Topic Quiz on Waves

In a wave, the distance between the crest and a trough is:
1. The equilibrium position
2. The amplitude
3. The double amplitude
4. The wavelength
Which one of the following statement best explains that simple waves describe simple harmonic motion?
1. They look like sine waves.
2. There is a maximum displacement from the rest position.
3. Particles accelerate towards the rest position.
4. The particles appear to move in circles.
Which one of the following statements best describes a progressive wave?
1. Energy is transferred, but material is not.
2. Material is transferred, but energy is not.
3. Neither material nor energy are transferred.
4. Both material and energy are transferred.
The frequency of a wave is:
1. The power per unit area of a wave.
2. The distance between two successive crests
3. How long a wave takes to pass a point.
4. The number of waves per second
Which one of the following statements about mechanical waves is NOT correct?
1. They need a material to travel in.
2. They can travel in a vacuum
3. They can be longitudinal or transverse.
4. The can be polarised.
Two waves have their crest 1/4 cycle apart. The phase difference in radians is:
1. pi
2. pi/4
3. pi/2
4. 2 pi
Which one of the following statements is true for ALL transverse waves?
1. They can travel in a vacuum.
2. The displacement of particles is parallel to the direction of travel
3. The can be polarised
4. They are always in phase.
Which one of these statements is NOT true about sound waves?
1. They cannot travel in a vacuum.
2. They cannot be polarised.
3. The displacement of particles is parallel to the direction of travel.
4. The denser the material, the slower the waves travel.
The pitch of a sound is an indication of
1. its frequency
2. its speed
3. its amplitude
4. whether its a longitudinal or transverse wave.
The wave equation is:
1. speed = frequency/wavelength
2. speed = frequency x wavelength
3. speed = 1/frequency x wavelength
4. speed = wavelength/frequency