Waves

Question 1

What is a disturbance that transfers energy through matter or space?

Answer 1

wave

Question 2

Energy from ______________ makes waves in the oceans.

Answer 2

the wind

Question 3

What is the highest part of the wave?

Answer 3

crest

Question 4

What is the lowest part of the wave?

Answer 4

trough

Question 5

What is the distance from one wave’s crest to the next wave’s crest?

Answer 5

wave length

Question 6

What is the vertical distance from a wave’s through to its crest?

Answer 6

wave height

Question 7

What word means to move back and forth quickly?

Answer 7

vibrate

Question 8

T or F: Sound waves must move through matter.

Answer 8

True

Question 9

What is matter?

Answer 9

Anything that takes up space.

Question 10

What are the three states of matter?

Answer 10

Liquid, solid, gas

Question 11

Name the order of the states of matter in which sound moves fastest and farthest:

Answer 11

1. Solids
2. Liquids
3. Gas

Question 12

T or F: Whales can detect sounds hundreds, maybe thousands of miles away.

Answer 12

True

Question 13

What is the way that humans perceive loudness of sound?

Answer 13

volume

Question 14

What word do we use to describe how high or low sound is?

Answer 14

pitch

Question 15

What happens to pitch as the waves get faster?

Answer 15

The pitch gets higher.

Question 16

What happens to pitch as the waves get slower?

Answer 16

The pitch gets lower.

Question 17

What is happening when the wave height of a sound wave is getting bigger?

Answer 17

The volume is getting louder.

Question 18

What is happening when the wave height of a sound wave is getting smaller?

Answer 18

The volume is getting softer.

Question 19

T or F: If the conditions are right, sound waves can move about three football fields in one second.

Answer 19

True

Question 20

T or F: Sound moves faster in warmer air and slower in cooler air.

Answer 20

True

Question 21

T or F: Sound moves more quickly in gas than liquid.

Answer 21

False

Question 22

T or F: Sound is a form of energy.

Answer 22

True

Question 23

What property of sound causes glass to shatter?

Answer 23

pitch

Question 24

What do sharks and spiders have all over their body to sense sound?

Answer 24

Hairs

Question 25

What animal can hear sounds that are too high for people to hear.

Answer 25

dogs

Question 26

What animal can hear sounds that are too low for humans to hear.

Answer 26

elephants

Question 27

What animal has the greatest sense of hearing?

Answer 27

wax moth

Question 28

Like sound, light is a form of energy that travels in ____________.

Answer 28

waves

Question 29

T or F: Light is a form of energy.

Answer 29

True

Question 30

What's one big difference between the way light travels and sound travels?

Answer 30

Light doesn't have to travel through matter, it can travel in empty space.

Question 31

What is another name for light waves?

Answer 31

radiation

Question 32

Why can the moon be so bright?

Answer 32

It is reflecting the sun's light.

Question 32

When there is a lightning storm, why do you see the lightning before you hear the thunder?

Answer 32

Light waves move faster than sound waves.

Question 33

Objects that allow light to pass through them are called _____________-.

Answer 33

transparent

Question 34

Objects that block light are called ____________.

Answer 34

opaque

Question 35

What do opaque objects cast when light hits them?

Answer 35

shadow

Question 36

What are objects that let some, but not all, light pass through them?

Answer 36

translucent

Question 37

T or F: Translucent objects block some light and cast slight shadows.

Answer 37

True

Question 38

What color has the fastest waves?

Answer 38

violet

Question 39

What is the height of a wave called?

Answer 39

wave height or amplitude

Question 40

Light waves with higher amplitudes are ____________.

Answer 40

brighter

Question 41

What kind of light causes sunburns?

Answer 41

Ultraviolet Light

Question 42

Which light has the longest wavelength?

Answer 42

Radio waves

Question 43

True or false: Infrared light is invisible to humans, but cameras can detect it.

Answer 43

True

Question 44

Which light is used in remote controls?

Answer 44

Infrared light

Question 45

True or false: X-rays can be harmful in excess.

Answer 45

True

Question 46

What is the shortest wavelength light?

Answer 46

Gamma rays

Question 47

Which light is used in GPS technology?

Answer 47

Microwaves

Question 48

What can infrared cameras detect?

Answer 48

Warm and cool objects

Question 49

Which light is used in radiation therapy?

Answer 49

Gamma rays

Question 50

What is the purpose of radar technology?

Answer 50

Track objects

Question 51

T or F: Infrared light heats matter.

Answer 51

True