IGCSE Physics Wave Properties

Which of the following is an example of a longitudinal wave?

• Water waves

• Light waves

• Sound waves

• Waves on a string

A wave has a frequency of 500 Hz and a wavelength of 0.7 m. What is its speed?

• 350 m/s

• 700 m/s

• 250 m/s

• 175 m/s

What happens to the wavelength of a wave when its frequency is doubled and its speed remains constant?

• It doubles

• It halves

• It remains the same

• It quadruples

Which property of a wave determines its loudness in sound or brightness in light?

• Frequency

• Wavelength

• Amplitude

• Speed

A wave travels 120 m in 4 seconds. If its wavelength is 3 m, what is its frequency?

• 10 Hz

• 40 Hz

• 20 Hz

• 30 Hz

What type of wave can travel through a vacuum?

• Sound waves

• Water waves

• Electromagnetic waves

• Seismic waves

In which medium does sound travel fastest?

• Air

• Water

• Steel

• Vacuum

What is the name given to the bending of waves around obstacles?

• Reflection

• Refraction

• Diffraction

• Interference

Which color of visible light has the longest wavelength?

• Violet

• Blue

• Green

• Red

What happens to the speed of sound as the temperature of air increases?

• Decreases

• Increases

• Remains the same

• Becomes zero