Properties of Waves
Wave motion
100

A transverse wave moves along a rope. The diagram shows the position of the rope at one particular time. Which two labelled points are one wavelength apart?

XZ

100

It describes the number of waves passing a given point per second.

frequency

200

It is something that a wave carries as it propagates.

energy

200

A high frequency wave is one with a ____________ wavelength.

short

300

Which between parts of a wave should an amplitude be measured?

equilibrium and crest or trough

300

A wave on a string has a wavelength of 4.0 m and is connected to a source whose frequency is 50 Hz. How fast is the wave propagating?

200 m/s

400

Complete the statement. "For a source to produce wave, it must ___________."

vibrate

400

A pulse of sound is produced at the bottom of a boat. The sound travels through the water and is reflected from the sea-bed. The sound reaches the boat again after 1.3 s. The sea-bed is 1000 m below the boat. What is the frequency of the sound produced if its wavelength is 5.13 m?

around 300 Hz

500

Complete the statement.

"A transverse wave has the motion of its particles ____________ to the direction of its propagation, while for longitudinal wave, it is _______________.

perpendicular for transverse

parallel for longitudinal

500

A vibrating object produces ripples on the surface of a liquid. The object completes 20 vibrations every second. The spacing of the ripples, from one crest to the next, is 3.0 cm. What is the speed of the ripples?

60 cm/s