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light reflaction

Total questions: 20

Worksheet time: 18mins

Name
Class
Date
1.
Opaque means...
a)
No light passes through it
b)
All light passes through it
c)
Some light passes through it
2.
When a rainbow is formed outside naturally, what causes the light to refract?
a)
A. Small raindrops
b)
B. Sunlight rays
c)
C. Tiny mirrors
d)
D. Glass prisms
3.
What is volume?
a)
how high or low a sound is
b)
the loudness or softness of a sound
c)
the number of vibrations per second
d)
vibrations
4.
Measure of how high or low a sound is
a)
amplitude
b)
compression
c)
speed of sound
d)
pitch
5.
Sound is a form of? 
a)
energy
b)
pitch
c)
volume
6.
What is vibration?
a)
how loud a sound is
b)
the back and forth movement of matter
c)
how high or low a sound is
d)
the loudness or softness of a sound
7.
Sound is caused by? 
a)
force
b)
vibrations
c)
instruments
8.
What is frequency?
a)
the number of vibrations per second
b)
how high or low a sound is
c)
the loudness or softness of a sound
d)
the back and forth movement of matter
9.
White light is made up of:
a)
red, yellow, and blue
b)
no colors
c)
all colors
d)
red, green, and blue
10.

Why does the straw appear to be bent?

a)

light is reflected

b)

light is absorbed

c)

light is turned

d)

light is refracted

11.

Why doesn’t the surface of a wooden boat reflect light as the surface of water does?

a)

Because the boat's surface is rough and absorbs more light.

b)

Because the surface of the boat is red, not blue.

c)

Because the boat is not a natural object like the water is.

d)

Because the boat is on top of the water's surface.

12.

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

a)

Absorption

b)

Reflection

c)

Refraction

d)

Incidence

13.

What type of wavelengths do ultraviolet rays have?

a)

Short

b)

Long

c)

Alternating short and long

d)

None

14.

What can you use to see all the different colors in white light?

a)

A flashlight

b)

A shadow

c)

A camera

d)

A prism

15.

What is white light?

a)

The type of light that is found in x-rays

b)

The type of light given off by the sun and light bulbs

c)

The type of light that is used in microwave ovens

d)

The type of light that makes up radio waves

16.

What causes the formation of a rainbow?

a)

Light travels in a straight line

b)

Reflection of light

c)

Refraction of light

d)

Light in bounced in two different mediums

17.

Diagram shows the condition of a spoon in a glass of water.

What can be observed about the spoon?

a)

The spoon looks bent.

b)

The water is clearer.

c)

The water level rises.

d)

Light is refracted.

18.

When does the light is refracted?

a)

When light travels in a straight line

b)

When light is bounced

c)

When light travels in two different mediums

d)

When light cannot pass through an opaque object

19.

Diagram shows a phenomenon occurs when the spotlight is directed onto a mirror surface. What is the principle of light shown in the situation?

a)

Light travels in a straight line

b)

Refraction of light

c)

Reflection of light

d)

Light travels in parallel

20.

If the angle of incidence in the diagram is 50 degrees, which statement is true?

a)

The angle of reflection is 40 degrees because is is measured from the normal line, which is 90 degrees

b)

The angle of reflection is 50 degrees because it is equal to the angle of incidence.

c)

The angle of reflection is 60 degrees, because it is greater than the angle of incidence.

d)

The angle of refraction is 50 degrees, because it is equal to the angle of incidence.