Class Clips

# SecondaryScience : Phys: Forces - Motion

Clip description Keywords
Acceleration and force

Duration: 01:16

Acceleration or increasing speed is demonstrated when a constant force is applied to an object.

Aerodynamic challenges

Duration: 06:33

Andy Green interviews a key engineer responsible for the design of Bloodhound SSC and they discuss the challenges that they have faced during this and previous projects.

Airbags for motorcyclists

Duration: 01:33

A new airbag for motorcyclists has been tested at the Isle of Man TT Race.

Ash cloud

Duration: 04:04

When civil aviation is grounded by a cloud of volcanic ash, scientists and different agencies work together to collect and analyse data.

Balanced and unbalanced forces

Duration: 00:35

A demonstration of the effect of forces on the movement of an object. Balanced and unbalanced forces are discussed.

Bernoulli's Principle

Duration: 02:33

A brief explanation by Dr Yan from the BBC One series 'Bang Goes the Theory' of Bernoulli's Principle using members of the public, plastic tubes and ping pong balls.

Calculating average speed

Duration: 01:36

A skater's average speed is calculated and increases each time they start at a higher point on a ramp.

Calculating the speed of a car

Duration: 04:00

Different methods are used by the police to calculate the speed of cars.

Can you go all the way round on a swing? (pt 1/4)

Duration: 02:43

Jem Stansfield from 'Bang Goes the Theory' uses a scaled down model to prove that it is possible to use a water rocket to propel a person all the way round on a swing.

Can you go all the way round on a swing? (pt 2/4)

Duration: 02:45

A full scale rig is built and tested by Jem Stansfield from 'Bang Goes the Theory' to see if a water rocket could be used to propel a person sitting on a swing in a 360 degree circle.

Can you go all the way round on a swing? (pt 4/4)

Duration: 02:33

Jem Stansfield from 'Bang Goes the Theory' reviews his successful 360 degree swing and describes the forces acting and the emotions he felt during the challenge.

Can you go all the way round on a swing? Clip 3 of 4

Duration: 05:36

A deceleration system is designed and tested by Jem Stansfield from 'Bang Goes the Theory' in order to slow down a person being propelled in a full circle around a swing by a water rocket. The system is then successfully used by a person.

Car vs fighter jet - which is faster?

Duration: 08:14

The Bugatti Veyron is designed for maximum speed on the ground, the Eurofighter is designed to be fastest in the air - but in a head to head race, which will come first?

Cars that automatically obey speed limits

Duration: 01:27

Speed-limiting devices should be fitted to cars on a voluntary basis to help save lives and cut carbon emissions.

Centripetal force and circular motion

Duration: 03:02

Dr Yan from 'Bang Goes the Theory' demonstrates how the tension in a length of string provides the centripetal force to cause circular motion in a glass of water swung on a tray, preventing the water from falling to Earth.

Conservation of angular momentum

Duration: 01:55

How a flywheel can be used to initiate circular motion - simple demonstration using people and swivel chairs.

Edge of space

Duration: 01:07

Archive footage from 1960 shows the world's highest skydive.

Einstein's Time Dilation equation

Duration: 01:26

Matt Collings uses Einstein's time dilation equation to explain why time doesn't always travel at the same speed.

Frictional forces - why trainers grip well

Duration: 01:32

The frictional force of different shoes depends on the type of material the sole is made from; and friction always opposes motion.

G-Force

Duration: 06:53

The term G-force is investigated in a range of everyday and more extreme situations including bungee jumping, a rocket sled and a centrifuge for training fighter pilots.

Gravity and freefalling

Duration: 00:53

A demonstration of the effects of gravity on a body in a lift, as both the lift and the body go into freefall.

Gravity and projectile motion

Duration: 03:12

An introduction to projectile motion.

Gravity, momentum and air resistance on falling objects

Duration: 02:10

An explanation of why identical shaped objects of different mass do not fall at the same speed on Earth.

How to make a water bottle rocket

Dr Yan from 'Bang Goes The Theory' explains how to make and launch a water bottle rocket.

Jet engines

Duration: 04:21

A explanation of how a jet engine works and how it can be effected by volcanic dust.

Jet Pack

Duration: 03:08

Using a pressurised water jet pack, the presenter demonstrates the principles of Newton's 3rd Law.

Jet Pack Take 2

Duration: 04:10

A practical demonstration of Newton's third Law using a water jet pack.

