Waves Lesson

Chapter 15: Waves

Waves transfer energy and interact in predictable ways.

https://phet.colorado.edu/sims/html/wave-on-a-string/latest/wave-on-a-string_en.html

https://phet.colorado.edu/sims/html/waves-intro/latest/waves-intro_en.html

Multiple Choice

Describe how forces start waves.

Forces start a _____ that travels through a medium.

• disturbance

• energy

• wave

Multiple Choice

Explain how a wave can travel through a medium and yet the medium stays in place. Use the term energy in your answer.

Energy travels through the _____, leaving the ______ in place.

• matter, medium

• medium, matter

• wave, medium

• medium, wave

Multiple Choice

Describe two ways in which waves travel, and give an example of each.

______ waves travel at right angles to the disturbance. _____ waves travel in the same direction as the disturbance. Examples are _____ waves and ______ waves.

• longitudinal, transverse, rope, water

• earthquake, ocean, sound, transverse

• transverse, longitudinal, ocean, sound

Multiple Choice

Does water moving through a hose qualify as a wave? Explain why or why not.

• yes, because in a wave, the medium moves, but not the disturbance.

• yes, because in a wave, the disturbance moves, but the medium does not.

• no, because in a wave, the medium moves, but not the disturbance.

• no, because in a wave, the disturbance moves, but the medium does not.

Multiple Choice

Suppose you drop a cookie crumb in your milk. At once, you see ripples spreading across the surface of the milk. What type of waves are these? What is the disturbance?

• transverse waves, the falling crumb

• longitudinal waves, the falling crumb

• transverse waves, your milk

• longitudinal waves, your milk