Waves Quiz - Set 1

Which of these is an example of a transverse wave?

• ripples on the surface of water

• seismic P-waves

• sound waves

• ultrasound

Which of these is the correct description of the amplitude of a wave?

• how big or small the wave is compared to how long it is

• the maximum displacement of a point on a wave away from its undisturbed position

• the distance from a point on one wave to the equivalent point on the adjacent wave

• the number of waves passing a point each second

Given that the period of a wave is calculated using period = 1/frequency, what is the period of a wave with a frequency of 20Hz?

• 0.005s

• 0.05s

• 0.5s

• 5s

Which of these is the correct definition of an electromagnetic wave?

• A. Longitudinal waves which transfer energy from the source of the waves to an absorber; these waves form a continuous spectrum and travel at the same velocity through a vacuum or air

• B. Longitudinal waves which transfer energy from the source of the waves to an absorber; these waves form a continuous spectrum and travel at different velocities through a vacuum or air

• C. Transverse waves which transfer energy from the source of the waves to an absorber; these waves form a continuous spectrum and travel at the same velocity through a vacuum or air

• D. Transverse waves which transfer energy from the source of the waves to an absorber; these waves form a continuous spectrum and travel at different velocities through a vacuum or air

Which group of the electromagnetic spectrum has the shortest wavelength?

• Gamma rays

• Radio waves

• Visible light

• X-rays

Which group of the electromagnetic spectrum does not harm the body?

• gamma rays

• radio waves

• ultraviolet rays

• X-rays

Which of these is not a use of infrared waves?

• certain types of cameras

• cooking food

• electrical heaters

• satellite communications

For electromagnetic waves, what is the link between wavelength and frequency?

• as the wavelength decreases the frequency increases

• as the wavelength increases the frequency increases

• as the wavelength decreases the frequency decreases

• there is no link between wavelength and frequency

Which of these is not a use of ultraviolet light?

• disinfecting water

• energy-efficient lamps

• medical imaging

• sun tanning

A wave has a frequency of 150Hz and a wavelength of 0.05m, what is the speed of the wave?

• 0.75m/s

• 7.5m/s

• 75m/s

• 750m/s