8.27.R - Quiz: The Parts of Light and How Sound Is Used

Question 1

What do we call the radiation that allows us to see through the skin and visualize the bones?
X-rays
microwaves
gamma rays
ultraviolet rays

Answer 1

X-rays

Question 2

What area of the electromagnetic radiation spectrum tans your skin?
gamma rays
radio waves
ultraviolet rays
microwaves

Answer 2

ultraviolet rays

Question 3

Whose work suggested that we should view light as a train of particles?
Boyle
Newton
Einstein
Hooke

Answer 3

Einstein

Question 4

What is a sign of the promise God made in Genesis 9:12–15?
olive branch
clouds
sun
rainbow
rain
dove

Answer 4

rainbow

Question 5

What do we call the vividness of a color?
diffraction
saturation
scattering
luminance

Answer 5

saturation

Question 6

If you are building a house, which type of windows would you install in your bathroom so that you can have lots of light but privacy as well?
opaque
no windows
translucent
transparent

Answer 6

translucent

Question 7

Which lighting source became widely used in household and commercial lighting due to its low manufacturing costs?
fluorescent
neon
incandescent
laser

Answer 7

incandescent

Question 8

What kind of gas is inside a neon sign?
oxygen
carbon dioxide
inert
chlorine
hydrogen

Answer 8

inert

Question 9

What do we call the change in direction of a light wave as the wave moves around an obstacle or passes through a narrow opening?
reflection
diffraction
destructive interference
refraction

Answer 9

diffraction

Question 10

_________ light is unique in that it vibrates mostly in one direction.
Reflected
Diffracted
Refracted
Polarized

Answer 10

Polarized

Question 11

The maximum distance that the particles of a light wave’s medium vibrate from their rest position is called ___________.
wavelength
interference
amplitude
refraction

Answer 11

amplitude

Question 12

What is the maximum loudness—or decibels—that a human can hear without having pain?
0 dB
140 dB
120 dB
100 dB

Answer 12

120 dB

Question 13

Which of these mediums will sound travel through the fastest?
iron
outer space
water
air

Answer 13

iron

Question 14

We cannot hear sound waves from the explosions on the sun because _________________.
those explosions make no sound
sound can’t travel through a vacuum
sound waves can’t get through the Earth’s atmosphere
the waves aren’t strong enough

Answer 14

sound can’t travel through a vacuum

Question 15

When the source of a sound, such as a car, is moving, the sound waves ahead of the source are _______________.
bunching together
gradually becoming further apart
the same on all sides
at alternating distances
spreading apart

Answer 15

bunching together

Question 16

Which animal can use echolocation to find its food?
blue bird
blue crab
beluga whale
scorpion

Answer 16

beluga whale

Question 17

One practical use of echolocation is to measure the depth of the oceans. The device that is used to transmit the sound waves to the ocean floor is called _____________.
sonar
sonic boom
radar
electrolysis
electromagnetic wave machine

Answer 17

sonar

Question 18

We spend our lives in visible light without risks to our health, yet exposure to UV waves in sunlight can cause skin cancer. What is the BEST explanation for this?

UV waves travel faster than visible light and have more energy
UV waves are longer and carry more energy
UV waves have a lower frequency and carry more energy
UV waves are higher frequency and carry more energy

Answer 18

UV waves are higher frequency and carry more energy

Question 19

In the visible spectrum, red light has the lowest frequency and violet light has the highest.

List the following colors in order of increasing energy.

green
blue
yellow
orange

yellow, orange, blue, green
green, blue, orange, yellow
orange, yellow, green, blue
blue, green, yellow, orange

Answer 19

orange, yellow, green, blue

Question 20

The wavelengths of radio waves are much _______________ than the wavelengths of microwaves. Therefore, radio waves carry much __________ energy than microwaves.

longer; more
shorter; less
longer; less
shorter; more

Answer 20

longer; less

Question 21

Why is light important? Please respond in 1–2 complete sentences using your best grammar.

Answer 21

Your Answer:
Light is important because we could not see God’s creation of color without it.

Question 22

What are the characteristics of sound? Please respond in 1–2 complete sentences using your best grammar.

Answer 22

Your Answer:
Some characteristics of sound include how it can travel through a medium, and without this medium, it would be like we were in space where there is no sound.