IGCSE Physics Revision b

The measure of cycles per second is called the ____________.

• period
• frequency
• wavelength
• velocity

The SI unit used to measure the frequency of a wave is _____________.

• hertz
• seconds
• meters
• decibels

The amount of time for one wave cycle to occur is called the ____________.

• wavelength
• trough
• period
• frequency

A wave can bend and change speed, as it passes through a boundary from one medium to another. This is called __________.

• refraction
• reflection
• diffraction
• absorption

The musical term "pitch" is directly associated with which wave property?

• wavelength
• amplitude
• frequency
• period

The loudness or volume of sound is related to which wave property?

• wavelength
• frequency
• amplitude
• speed

What is the approximate speed of sound in normal air?

• 34 m/s
• 340 m/s
• 30,000 m/s
• 300 million m/s

The product of frequency and wavelength is always equal to the wave's ______________.

• amplitude
• velocity
• period
• color

The lowest point of a transverse wave is called the _________.

• crest
• trough
• amplitude
• rest position

The amplitude measures the distance between the:

• crest and next crest
• trough and next trough
• crest and trough
• rest position and crest