Sound Waves Assessment

8. The lowest part of a transverse wave is known as a (a)   .

• Trough

• Crest

• Compression

• Rarefaction

• Medium

Answer explanation

The lowest part of a transverse wave is called a trough. In contrast, the highest part is known as a crest. Compression and rarefaction refer to longitudinal waves, while medium is the substance through which waves travel.

Match the following terms with their definitions.

• The ability to do work or cause change through vibrations

• Mass

• The force of gravity on an object

• Matter

• The amount of matter in an object

• Energy

• Anything that has mass and takes up space

• Weight

Which type of wave does sound travel in?

• Transverse

• Longitudinal

Answer explanation

Sound travels in longitudinal waves, where the particles of the medium move parallel to the direction of the wave. This is different from transverse waves, where particles move perpendicular to the wave direction.

The type of wave is (a)   .

• Transverse

• Longitudinal

Answer explanation

The correct answer is 'Longitudinal' because longitudinal waves are characterized by particle movement parallel to the direction of wave propagation, as seen in sound waves. Transverse waves, in contrast, have particle movement perpendicular to the wave direction.

What type of wave is this?

• Transverse

• Longitudinal

Answer explanation

The wave is classified as transverse because the particle motion is perpendicular to the direction of wave propagation, unlike longitudinal waves where particle motion is parallel to the wave direction.

Distance from 'y' to 'y' is a (a)  

• Wavelength

• Amplitude

• Compression

• Rarefaction

Answer explanation

The distance from 'y' to 'y' refers to the wavelength, which is the length of one complete wave cycle. Wavelength is a key characteristic of waves, distinguishing it from amplitude, compression, and rarefaction.