Gr.8 Term 3 Practice

The amplitude of a wave is the distance between a point on one wave and the identical point on the next wave.

• True

• False

For a wave, the _____ the amplitude, the _____ energy the wave carries.

• larger, more

• smaller, more

• larger, less

• smaller, same

As the frequency of a wave increases, the wavelength increases.

• True

• False

Transverse waves move particles back and forth along the same direction in which the waves travel.

• True

• False

To produce sound, an object must be ____.

• moving

• heated

• in a gas

• vibrating

Sound travels fastest in a ____.

• solid

• liquid

• gas

• vacuum

The number of wave cycles completed in one second is -------------.

• amplitude

• frequency

• wavelength

• crest

Which of the following is NOT a way that waves interact with matter?

• Waves can be reflected by matter.

• Waves are affected by gravity.

• Waves can change direction when they travel from one material to another.

• As waves pass through matter, some of the energy they carry can be transferred to matter.

What is a compression in a sound wave?

• low pressure area

• high pressure area

• A quiet area

• A flat line

Which of the following is an example of a mechanical wave?

• Light wave    

• X-ray

• Radio wave

• Sound wave