Forces and Motion

Big Ideas: More info...

Objects interact with each other (by contact or at a distance) - giving rise to pairs of forces.
A force acting on an object causes its velocity to change; without a net force, its velocity is constant.

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Investigating free fall with a light gate

Demonstration: The acceleration of an object allowed to fall under the force of gravity is found by dropping a card vertically...

Practical Activity 14-16

Demonstration and Class practical: This is a version of an experiment devised and carried out by Galileo. He used it to...

Practical Activity 14-16

Demonstration: This provides an interesting and graphic way of obtaining a value for the acceleration of a falling object...

Practical Activity 14-16

Demonstration: A steel ball rolls down a slope, starting from rest.

Practical Activity 14-16