SchoolN Motion.Forces Test

Front

What is energy?

Back

Energy is the ability to do work or cause change. It can exist in various forms, such as kinetic, potential, thermal, and more.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. It depends on the mass of the object and its velocity.

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state. For example, a raised object has gravitational potential energy.

Front

What happens to energy when an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases, assuming no energy is lost to air resistance.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the potential energy an object has due to its height above the ground. It is calculated as weight times height.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It occurs when two surfaces come into contact.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its motion. It occurs when the net force acting on an object is not zero.

Front

What is a balanced force?

Back

A balanced force is when two forces acting on an object are equal in size and opposite in direction, resulting in no change in motion.

Front

How does a seatbelt protect passengers in a car?

Back

A seatbelt creates an unbalanced force that stops the motion of a person during a sudden stop or collision.