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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Introduction to electric forces

Demonstration: Electrostatic forces are an example, like gravitational and magnetic forces, of "action at a distance".

Practical Activity 14-16

Demonstration: An illustration of a collision with invisible forces.

Practical Activity 14-16