66.
 |
Select speed: Dial-up Mid-band Broadband |
Bike-wheel gyroscope demonstrates a mind of its own! Spin an old bike wheel and what do you notice? Not a lot - until, that is, you try and move the wheel or hold it by just one of the attached stunt pegs. | Links: Astro Zone |
65.
 |
Select speed: Dial-up Mid-band Broadband |
Bike-wheel gyroscope demonstrates a mind of its own! Spin an old bike wheel and what do you notice? Not a lot - until, that is, you try and move the wheel or hold it by just one of the attached stunt pegs. | Links: Astro Zone |
64.
 |
Select speed: Dial-up Mid-band Broadband |
Drainpipe xylophone brings a smile! Carefully calculating the length of each pipe (which requires working out an end correction of 0.6 times the radius of the pipe), results in a useful musical instrument which is surprisingly good fun to play. | Links: Y13 Waves, Y8 Sound and Hearing |
63.
 |
Select speed: Dial-up Mid-band Broadband |
10,000 Volts from Cling-film and a bit of friction? You can do this at home: just charge up a piece of cling film by rubbing it! Trillions of tiny electrons are moved and the cling film gets a huge static charge!! | Links: Y11 Using Electricity |
62.
 |
Select speed: Dial-up Mid-band Broadband |
Air-powered rocket in the lab. Newton's 3rd Law of Motion states that for every action there is an equal and opposite reaction. As the air rushes out of the back of the pop bottle, an equal force in the opposite direction is experienced by the rocket, which causes it to rapidly accelerate. | Links: Y10 PD3 Forces and Motion |
61.
 |
Select speed: Dial-up Mid-band Broadband |
Seagull attacking another on the Isle of Arran. Holy Isle in the background. | Links: 8D Ecology |
60.
 |
Select speed: Dial-up Mid-band Broadband |
A sonorous bell made from bell metal (an alloy of copper and tin). Obviously, bell metal must not rust, so cannot be made from Iron or Steel | Links: 9E Metals |
59.
 |
Select speed: Dial-up Mid-band Broadband |
MRS GREN and the Sensitive plant! Why does this plant instantly fold its leaves when touched? If you look closely, it certainly demonstrates how quickly plants can move! In Hawaii this plant is apparently classed as a weed! | Links: Y10 GNVQ Biology |
58.
 |
Select speed: Dial-up Mid-band Broadband |
Bungee from a crane! Filmed during the Merseyfest festival at Croxteth Park, Summer 2005 | Links: Y10 Forces and Motion |
57.
 |
Select speed: Dial-up Mid-band Broadband |
Combustion of Methane and Oxygen. This mixture
burnt explosively with a beautiful pink flame. The mixture was
carefully prepared in a 2:1 ratio of oxygen and methane. Methane + Oxygen → Carbon Dioxide + Water CH4 + 2O2 → CO2 + 2H2O |
Links: Extended study fire project |
56.
 |
Select speed: Dial-up Mid-band Broadband |
Combustion of Methane and Oxygen. This particular mixture was not explosive but burnt with a 'lazy' flame, much like a bunsen burner. A flame colour of yellow indicates a lower temperature, probably not enough oxygen, and incomplete combustion, compared to the hotter explosive mixture (see Clip No 56) | Links: Extended study fire project |
55.
 |
Select speed: Dial-up Mid-band Broadband |
Crossed polarisers at 90° do not let any light through from the Overhead Projector bulb. But inserting another polariser at 45° between the two crossed polarisers causes some light to pass! Why? Follow the link at the right, and then onto the Hyperphysics site for a full explanation | Links: Year 13 Waves |
54.
 |
Select speed: Dial-up Mid-band Broadband |
Crossed polarisers prove that light is a transverse electromagnetic wave | Links: Year 13 Waves |
53.
 |
Select speed: Dial-up Mid-band Broadband |
Test for Oxygen: relighting a glowing splint | Links: Extended study fire project |
52.
 |
Select speed: Dial-up Mid-band Broadband |
Burning Magnesium in pure
Oxygen to produce Magnesium Oxide: 2Mg + O2 → 2MgO |
Links: Extended study fire project |
51.
 |
Select speed: Dial-up Mid-band Broadband |
Burning Sulphur in pure
Oxygen to produce Sulphur Dioxide: S + O2 → SO2 |
Links: Extended study fire project |
50.
 |
Select speed: Dial-up Mid-band Broadband |
Wind Turbine on Ynys Môn (Island of Anglesey). Converting kinetic energy → electrical energy → sound energy. | Links: 9I Energy and Electricity |
49.
