Wave parameters and behaviours

1

How is the frequency of a wave best described?

2

If the frequency of a wave is 20 Hz, what is the period of the wave?

3

What is the amplitude of a wave that is 0.6 m from peak to trough?

Sine wave with amplitude labelled 0.6 m. The wavelength (the distance between two peaks) is labelled with the lambda symbol.

4

How is the speed of a wave defined?

5

If the period of wave is 400 ms (0.4 s), what is the frequency of the wave?

6

What is the wavelength of the wave?

Sine wave which contains four cycles within 20 m.

7

Which of the following is a longitudinal wave?

8

If a student sees the flash of lightning strike and then hears the thunder six seconds later, how far away is the storm?

9

If an ultrasound pulse travels a total distance of 6 cm (0.06 m) to and from an organ and takes 40µs ( 4 \times {10^{ - 5}}s), what is the speed of sound in the tissue?

10

If a water wave has a wavelength of 3 m and a frequency of 0.25 Hz, what is the speed of the water wave?

Sine wave with wavelength (lambda) labelled as 3 m.

11

If a sound wave in air has a frequency of 1440 Hz, what is the wavelength of the wave?

12

What is the wavelength of a radio wave of frequency 89 MHz?

13

A streetlamp can emit a light of wavelength  6 \times 10^{-7}m. What is the frequency of this light?

14

If the distance to a satellite is 36,000 km, how long does it take a signal to get from the transmitting station to a receiving station back on Earth? Be careful there are two points to watch for.

A view of the Earth in space with a satellite in orbit. An arrow labelled 36,000 km travels from a transmitting station on Earth to the satellite. Another arrow, also labelled 36,000 km, travels from the satellite to a receiving station on Earth.

15

What is diffraction?

16

Which of the following radio signals will reach a village in the bottom of a valley best?