Forces, Motion and Energy Revision

Front

What is gravitational force?

Back

Gravitational force is the attraction between two objects with mass. The strength of this force depends on the masses of the objects and the distance between them.

Front

What determines the gravitational force experienced by an object?

Back

The gravitational force experienced by an object is determined by its mass; the larger the mass, the greater the gravitational force.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its state of motion. It occurs when the total forces acting on an object are not equal.

Front

Give an example of an unbalanced force.

Back

A girl shooting a basketball is an example of an unbalanced force, as the force applied to the ball causes it to move.

Front

What is Newton's 3rd Law of Motion?

Back

Newton's 3rd Law states that for every action, there is an equal and opposite reaction.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It depends on the mass and speed of the object.

Front

Provide an example of kinetic energy.

Back

A car driving on the highway is an example of kinetic energy because it is in motion.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. It can be converted into kinetic energy.

Front

What is the formula for calculating kinetic energy?

Back

The formula for kinetic energy (KE) is KE = 1/2 mv², where m is mass and v is velocity.

Front

What is an ammeter used for?

Back

An ammeter is used to measure electric current in a circuit.