Introduction to Waves Answers

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3

Which game most represents a wave?

A
hide and seek
B
tic-tac-toe
C
poker
D
tipping over dominoes
4

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.
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

Jenny is trying to describe a wave. Which example would be the best description?

A
a toy car hitting a wall and bouncing back
B
a toy car rear-ending a toy car that then rear-ends another toy car
C
two toy cars driving parallel to each other at the same speed
D
two toy cars driving away from each other at the same speed
7

Brody and Ethel are arguing about waves. Brody says that waving his hand back and forth is a scientific wave. Ethel says that it is not. Which statement best describes who is correct?

A
Brody is correct because the wave involves an input of energy.
B
Ethel is correct because energy is not carried from one place to another.
C
Brody is correct because the pattern repeats.
D
Ethel is correct because the motion has no pattern.
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 is a characteristic of all waves?

A
All waves carry energy.
B
All waves move through space.
C
All waves move through matter, from particle to particle.
D
All waves transfer energy perpendicular to the direction of wave motion.

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