Joe Kittinger's historic skydive from 'the edge of space'

Duration: 05:40

A description of the historic 30km skydive made by Joe Kittinger in 1960.

Killer Falls

Duration: 03:18

Explanation of what determines an object's terminal velocity.

Land speed record

Duration: 00:23

A short introduction to the Bloodhound SSC project which aims to break the world land speed record, as reported by Dallas Campbell from the BBC One series 'Bang Goes The Theory'.

Making a water-powered jet backpack

Duration: 04:30

A jet backpack powered by water is built and successfully tested using water pumped from a fire engine.

Making water bottle rockets

Duration: 03:12

A practical demonstration using a bicycle pump to make a rocket out of a plastic bottle.

Model astronaut launched into space with a helium balloon

Duration: 05:15

A model astronaut is launched into space with a helium balloon and then parachutes back to Earth.

Newton's 3rd Law

Newton’s third law is applied to skateboarders, water rockets and space rockets.

Newton's equation of gravity

Duration: 01:20

Matt Collings explains Newton's equation for gravity.

Newton's First Law of Motion

Duration: 00:37

A definition of Newton's First Law of Motion using the example of a gymnast.

Newton's Second Law of Motion

Duration: 01:16

Newton's Second Law of Motion is described through the examples of rockets, cars and seatbelts.

Newton's Third Law of Motion

Duration: 01:00

Newton's Third Law of Motion is explained using the example of a rocket.

Newton's Three Laws of Motion

Duration: 03:00

Newton's Three Laws of Motion are demonstrated using a rocket-powered sledge on an ice rink.

Projectile motion

Duration: 00:54

Athletics examples to demonstrate projectile motion.

Projectile motion and equations

Duration: 02:08

Using measurements and calculations to predict how far a projectile will travel.

Satellite motion

Duration: 01:12

An explanation of satellite motion and free fall conditions.

Science of skiing

Duration: 05:31

A look at how the coefficient of friction between skis and snow can be changed using lubrication.

Sending a Reliant Robin into space (pt 1/2)

Duration: 09:31

Can a Reliant Robin fly? The Top Gear team set out to make their own version of the space shuttle.

Sending a Reliant Robin into space (pt 2/2)

Duration: 04:14

The Top Gear team and expert rocket designers finally get the chance to put their Reliant Robin space shuttle to the test.

Skydiving through the sound barrier

Duration: 04:24

What happens to the body when it goes supersonic?

Speed-time graphs

Duration: 03:39

Speed-time graphs are drawn for a rocket and a skydiver.

Supersonic flight

Duration: 06:58

Dallas Campbell uses a supersonic flight experience to explain the challenges to supersonic travel and these are then related to the design of the Bloodhound project, in an attempt to break the sound barrier at ground level.

Terminal velocity - why do cats have nine lives?

Duration: 02:44

An introduction to terminal velocity using falling cats as an example.

Testing Isaac Newton's theory of gravity

Duration: 05:43

Professor Brian Cox and NASA Apollo scientist Peter Shelus explain how Newton’s theory of gravity is inaccurate when tested using modern instruments.

The physics of free-fall

Duration: 04:49

The risks of free falling from the edge of space.

The story of physics

Duration: 04:15

An animated history of physics from Galileo's pendulums to Einstein's theory of relativity.

Under pressure

Duration: 02:57

A diver demonstrates why diving with a very long snorkel would be impossible.

Using momentum to make a ball bounce more

Duration: 01:16

A practical demonstration showing how the momentum of a large ball can be used to propel a smaller one.

Vortex Cannon

Duration: 04:50

The simple idea of smoke rings is scaled up to create a powerful vortex cannon.

Vortex Challenge

Duration: 01:32

Simple equipment is used to create a powerful vortex that transfers energy through the air.

Why can’t I run fast?

Duration: 5:14

Presenter Greg Foot investigates whether humans will be able to run faster and continue to break world records, or if there is a limit to human performance.

Why do boomerangs come back?

Duration: 03:47

Presenter Greg Foot investigates why, when throwing a boomerang correctly, it will always return to its thrower.

Why does a human have a different terminal velocity to a mouse?

Duration: 03:29

Explanation of what determines an object's terminal velocity.

Woman, 94, goes skydiving

Duration: 01:42

A 94-year-old woman has made a successful skydive in Nottinghamshire for charity.