Waves

What are the two main types of waves?

• Sound waves and light waves

• Radio waves and gamma rays

• Longitudinal waves and transverse waves

• Mechanical waves and electromagnetic waves

Which type of wave requires a medium to travel through?

• Electromagnetic waves

• Transverse waves

• Longitudinal waves

• Mechanical waves

What is the formula to calculate wave speed?

• wave speed = wavelength x frequency

• wave speed = wavelength / frequency

• wave speed = amplitude x frequency

• wave speed = speed of light x frequency

If the frequency of a wave increases, what happens to its wavelength?

• Decreases

• Remains the same

• Doubles

• Increases

What is the unit of frequency?

• Watt

• Newton

• Volt

• Hertz (Hz)

Explain the concept of wave reflection.

• Wave reflection is the phenomenon where a wave encounters a boundary or obstacle and bounces back in the opposite direction.

• Wave reflection is the absorption of waves by a medium

• Wave reflection is the process of wave propagation without any interaction

• Wave reflection is the bending of waves around obstacles

How does the speed of a wave change when it moves from a less dense medium to a more dense medium?

• The speed of the wave increases.

• The speed of the wave decreases.

• The speed of the wave becomes zero.

• The speed of the wave remains the same.

What is the relationship between frequency and wavelength of a wave?

• Frequency and wavelength are constant.

• Frequency and wavelength are unrelated.

• Frequency and wavelength are directly proportional.

• Frequency and wavelength are inversely proportional.

Give an example of a mechanical wave.

• Electromagnetic wave

• Sound wave

• Heat wave

• Light wave

How does the amplitude of a wave affect its energy?

• The energy of a wave increases linearly with its amplitude.

• The energy of a wave increases with the square of its amplitude.

• The energy of a wave is not affected by its amplitude.

• The energy of a wave decreases with the square of its amplitude.