Physical Science Midterm Test Review

Front

What happens to the pitch of a car horn when the car moves away from you?

Back

The horn seems low pitched.

Front

What is a key property that distinguishes light waves from mechanical waves?

Back

A light wave can travel without a medium.

Front

How does an inclined plane assist in lifting heavy objects?

Back

Less force is needed to move the object over a longer distance.

Front

What can be done to increase the strength of an electromagnet?

Back

Use a battery with more voltage to increase the current.

Front

What happens to the current in a circuit if the resistance increases while the voltage remains constant?

Back

The current decreases so the electrons would slow down.

Front

Define 'wave' in the context of physical science.

Back

A wave is a disturbance that transfers energy through space or matter.

Front

What is the difference between transverse and longitudinal waves?

Back

Transverse waves oscillate perpendicular to the direction of energy transfer, while longitudinal waves oscillate parallel to the direction of energy transfer.

Front

What is the formula for calculating work done?

Back

Work = Force x Distance.

Front

Explain the concept of energy conservation in physical science.

Back

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

Front

What is the role of a medium in wave propagation?

Back

A medium is the substance through which a wave travels; mechanical waves require a medium, while electromagnetic waves do not.