Force, Work and Energy - Revision

Front

What are the two magnetic poles of a magnet?

Back

North Pole and South Pole.

Front

What is friction?

Back

A force that opposes the motion of an object.

Front

What is an example of helpful friction?

Back

Brakes used on a bike.

Front

How can friction be reduced?

Back

By reducing the force between surfaces, using lubricants like oil, or smoothing surfaces.

Front

What is energy?

Back

The ability to do work.

Front

What is the difference between kinetic and potential energy?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy based on position.

Front

What is work in physics?

Back

Work is done when a force causes an object to move.

Front

What is a non-magnetic object?

Back

An object that does not have magnetic properties, like a wood chair.

Front

What is the formula for calculating work?

Back

Work = Force x Distance.

Front

What is gravitational potential energy?

Back

Energy stored in an object due to its height above the ground.