Module 9 Lesson 1 Introduction to Waves

True or False: A mechanical wave require a medium

• False

• True

Which of these is an example of an electromagnetic wave

• A towel waving

• Fire light

• Water waves

• Vocal sounds

• Music

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Which is an example of mechanical wave?

• All of the below

• Sunlight

• Radio waves

• Earthquakes

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Which wave moves back and forth in the same direction that the wave travels, or parallel to the wave?

• Longitudinal waves

• True

• Transverse wave

• False

Sasha uses the volume control on her TV to make the sound louder or softer. Which property of waves is Sasha's volume control changing?

• Wave period

• Wave length

• Wave speed

• Amplitude

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Which statement best explains what waves are?

• Wavy lines on a graph

• Light energy that changes into particles of matter

• Disturbances that transfer energy

• circles that move out from a central place

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What property of the wave does A measure?

• Period

• Frequency

• Amplitude

• Wavelength

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Which type of electromagnetic waves have the highest frequency?

• Radio Waves

• Gamma Waves

• Light Waves

• X - rays

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Isabella researched how waves travel through the ground during a earthquake. She drew a diagram of one, called an S wave, moving through Earth's Crust.

Based on her diagram, what kind of wave is an S wave?

• Longitudinal wave

• Sound wave

• Light wave

• Transverse wave

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Visible, infrared, and ultraviolet light are electromagnetic waves that travel from the sun to Earth. The diagram above shows some types of electromagnetic waves.

Which statement best explains what electromagnetic waves are?

• Waves that vibrate through a medium

• Disturbances in the atmosphere of space

• Disturbances in electric and magnetic fields

• Slow - moving waves

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