AnswersPBCSD_Grade_Forgiveness_2003310_Physical Science_S2_2022Introduction to Waves

Introduction to Waves Answers

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1
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What do sound waves and infrared waves have in common, and what makes them different?

A
Both carry energy through space, but sound waves are mechanical and infrared waves are electromagnetic.
B
Both can transfer energy through matter, but sound waves travel through air and infrared waves travel through space.
C
Both can transfer energy through matter, but sound waves can be heard and infrared waves can be seen.
D
Both carry energy through space, but sound waves require matter to pass through and infrared waves do not.
2
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Which game most represents a wave?

A
hide and seek
B
tic-tac-toe
C
poker
D
tipping over dominoes
3

Which refers to any disturbance that carries energy from one place to another?

A
wave
B
trough
C
motion
D
crest
4

Venn diagrams are used for comparing and contrasting topics. The overlapping sections show characteristics that the topics have in common, and the sections that are unique to each topic show the characteristics that apply to only that topic. This Venn diagram is comparing mechanical and electromagnetic waves.

Question illustration
A
“Carry energy through space” and “Follow a pattern”
B
“Carry energy” and “Follow a pattern”
C
“Carry energy through space” and “Can be heard”
D
“Carry energy” and “Can be heard”
5

This chart shows characteristics of three different types of waves.Which statement is best supported by the information in the chart?

Question illustration
A
Wave X and Wave Y are mechanical waves, and Wave Z is an electromagnetic wave.
B
Wave X and Wave Y are electromagnetic waves, and Wave Z is a mechanical wave.
C
Wave X and Wave Z are electromagnetic waves, and Wave Y is a mechanical wave.
D
Wave X and Wave Z are mechanical waves, and Wave Y is an electromagnetic wave.
6

Which is the best analogy of a wave?

A
A wave is like building a ramp.
B
A wave is like shaking a hand.
C
A wave is like water rippling in a pond.
D
A wave is like knocking down a building.
7

Augie created this chart about the two kinds of waves.Which best labels the chart?

Question illustration
A
Title 1 is “Longitudinal Waves,” and Title 2 is “Transverse Waves.”
B
Title 1 is “Transverse Waves,” and Title 2 is “Longitudinal Waves.”
C
Title 1 is “Electromagnetic Waves,” and Title 2 is “Mechanical Waves.”
D
Title 1 is “Mechanical Waves,” and Title 2 is “Electromagnetic Waves.”
8

Which kind of wave would be observed in outer space between planets, where there is very little matter?

A
an electromagnetic wave, such as an x-ray
B
an electromagnetic wave, such as a sound wave
C
a mechanical wave, such as an x-ray
D
a mechanical wave, such as a sound wave
9

Which statement applies to transverse waves?

A
The waves have a trough.
B
Particles move great distances.
C
The waves have alternating compressions and expansions.
D
The energy is transferred parallel to the direction of the wave motion.
10

What is the motion of the particles in this kind of wave?

Question illustration
A
The particles will move up and down over large areas.
B
The particles will move up and down over small areas.
C
The particles will move side to side over small areas.
D
The particles will move side to side over large areas.

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