Unit 3 Energy Test Review

Front

What is a vector?

Back

A vector is a quantity that has both magnitude and direction, such as velocity or force.

Front

What happens to potential energy when an object is raised to a higher position?

Back

The potential energy increases as the height of the object above the ground increases.

Front

What is a scalar?

Back

A scalar is a quantity that has only magnitude and no direction, such as temperature or mass.

Front

What happens to potential energy as an object falls?

Back

The potential energy decreases as the object falls to a lower height.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its height above the ground, calculated as PE = mgh (mass x gravity x height).

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, calculated as KE = 1/2 mv² (1/2 x mass x velocity squared).

Front

How does height affect gravitational potential energy?

Back

Gravitational potential energy increases with height; the higher the object, the more potential energy it has.

Front

What is the relationship between potential energy and kinetic energy in a falling object?

Back

As an object falls, its potential energy decreases while its kinetic energy increases, conserving total mechanical energy.

Front

What is elastic potential energy?

Back

Elastic potential energy is the energy stored in elastic materials as the result of their stretching or compressing.

Front

What is the principle of conservation of energy?

Back

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