Forces and motion

Front

What is mass?

Back

Mass is the amount of matter in an object, measured in kilograms (kg). It does not change regardless of location.

Front

What is weight?

Back

Weight is the force exerted by gravity on an object, measured in Newtons (N). It can change depending on the gravitational pull of the location.

Front

How does mass differ from weight?

Back

Mass is a measure of matter and remains constant, while weight is a force that can change based on gravity.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state, such as a compressed spring.

Front

What is the relationship between potential energy and the position of a spring?

Back

The more a spring is compressed or stretched, the more potential energy it has.

Front

What is electric force?

Back

Electric force is the attraction or repulsion between charged objects.

Front

What is friction?

Back

Friction is the force that opposes the motion of an object when it comes into contact with another surface.

Front

What is thrust?

Back

Thrust is the force that propels an object forward, such as the force produced by a rocket engine.

Front

What force must thrust overcome to launch a rocket?

Back

Thrust must overcome gravity acting on the rocket to send it into space.

Front

What happens to a toy car when it rolls to a stop?

Back

The car stops due to the force of friction acting against its motion.