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light,sound and changes of state

Total questions: 38

Worksheet time: 20mins

Name
Class
Date
1.

When an object vibrates, it produces...

a)

Sound waves.

b)

Light energy.

c)

Heat.

2.

How do we perceive large vibrations?

a)

As loud sounds.

b)

As quiet sounds.

3.

Mark the characteristics of the sound.

a)

It travels in a straght line.

b)

It travels in waves.

c)

It is faster than light.

d)

It travels quickly, but not as fast as light.

4.

How does the light travel?

a)

In waves.

b)

In straight lines, called rays.

c)

Light doesn't travel.

5.

Mark the natural heat sources.

a)

Sun.

b)

Hairdryer.

c)

Fire.

d)

Oven.

6.

Is when a liquid changes to gas.

a)

Melting.

b)

Evaporation.

c)

Freezing.

7.

Is when a solid changes to liquid.

a)

Freezing.

b)

Evaporation.

c)

Melting.

8.

It can change the state of matter.

a)

Light.

b)

Sound.

c)

Heat.

9.
What color is sunlight?
a)
 yellow
b)
orange
c)
white 
d)
red
10.
The only type of energy waves you can see are 
a)
xrays
b)
light waves
c)
microwaves
d)
radio waves
11.
Laser beams are more powerful than regular light because 
a)
they can travel long distances without getting dim.
b)
all light waves are red.
c)
they do not travel in straight lines.  
d)
they have bright colors.
12.
A red flower is red because it
a)
 can not produce any other color but red
b)
reflects every color of light except red
c)
absorbs every color of light except red
d)
refracts ever color in the rainbow
13.
A rainbow occurs when 
a)
The sun produces colored light instead of white light
b)
The sun shines through water droplets, breaking the white light into the colors of the spectrum. 
c)
Clouds reflect all of the colors in the visible spectrum
d)
The sun isn't shining
14.
Which material is translucent?
a)
a piece of wood. 
b)
 a window
c)
tissue paper
d)
my cat
15.
 Why are some sounds louder than others
a)
They are noise, not music.
b)
They are made with more energy.
c)
They are moving slower.
d)
They result from slower vibrations.
16.
In which of these materials would sound travel fastest?
a)
air 
b)
wood 
c)
water
d)
gases
17.
All sound is made when something causes matter to
a)
change its state
b)
transform into an electrical signal
c)
vibrate
d)
loose energy
18.
 Another word for an unpleasant sound is 
a)
rock and roll
b)
noise
c)
stereo set
d)
volume
19.
The shape of your outer ear helps it to
a)
move sound waves inside your head
b)
amplify sound 
c)
make the sounds softer
d)
does not affect your hearing
20.
To amplify sound is to make it 
a)
softer
b)
quicker 
c)
louder
d)
faster
21.
Sound is a kind of _____that you can’t see. 
a)
energy
b)
pitch
c)
volume
d)
nerve
22.

Energy cannot be created or destroyed.

a)

True

b)

False

23.

Energy cannot be transformed from one form

to another.

a)

True

b)

False

24.

Gertrude is observing liquids at a birthday party. Some are sweet, some are hot, and some are sticky. If she could look at the particles of the liquids, which statement would NOT be true?

a)

The particles are far apart and moving fast, with no shape.

b)

The particles may touch but they can flow past each other.

c)

The particles are in close contact and cannot move from their places.

d)

The particles have no arrangement.

25.

Herbie notices that a puddle near his driveway was gone the next morning. The best description of what happened to the puddle is

a)

It evaporated

b)

It sublimated.

c)

It boiled.

d)

It froze.

26.

The change of state from a solid to a liquid is called

a)

freezing

b)

melting

c)

boiling

d)

evaporating

27.

The change of state from a liquid to a gas is called

a)

boiling

b)

evaporation

c)

vaporization

d)

sublmiation

28.

The change of state from a solid to a gas is called

a)

freezing

b)

melting

c)

boiling

d)

sublimation

29.
  1. How does water change state when it evaporates?
a)

Liquid water turns into water vapor.

b)

Solid water turns into liquid water.

c)

Water vapor turns into liquid water.

d)

Liquid water turns into solid water.

30.

What is the outcome (happens) when you mix sugar and salt?

a)

A liquid forms

b)

A solution forms

c)

A physical change happens

d)

A chemical change happens

31.

The reverse of vaporization is...

a)

Condensation

b)

Sublimation

c)

Deposition

d)

Alienation

32.

Condensation occurs when...

a)

Liquid is condensed into a solid.

b)

Water vapor becomes snow at high altitudes.

c)

As a liquid is heated to boiling.

d)

Vapor is cooled on a surface.

33.
_________materials allow some light to pass through, but some light is scattered.
a)
transparent
b)
translucent
c)
opaque
d)
concave
34.
______materials do not allow light to pass through.
a)
opaque
b)
transparent
c)
translucent
d)
convex
35.
_________materials allow light to pass straight through
a)
translucent
b)
transparent
c)
convex
d)
opaque
36.
How loud or quiet a sound is
a)
pitch
b)
frequency
c)
spectrum
d)
volume
37.
a)
reflection
b)
refraction
38.
a)
reflection
b)
refraction

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