Waves Unit Test

Which best describes the relationship between waves and matter?

• All waves require matter in order to transfer energy.
• Mechanical waves require matter to transfer energy, but electromagnetic waves do not.
• Electromagnetic waves require matter to transfer energy, but mechanical waves do not.
• All waves transfer matter using energy.

Which of the following pictures is depicting a transverse wave?

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The __________ of a wave is how many wavelengths pass a fixed point each second.

• Amplitude
• Wavelength
• Frequency
• Speed

Which wave has the highest frequency?

• Wave A
• Wave B
• Wave C

Which of the following would be true if a wave's frequency increased?

• the wave's amplitude would be lower
• the wave's amplitude would be higher
• the wave's wavelength would shorten
• the wave's wavelength would lengthen

How are these two waves different?

• The amplitude of Wave 2 is twice the amplitude of Wave 1.
• The wavelength of Wave 2 is twice the wavelength of Wave 1.
• The frequency of Wave 2 is twice the frequency of Wave 1.

Which statements is correct about the speed of sound waves?

• Sound waves travel fastest through solids because the particles are more tightly packed together.
• Sound waves travel fastest through liquids because the particles are touching but sliding past each other.
• Sound waves travel fastest through gases because the particles have more space around them for the wave to spread out.
• Sound waves travel the same speed through all states of matter.

Which of the following statements are true about sound waves?

• they are longitudinal waves
• they are transverse waves
• the waves' motions happen in the same direction that the wave travels
• the waves' motions happen perpendicular to the direction that the wave travels
• as a sound wave passes through a medium, particles in the air bunch together and spread out, creating areas of high and low pressure

How does a sound wave begin?

• vibration of a medium
• transfer of heat
• in our ears
• in empty space

Which of the following waves would be the loudest and why?

• Wave A is the loudest because it has the longest wavelength
• Wave B is the loudest because it has the highest amplitude
• Wave C is the loudest because it has the shortest wavelength
• Wave D is the loudest because it has the lowest amplitude