Force, Energy and Circuits

Front

What is a force?

Back

A push or a pull.

Front

Which force pulls objects down towards the Earth?

Back

Gravity.

Front

What happens when you increase the force applied to an object?

Back

It increases the distance and speed of the object.

Front

What is an example of a closed circuit?

Back

The circuit is closed, the light is on.

Front

What type of energy do wind turbines use to produce electricity?

Back

Mechanical energy.

Front

What is energy?

Back

The ability to do work or cause change.

Front

What is friction?

Back

A force that opposes motion between two surfaces in contact.

Front

What is acceleration?

Back

The rate at which an object changes its velocity.

Front

What is the difference between potential energy and kinetic energy?

Back

Potential energy is stored energy, while kinetic energy is energy of motion.

Front

What is an open circuit?

Back

A circuit that is not complete, so electricity cannot flow.