Waves - Quiz 1

A progressive wave is:

• a wave that transfers energy from one point to another without transferring matter

• a wave that remains stationary and does not transfer energy

• a wave that only vibrates at a single point

• a wave that requires no medium to travel

A transverse wave is:

• a wave in which the particles of the medium move perpendicular to the direction of wave propagation

• a wave in which the particles of the medium move parallel to the direction of wave propagation

• a wave that does not require a medium to travel

• a wave that travels only through solids

A longitudinal wave is:

• a wave in which the particles of the medium move parallel to the direction of wave propagation

• a wave in which the particles of the medium move perpendicular to the direction of wave propagation

• a wave that does not require a medium to travel

• a wave that can only travel through solids

4. For the longitudinal wave shown below, identify which part represents a compression and which part represents a rarefaction.

• Compression is where particles are closest together, rarefaction is where particles are farthest apart.

• Compression is where particles are farthest apart, rarefaction is where particles are closest together.

• Compression and rarefaction are the same in a longitudinal wave.

• Compression and rarefaction do not exist in longitudinal waves.

Select the correct arrow that indicates the wavelength of the longitudinal wave above.

• An arrow from the center of one compression to the center of the next compression.

• An arrow from the start to the end of a rarefaction.

• An arrow from the start to the end of a compression.

• An arrow from the start of one rarefaction to the end of the next compression.

Displacement, amplitude, and wavelength in a wave travelling through air refer to which of the following?

• Displacement is the distance a particle moves from its rest position, amplitude is the maximum displacement, and wavelength is the distance between two consecutive crests or troughs.

• Displacement is the speed of the wave, amplitude is the frequency, and wavelength is the time taken for one oscillation.

• Displacement is the energy of the wave, amplitude is the direction, and wavelength is the height of the wave.

• Displacement is the pressure change, amplitude is the temperature, and wavelength is the color of the wave.

6. Select the correct arrow that shows the wavelength in the diagram below.

• Arrow from one crest to the next crest

• Arrow from crest to trough

• Arrow from midpoint to crest

• Arrow from midpoint to trough

Frequency is defined as:

• the number of occurrences of a repeating event per unit time

• the amount of energy in a wave

• the speed at which a wave travels

• the distance between two wave crests

The graph below is displacement against time graph for a point in space as a progressive wave of constant amplitude passes the point. From the graph opposite, measure the wave amplitude and time period.

The graph below is displacement against time graph for a point in space as a progressive wave of constant amplitude passes the point. Calculate the frequency of the wave.