What unit is used to measure the frequency of waves?

• Cycles

• Meters per second

• Hertz

• Waves per second

If a wave completes one cycle in 2 seconds, what is its frequency?

• 1 Hertz

• 0.25 Hertz

• 2 Hertz

• 0.5 Hertz

If three waves pass by in 3 seconds, what is their frequency?

• 1 Hertz

• 3 Hertz

• 6 Hertz

• 0.5 Hertz

What is the frequency of a wave that has a half cycle per second?

• 2 Hertz

• 0.5 Hertz

• 1 Hertz

• 0.25 Hertz

What determines the frequency of a wave in a simulation?

• The amplitude

• The medium

• The wave source

• The wavelength

Does increasing the frequency of a wave also increase its speed?

• Yes, always

• No, the medium determines speed

• Yes, but only in a vacuum

• No, only if the amplitude increases

What happens to the wavelength if the wave speed increases?

• It remains the same

• It becomes zero

• It decreases

• It increases

What remains constant when a wave changes medium and speeds up?

• Its frequency

• Its wavelength

• Its speed

• Its amplitude

How are frequency and wavelength related, assuming constant speed?

• Directly proportional

• Inversely proportional

• Not related

• Equal to each other

In the car analogy, why do shorter cars (waves) pass more frequently?

• Because they are smaller

• Because they are faster

• Because they are lighter

• Because they have shorter wavelengths