Question

14. Why are infrared rays an example of transverse waves? (1 point)
Responses

Particles in the medium vibrate back and forth.
Particles in the medium vibrate back and forth.

Particles in the medium travel toward the wave.
Particles in the medium travel toward the wave.

Particles in the medium vibrate up and down at right angles.
Particles in the medium vibrate up and down at right angles.

Particles in the medium move in circular motions.
Particles in the medium move in circular motions.
Question 15
15. Why would a person feel cooler wearing a white shirt rather than a black shirt on a sunny day? (1 point)
Responses

Light would be mostly reflected rather than absorbed or transmitted.
Light would be mostly reflected rather than absorbed or transmitted.

Light would be mostly absorbed or reflected rather than transmitted.
Light would be mostly absorbed or reflected rather than transmitted.

Light would be mostly absorbed or transmitted rather than reflected.
Light would be mostly absorbed or transmitted rather than reflected.

Light would be mostly transmitted rather than absorbed or reflected.
Light would be mostly transmitted rather than absorbed or reflected.
Question 16
16. Use the information below to answer the question:

A student performs an experiment by ringing a bell in the air and then in a pool and measuring the time it takes for a friend to hear the bell.

Which of the following is the best hypothesis for the experiment?

(1 point)
Responses

Sound will travel faster through air than water because air is less dense.
Sound will travel faster through air than water because air is less dense.

Sound will travel faster through water than air because water particles are more closely packed.
Sound will travel faster through water than air because water particles are more closely packed.

Sound will travel at the same speed in both air and water because the bell produces the same sound.
Sound will travel at the same speed in both air and water because the bell produces the same sound.

Sound cannot travel through water because it is a liquid.
Sound cannot travel through water because it is a liquid.
Question 17
17. Use the information below to answer the question:

A student performs an experiment by ringing a bell in the air and then in a pool and measuring the time it takes for a friend to hear the bell.

If the experiment is repeated with the bell in a solid medium, such as a metal rod, what would likely happen to the speed of sound?

(1 point)
Responses

The sound would travel slower than in air and water.
The sound would travel slower than in air and water.

The sound would travel at the same speed as in water.
The sound would travel at the same speed as in water.

The sound would not travel through a solid.
The sound would not travel through a solid.

The sound would travel faster than in air and water.

Answer 1

14. Particles in the medium vibrate up and down at right angles.

15. Light would be mostly reflected rather than absorbed or transmitted.

16. Sound will travel faster through water than air because water particles are more closely packed.

17. The sound would travel faster than in air and water.