 |
Select speed: Dial-up Mid-band Broadband |
Steam engine converting chemical energy → heat energy → kinetic energy → sound energy. One cm³ of water, on boiling, expands to 1600 cm³ of steam! No wonder even a small steam engine is so impressive. | Links: 9I Energy and Electricity |
48.
 |
Select speed: Dial-up Mid-band Broadband |
Candle extinguished when it runs out of oxygen | Links: Extended study fire project |
47.
 |
Select speed: Dial-up Mid-band Broadband |
Solar-powered Hot Air balloon. High lift generated by an 8 metre long plastic bag, just 12 microns (0.012mm) thick! | Links: Engineering, Solar-Powered Balloon |
46.
 |
Select speed: Dial-up Mid-band Broadband |
Iron wool burning in pure oxygen. Camera: D of Y6 | Links: Primary |
45.
 |
Select speed: Dial-up Mid-band Broadband |
Iron wool burning in air. Camera: D of Y6 | Links: Primary |
44.
 |
Select speed: Dial-up Mid-band Broadband |
Magnesium ribbon burns even more spectacularly in pure brilliantly oxygen Camera: D of Y6 | Links: Primary |
43.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Magnesium ribbon burns brilliantly in air Camera: D of Y6 | Links: Primary |
42.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Carbon dioxide extinguishes a lighted splint! Camera: D of Y6 | Links: Primary |
41.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Pure oxygen relights a glowing splint! Watch a dimly glowing wooden splint burst into flame again as soon as the splint is placed into the gas jar. Camera: D of Y6 | Links: Primary |
40.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Cranky. The toy which converts stored strain energy from a spring into kinetic energy (plus some sound and heat energy) | Links: 9I Energy and Electricity |
39.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Three singing wine glasses. Rubbing the rim of a clean wine glass with a wetted finger makes the glass vibrate at its resonant frequency. Two of these wine glasses have water in them, one almost full, one half full. This reduces the natural resonant frequency (lowers the pitch). | Links: 8L Sound and Hearing |
38.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Two singing wine glasses. Rubbing the rim of a clean wine glass with a wetted finger makes the glass vibrate at its resonant frequency. One of these wine glasses has some water in it - which reduces the natural resonant frequency (lowers the pitch). | Links: 8L Sound and Hearing |
37.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
CREST Electric Motors project. This motor has not just one but two C-shaped electromagnets either side of the coil to provide its magnetic field. | Links: Engineering: CREST Electric motors project |
36.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
CREST Electric Motors project. This motor has a C-shaped electromagnet to provide its magnetic field. | Links: Engineering: CREST Electric motors project |
35.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
CREST Electric Motors project. Magnetic field is supplied by a simple small permanent magnet. | Links: Engineering: CREST Electric motors project |
34.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
CREST Electric Motors project. This motor has a C-shaped electromagnet to provide its magnetic field. Thanks to LF and AH. | Links: Engineering: CREST Electric motors project |
33.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
C-section electromagnet which is designed to be used to provide the magnetic field for an electric motor. | Links: Engineering: CREST Electric motors project |
32.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
School railings make a reasonable musical instrument when struck with a 1kg iron bar! | Links: 8L Sound and Hearing; 9E Properties of Metals |
31.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
BMFA 'Dart' model aeroplane flying in the GSHS Sports Hall. This is a simple balsa wood and tissue plane powered by a rubber band - surprisingly effective, and only costing £1.20 per plane when purchased as a class set! Survives crashing into the wall | Curriculum Link: Engineering: Flight |
30.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
BMFA 'Dart' model aeroplane flying in the GSHS Sports Hall. Survives crashing into the wall because of low speed and low mass. | Curriculum Link: Engineering: Flight |
29.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
BMFA 'Dart' model aeroplane flying in the GSHS Sports Hall. | Curriculum Link: Engineering: Flight |
28.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Can-crushing experiment during a Year 13 lesson. Camera JB | Curriculum Link: 7K Forces 9L Pressure |
27.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Time lapse sequence of corridor at our partner school: South Peninsula High School, Cape Town South Africa | Curriculum Link: South Peninsula High School |
26.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Can-crushing experiment using a 'proper' steel can with a rubber stopper as opposed to a simple drinks can. Atmospheric pressure is 100,000 Newtons per square metre. The surface area of the steel can is about 0.2m x 0.2m = 0.04 m². Therefore total force on the can = 100,000 x 0.04 = 4000 Newtons. No wonder it is crushed! | Curriculum Link: 7K Forces 9L Pressure |
25.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Trampolinist experiences the downward force due to gravity (10 Newtons force for every kg of body mass), plus the upward force from the trampoline. There is also a small amount of air resistance. On the Moon, gravity is only one-sixth of what is is on Earth - so you'd bounce 6 times higher, but each bounce would take ages! | Curriculum links: 7K Forces 9K Speeding up |
