Wave and Light Test Review

Question 1

Sound waves travel fastest through ________

Answer 1

solids

Question 2

The number of waves that pass a given point in a second is known as a wave’s ________________

Answer 2

frequency

Question 3

A wave is a pattern of motion that transports _______

Answer 3

energy

Question 4

The colors we see depend on the wavelength and frequency of the light. True or False

Answer 4

True

Question 5

Objects that absorb certain wavelengths of light and transmit other wavelengths are called __________ objects.

Answer 5

translucent

Question 6

Which of the following forms of electromagnetic radiation has the highest frequency?

Answer 6

gamma rays

Question 7

Which of the following forms of electromagnetic radiation has the longest wavelength?

Answer 7

radio waves

Question 8

Most sound waves travel through air making ______________ and rarefaction

Answer 8

compression

Question 9

Higher frequency = _________ pitch

Answer 9

higher

Question 10

Ultraviolet radiation is a form of electromagnetic radiation that has a longer wavelength than visible light and is therefore not detectable by the human eye. True or False

Answer 10

False - ultraviolet radiation has shorter wavelengths than visible

Question 11

The relationship between wavelength and frequency is _________ proportional.

Answer 11

inversely

Question 12

When a sound source is moving towards you, you hear a __________ frequency sound

Answer 12

higher

Question 13

Electromagnetic radiation is organized by how much ________ it carries.

Answer 13

energy

Question 14

Objects that do not allow light to pass through them are called _________ objects.

Answer 14

opaque

Question 15

Humans cannot see infrared light with the naked eye, and can feel infrared’s energy in the form of heat on their skin. True or False

Answer 15

True - infrared light does not fall in the visible light spectrum, therefore can only be felt, but not seen

Question 16

Two objects of the same size and material are left in direct sunlight for 30 minutes. After 30 minutes, which object would have increased temperature the most? White or dark cloth

Answer 16

Dark Cloth - the dark material does not allow any light to pass through it, therefore absorbing all the energy making the temperature increase

Question 17

When an object appears green, which light is reflected? Which light is absorbed?

Answer 17

Green is absorbed, Roy Biv is absorbed

Question 18

A waves velocity will __________ (increase or decrease) as it moves from a less dense medium to a more dense medium

Answer 18

decrease

Question 19

Which answer lists the correct order of the visible light spectrum from the lowest energy to the highest energy?

Answer 19

Roy G Biv

Question 20

Electromagnetic waves are ___________ to mechanical waves because they _____ need a medium to travel through.

Answer 20

not similar, don’t

Question 21

How do electromagnetic waves differ from mechanical waves?

Answer 21

electromagnetic waves do not need a medium to travel through, mechanical do

Question 22

sound waves cannot travel through which of these: paper, water, hydrogen, outer space

Answer 22

outer space

Question 23

Waves transfer ___________

Answer 23

energy

Question 24

At which temperature does sound move the fastest?

Answer 24

sound moves faster in higher temperatures and slowest in lower temperatures

Question 25

how can you tell how much energy a wave has? What does least energy look like? What does more energy look like?

Answer 25

You can tell the amount of energy from the length of the wavelength, the longer the wavelength, the less the energy, the shorter the wavelength, the more the energy.

Question 26

As wavelength increases, frequency ___________

Answer 26

decreases