Unit 4- Energy Transfer Exam-7th Grade 2024

Front

What is an experiment?

Back

An investigation that involves the identification of variables and a control.

Front

What energy transformation occurs in an electric alarm clock?

Back

Electrical energy is converted to sound energy.

Front

What does the Law of Conservation of Energy state?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

What happens to temperature when heat is removed from a system?

Back

The temperature decreases.

Front

What is heat transfer?

Back

The movement of thermal energy from one object to another.

Front

What is the result of adding heat to a system?

Back

The temperature of the system increases.

Front

What is a variable in an experiment?

Back

A factor that can change in an experiment.

Front

What is a control in an experiment?

Back

A standard for comparison that remains constant.

Front

What is sound energy?

Back

Energy produced by vibrating sound waves.

Front

What is electrical energy?

Back

Energy caused by the movement of electrons.