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WorksheetsUnit 2 Practice Questions set 2
Total questions: 20
Worksheet time: 24mins
Name
Class
Date
1.
Humans often use fans to stay cool.The rotation of the fan blades is an example of what type of energy?
a)
electrical
b)
sound
c)
thermal
d)
mechanical
2.
What type of energy source does a solar panel use?
a)
sound
b)
mechanical
c)
thermal
d)
light
3.
Energy that is related to position or motion
a)
Thermal Energy
b)
Mechanical Energy
c)
Electrical Energy
4.
A girl writing with a pen is an example of what type of energy?
a)
sound
b)
thermal
c)
mechanical
d)
electrical
5.
Cooks food and warms our homes. Is an example what kind of energy?
a)
Thermal
b)
Light
c)
Electrical
6.
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
7.
a)
Reflection
b)
Refraction
8.
Why does the lower part of the child appear so much different in size from the upper part?
a)
The light rays that travel through water and then into air are refracted.
b)
The light rays that travel through water and then into air are enlarged.
c)
The light rays that travel through air and then into water are reflected.
d)
The light rays that travel through air and then into water are reduced.
9.
a)
Reflection
b)
Refraction
10.
a)
Reflection
b)
Refraction
11.
a)
Reflection
b)
Refraction
12.
If you replace the paper clip with a plastic spoon, what happens?
a)
The bulb doesn't light
b)
The bulb is dimmer
c)
The wires get hot
d)
There is no change
13.
What kind of circuit is this?
a)
series
b)
parallel
14.
this is the symbol for a _____?
a)
switch
b)
light
c)
battery
d)
wires
15.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
16.
Which one will still function if one light bulb goes out?
a)
A-Series
b)
B-Parallel
c)
A-Parallel
d)
B-Seriese
17.
Why is electrical wiring usually made from copper?
a)
Because copper is shiny
b)
Because copper conducts electricity
c)
Because copper is not magnetic
d)
Because copper insulate electricity
18.
If the electric circuit is CLOSED, the switch is _______.
a)
ON
b)
OFF
19.
If the electric circuit is OPEN, the switch is ____.
a)
ON
b)
OFF
20.
Which kind of energy is the computer you're using right now both USING and PRODUCING?
a)
mechanical, light, and thermal
b)
electrical, light, sound, and thermal
c)
electrical, sound, and mechanical
d)
thermal, sound, and light
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