Introduction to Waves

Question 1

What are examples of devices that use electromagnetic waves? Check all that apply.FM radiosmicrowavesTV remote controlsalarm clocksX-rays

Revolt · Accepted Answer

FM radios; microwaves; TV remote controls; X-rays

Question 2

Which are examples of transverse waves? Check all that apply.earthquake P-wavesearthquake S-wavesradio waves soundvisible lightX-rays

Revolt · Accepted Answer

earthquake S-waves; radio waves; visible light; X-rays

Question 3

A student is performing an experiment comparing sound and light waves. The student gathers the following data.

Revolt · Accepted Answer

Tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

Question 4

What describes the wave used? Check all that apply.

Revolt · Accepted Answer

transverse; electromagnetic

Question 5

Two waves are shown. Each wave has the same frequency and velocity. However, Wave B carries more energy.

Revolt · Accepted Answer

amplitude

Question 6

A sound wave travels through water. What best describes the direction of the water particles?

Revolt · Accepted Answer

The water particles move in the same direction as the vibrating source of the sound wave.

Question 7

A marching band is practicing. The band director sees the drum major hit a drum. How far away is the director if he hears the drumbeat in 0.40 seconds? The speed of sound is 330 m/s.

Revolt · Accepted Answer

132 m

Question 8

Ten students stand in a circle and are told to make a transverse wave. What best describes the motion of the students?

Revolt · Accepted Answer

One at a time, each student lifts his or her hands up and then down.

Question 9

What is transmitted by all waves?

Revolt · Accepted Answer

energy

Question 10

How are electromagnetic waves different than all other waves?

Revolt · Accepted Answer

They can travel through space.

Introduction to Waves Answers

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