4F - 2. Wave Speed

What is the unit of measurement for wave speed?

• Miles per hour (mph)

• Centimeters per second (cm/s)

• Metres per second (m/s)

• Kilometers per hour (km/h)

How fast do sound waves travel through air?

• 500 m/s

• 400 m/s

• 330 m/s

• 300 m/s

What is the wavelength of waves if 5 waves fit into a 60 m pier?

• 12 m

• 20 m

• 10 m

• 15 m

What is the formula that connects speed, frequency, and wavelength?

• v = fλ

• v = λ/f

• v = f + λ

• v = f - λ

What happens to the frequency of waves when they change speed in different materials?

• It remains unchanged

• It decreases

• It doubles

• It increases

What type of waves are sound waves classified as?

• Surface waves

• Longitudinal waves

• Electromagnetic waves

• Transverse waves

What is the relationship between frequency and period?

• Frequency = Period × Wavelength

• Frequency = Wavelength/Time

• Frequency = 1/Period

• Frequency = Period × Time

What is the speed of sound in air approximately?

• 150 m/s

• 760 m/s

• 330 m/s

• 1000 m/s

What is the effect of temperature on the speed of sound?

• It has no effect

• It slows down

• It speeds up

• It doubles the speed

What is the term for sound waves that are above the range of human hearing?

• Subsonic

• Hypersonic

• Ultrasonic

• Infrasonic