24.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Penguins waddling on land - full of effort, then swimming - effortlessly. Streamlined body shapes mean they can move at high speeds through the water. | Curriculum links: 7K Forces 9K Speeding up |
23.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Seals moving at slow speed, showing their fantastically streamlined body shapes which greatly reduce friction as they move through the water. | Curriculum links: 7K Forces 9L Pressure |
22.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Feeding time at a seal sanctuary in Skegness on England's East coast. These magnificent creatures are ungainly on land but tremendously sleek and powerful in water, aided by their streamlined body shape which greatly reduces friction. So why do Olympic swimmers sometimes wear full-body swimsuits? | Curriculum link: 9K Speeding up |
21.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Two pence piece rolling around a charity collection box. This models how an object orbits around a star - gradually speeding up as it gets closer to the star. Its velocity increases as its orbital radius decreases. You can also imagine this as an object being sucked into a black hole! | Curriculum links: Y11 Physics Y13 Physics |
20.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
MRS GREN: Time-lapse clip of broad bean plants from approx 9am to 6pm on March 30th 2005. Shows the effect of the plant hormone auxin in making the plants bend towards the light. So MRS GREN is correct - even plants move! These plants began by leaning away from the window but gradually bent towards the light during the day. 1 photo per 30s | Curriculum link: Y10 GNVQ Biology |
19.
 |
Select speed: ¹Dial-up ¹Mid-band ¹Broadband |
Transformer boiling water in an Aluminium section: Primary to Secondary turns ratio 1100:1. The step-down in turns leads to a corresponding step-up in current. | Curriculum link: Y11 Physics |
18.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Transformer melting an iron nail!: turns ratio 1100:6. The step-down in turns leads to a corresponding step-up in current. Camera JS | Curriculum link: Y11 Physics |
17.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Implosion of a steel drinks can due to atmospheric pressure, Camera GH | Curriculum link: 9L Pressure |
16.
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Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Implosion of a steel drinks can due to atmospheric pressure, Camera: GH | Curriculum link: 9L Pressure |
15.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Implosion of an aluminium drinks can due to atmospheric pressure, Camera: LN | Curriculum link: 9L Pressure |
14.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Electric motor needs 2 magnets, coil and commutator | Curriculum link: Y11 Physics |
13.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Electric motor needs 2 magnets, coil and commutator | Curriculum link: Y11 Physics |
12.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Forces on a merry-go-round. What is the force pushing you sideways? This is all about inertial reference frames. | Curriculum link: Y13 Physics |
11.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Forces on a merry-go-round. Why does the ball appear to swerve right? No matter how hard you try, it is impossible to throw the ball 'in a straight line' if you are on the merry-go-round | Curriculum link: Y13 Physics |
10.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Forces on a merry-go-round. Why does the ball appear to swerve right? | Curriculum link: Y13 Physics |
9.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Forces on a merry-go-round. Rotating frame of reference - why does the ball appear to move left? | Curriculum link: Y13 Physics |
8.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Forces on a merry-go-round. Rotating frame of reference - why does the ball appear to move left? | Curriculum link: Y13 Physics |
7.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Marge Simpson's hair - in Methane filled bubbles!
Camera PE. Why do the bubbles rise up so dramatically on igniting? Don't try this at home! |
Curriculum link: Y10 Physics, Energy in the Home |
6.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
The gunpowder plot! courtesy of Mr Chard. How do you make gunpowder reliably? What is the recipe?! Why is gunpowder not used today? What is used instead? | Curriculum links:: Y7 Reactions 9H Using Chemistry |
5.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Card supports upside-down jarful of water? This is all due to atmospheric pressure - but how? Camera NP | Curriculum link: 9L Pressure |
4.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Time-lapse clouds on Table Mountain, Cape Town, South Africa. Why do clouds form? What are they made from? Why are they white? | Curriculum link: Y7 Particle Model |
3.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Can Crushing pressure. The atmosphere presses down on us with a huge pressure: 100,000 Newtons per square metre. Normally we cannot see the effects of this pressure, because the pressures inside and outside objects are the same. But watch what happens when the inside pressure is suddenly removed: Camera TL | Curriculum link: 9L Pressure |
2.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Sledging in Taylor Park. Why does snow provide such a low friction surface for sledges? Why do wooden runners not run as well as plastic runners? | Curriculum link: 7K Forces |
1.
 |
Select speed: ¹Dial-up, ¹Mid-band, ¹Broadband |
Air pressure toy keeps ball aloft: | Curriculum link: 9L Pressure |