Unit 4 Test Review

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as from chemical energy to mechanical energy.

Front

What energy transformation occurs when gasoline burns in an automobile?

Back

Chemical → Mechanical + Heat.

Front

What happens to gravitational potential energy when an object is dropped?

Back

Gravitational potential energy is converted to kinetic energy.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, typically related to its height.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, dependent on its mass and velocity.

Front

What happens to a skier's potential and kinetic energy as they ski down a slope?

Back

As a skier goes down a slope, their potential energy decreases while their kinetic energy increases.

Front

What is an example of a device that converts electrical energy to thermal energy?

Back

A toaster is a device that converts electrical energy to thermal energy.

Front

What is the formula for calculating gravitational potential energy?

Back

Gravitational Potential Energy (GPE) = mass (m) × gravitational acceleration (g) × height (h).

Front

What is the relationship between height and gravitational potential energy?

Back

Gravitational potential energy increases as the height of an object increases.

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.