Physical Science Final Exam Review

Front

For two forces to be balanced, what must be true?

Back

They must be opposite in direction and equal in magnitude.

Front

Which of the following would cause the LEAST energetic waves?

Back

Long wavelength, low frequency.

Front

What does conduction require?

Back

Direct contact.

Front

A mechanical wave cannot travel through...

Back

A vacuum (empty space).

Front

Why can sound not travel through a vacuum?

Back

Sound waves require a medium to travel and a vacuum doesn't contain any matter.

Front

What is the definition of a wave?

Back

A disturbance that transfers energy from one place to another.

Front

What are the two main types of waves?

Back

Mechanical waves and electromagnetic waves.

Front

What is the difference between longitudinal and transverse waves?

Back

In longitudinal waves, particles move parallel to the wave direction; in transverse waves, particles move perpendicular to the wave direction.

Front

What is frequency in the context of waves?

Back

The number of waves that pass a point in one second.

Front

What is wavelength?

Back

The distance between two consecutive points in phase on a wave.