Compressions and rarefactions are formed as a result of ____ wave propagating through a material medium.

In a transverse wave, the particles of the medium vibrate ____ to the direction of wave propagation.

1. Parallel
2. Perpendicular
3. At 30 degrees
4. At 80 degrees

In a longitudinal wave, the particles of the medium vibrate ____ to the direction of wave propagation.

1. Parallel
2. Perpendicular
3. At 30 degrees
4. At 80 degrees

The picture below represents a ____ wave.

1. Transverse wave
2. Longitudinal wave
3. Sound wave
4. Water wave

The picture below represents a _____ wave.

1. Transverse wave
2. Longitudinal wave
3. Sound wave
4. Water wave

This slinky wave represents a _____.

1. Transverse wave
2. Longitudinal wave
3. Sound wave
4. Water wave

The pressure of a medium _____ when a longitudinal wave propagates through it.

1. Becomes uniform
2. Stays the same
3. Becomes non-uniform
4. Dilutes

The density of a medium ____ when a transverse wave propagates through it.

1. Becomes zero
2. Becomes non-uniform
3. Dilutes
4. Does not change

Light waves are ______ waves.

1. Transverse
2. Longitudinal
3. Mechanical
4. Both a and c

When a longitudinal wave propagates through a medium in a forward direction, the particles of the medium move _____.

1. Back and forth
2. Up and down
3. Sideways
4. Both b and c

The loudness of a sound is given by its _____. 

1. Amplitude
2. Frequency
3. Wavelength
4. Time period

A louder sound is audible even if the source of sound is far away. This is because ____. 

1. Louder sounds are of greater frequency 
2. Louder sounds transfer a high amount of energy 
3. Louder sounds are of smaller frequency 
4. Louder sounds transfer a low amount of energy 

The picture below shows sound waves in different colors. Pick the color of the sound wave which is of the highest frequency.