Waves Unit

The diagram below shows two waves. Which statement BEST compares the waves?

• Wave 1 has a greater amplitude than Wave 2.

• Wave 1 has taller crests than Wave 2.

• Wave 2 as a higher frequency than Wave 1

• Wave 2 has a greater wavelength than Wave 1.

Which of these statements is NOT true about both mechanical and electromagnetic waves?

• Both types of waves carry energy.

• Both types of waves need a medium to travel.

• Both types of waves can have a variety of frequencies.

• Both types of waves can be described by their wavelengths.

Which number in the diagram represents a wavelength?

• 1

• 2

• 3

• 4

Which of them following is a MAIN factor that affects the speed of a wave?

• the pitch of sound.

• the loudness of sound.

• the amplitude of the wave.

• the properties of the medium

Which of the following changes in wave properties is a result of an increase in wavelength?

• higher crests

• reduced height

• lower frequency

• faster movement.

Which change in wave properties increases wave amplitude?

• greater length

• increased energy

• decreased frequency

• shortened wave length.

By what process is energy transferred when sound waves travel through air?

• absorption of sound waves by surfaces

• vibrations of perpendicular electric and magnetic fields

• flow of air currents away from the sound source to the listener

• vibration of air particles parallel to the direction of the sound wave.

Wave produced by different sources are shown in the data table.

Which statement BEST describes the relationship among waves?

• All transfer energy.

• All are the same frequency.

• All have equal wavelengths.

• All travel the same speed.

The diagram shows two different wave changes.

Which wave characteristic changed in both instances?

• ampltude

• frequency

• speed

• wavelength

One could conclude that sound is transmitted fastest in

• solids

• liquids

• gases

• a vacuum