Wave Properties: Velocity, Frequency, Period

What is the SI unit of frequency?

• Meter

• Hertz

• Second

• Newton

Which symbol is commonly used to represent wave velocity?

• 7 m/s

• 10 m/s

• 2.5 m/s

• 0.4 m/s

A wave travels at a speed of 340 m/s and has a frequency of 170 Hz. What is its wavelength?

• 2 m

• 0.5 m

• 510 m

• 170 m

If the period of a wave is 0.25 seconds, what is its frequency?

• 0.25 Hz

• 2 Hz

• 4 Hz

• 0.04 Hz

Which of the following best describes the period of a wave?

• The number of waves passing a point per second

• The distance between two consecutive crests

• The time taken for one complete cycle

• The speed at which the wave travels

A sound wave has a frequency of 256 Hz and travels at 343 m/s. What is its wavelength?

• 1.34 m

• 0.75 m

• 0.50 m

• 2.00 m

If the wavelength of a wave is doubled while its velocity remains constant, what happens to its frequency?

• It is halved

• It is doubled

• It remains the same

• It becomes zero