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refraction of waves

Total questions: 35

Worksheet time: 35mins

Name
Class
Date
1.
Why would a wave change direction?
a)
Because it kept traveling through the same medium
b)
Because it went from one medium to another
c)
the amplitude was too large
d)
the frequency was too small
2.
a)
Reflection
b)
Refraction
3.
a)
Reflection
b)
Refraction
4.
Light bending as it passes through a rain drop is an example of...
a)
Refraction
b)
Reflection
5.
A student placed a pencil in a cup of water.  The pencil appears broken because light-
a)
always travels in a straight line
b)
bends when it passes through water
c)
makes the water in the glass evaporate
d)
reflects the pencil on the water's surface
6.
The bending of a wave as it passes at an angle from one medium to another is called?
a)
Convex Lens
b)
Refraction
c)
Concave Lens
7.
Refraction is the bending of a wave disturbance as it passes from one _________ into another.
a)
glass
b)
medium
c)
area
d)
boundary
8.
When light/waves move from one medium to another, change in ____ can be observed.
a)
speed, direction, frequency
b)
speed, direction
c)
frequency
d)
amplitude
9.

What is it called when light bends as it moves from one substance to another?

a)

Absorption

b)

Reflection

c)

Refraction

d)

Incidence

10.

Light bends as it passes through a lens. This is called what?

a)

Reflection

b)

Diffraction

c)

Refraction

d)

Dilation

11.

When light waves move from passing through air to passing through a glass lens when happens to them?

a)

They slow down and change direction

b)

They speed up and change direction

c)

They maintain the same speed and change direction

d)

They maintain their same speed and direction

12.
When a water wave travels from deep to shallow water, it travels ____ and has a ____ wavelength.
a)
slower, shorter
b)
slower, longer
c)
faster, shorter
d)
faster, longer
13.
If the angle of incidence increases, the angle of refraction ________.
a)
Increases
b)
Decreases
14.

When light waves move from passing through air to passing through a glass lens when happens to them?

a)

They slow down and change direction

b)

They speed up and change direction

c)

They maintain the same speed and change direction

d)

They maintain their same speed and direction

15.

On the diagram A is :

a)

The angle of incidence

b)

The reflection ray

c)

The incidence ray

d)

The refraction ray

16.

On the diagram, B is:

a)

The refraction ray

b)

The normal

c)

The angle of incidence

d)

The incidence ray

17.

On the diagram, D is:

a)

The reflected ray

b)

The incidence ray

c)

The normal

d)

The refracted ray

18.

What would you call this?

a)

Reflection

b)

Diffraction

c)

Refraction

d)

Friction

19.

What would you call this?

a)

Refraction

b)

Diffraction

c)

Bends

d)

Reflection

20.

The bouncing back of light waves off of a surface is...

a)

Reflection

b)

Refraction

c)

Light

d)

Lens

21.

Light travels...

a)

around corners

b)

in a straight line

22.

A mirror _________ light.

a)

absorbs

b)

reflects

c)

refracts

23.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
24.

1) Refraction happens when light______

a)

bends as it enters a new medium

b)

bounces back when it hits a surface

c)

by a substance

25.

A light ray is incident from water to air. Which of the refracted rays is correct?

a)

A

b)

B

c)

C

d)

D

26.

Three students stand 2 m apart in front of a plane mirror which is 3 m long.


Student Y is standing opposite the mid-point of the mirror.


How many students can see the images of the other two?

a)

0

b)

1

c)

2

d)

3

27.

The line 90 degress through the refracting or reflecting surface is called?

a)

Medium

b)

Normal

c)

Incidence

d)

Reflection

28.
The velocity of light in vacuum is _______ m/s
a)
3x108
b)
3x1012
c)
3x106
d)
3x1010
29.
Swimming pools and the ocean look shallower than they really are due to:
a)
reflection 
b)
dispersion
c)
refraction
d)
total internal reflection
30.

Light refracts when:

a)

It changes speed

b)

It changes from a particle to a wave

c)

Its density changes

d)

It encounters a solid object

31.
a)
Refraction
b)
Reflection
32.
a)
Reflection
b)
Refraction
33.
Why would a wave change direction?
a)
Because it kept traveling through the same medium
b)
Because it went from one medium to another
c)
the amplitude was too large
d)
the frequency was too small
34.

Waves refract as they pass from one medium into another.


Which best describes a beam of light moving from a less dense medium into a more dense medium?

a)

Speed decreases. Wavelength decreases.

Frequency remains constant.

b)

Speed decreases. Wavelength increases.

Frequency increases.

c)

Speed decreases. Wavelength decreases.

Frequency increases.

d)

Speed decreases. Wavelength increases.

Frequency decreases.

35.

Waves refract as they pass from one medium into another.


Which best describes a beam of light moving from a denser medium into a less dense medium?

a)

Speed increases. Wavelength increases.

Frequency remains constant.

b)

Speed increases. Wavelength increases.

Frequency increases.

c)

Speed increases. Wavelength decreases.

Frequency increases.

d)

Speed increases. Wavelength increases.

Frequency decreases.