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Forms of ENERGY

Total questions: 37

Worksheet time: 39mins

Name
Class
Date
1.

The toy oven shown uses a lightbulb to bake small cakes. What types of energy does the toy oven use to bake the cakes?

a)

Electrical and thermal

b)

Mechanical and electrical

c)

Thermal and mechanical

d)

Light and sound

2.

The photograph shows a girl using a lab instrument during an investigation on light. Which correctly identifies the reasons for the appearance of the girl's eye through the lab instrument?

a)

Magnification by the instrument

Reflection off the instrument

Light moving in straight lines

b)

Magnification by the instrument

Refraction through the instrument

Light moving in straight lines

c)

Refraction through the instrument

Reflection off the instrument

d)

Magnification by the instrument

Refraction through the instrument

Reflection off the instrument

3.

Which object requires only mechanical energy to perform its main function?

a)
b)
c)
d)
4.

Which statement about light is supported by this picture?

a)

Light travels in straight lines until it enters a different material like water in a lake.

b)

Light can refract in air and in clear water.

c)

Light is reflected off the smooth surface of the lake.

d)

The water in the lake is blue because light forms an image.

5.

For an investigation a teacher dropped a bolt into a container of maple syrup and asked students to remove it without touching the syrup. The students first tried to use a strong magnet to remove the bolt, but it remained on the bottom of the container. They finally poured the syrup into another container to get the bolt out. Which of these best describes some of the bolt's physical properties?

a)

The bolt is magnetic and has the same density as the maple syrup.

b)

The bolt is nonmagnetic and more dense than the maple syrup.

c)

The bolt is nonmagnetic and less dense than the maple syrup.

d)

The bolt is magnetic and less dense than the maple syrup.

e)

The bolt is magnetic and has the same density as the maple syrup.

6.

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

7.
Which explains why the fork looks different under water?
a)
light can't pass through the glass
b)
the wavelength of light lengthens
c)
the amount of light increases when going through water
d)
light is refracted at an angle
8.
Smooth surfaces _______ a lot of light.
a)
reflect
b)
bend
c)
absorb
d)
twist
9.
Why do we see objects as white?
a)
They absorb all light
b)
They reflect all light
c)
They absorb some light and reflect some light
10.
Opaque means...
a)
No light passes through it
b)
All light passes through it
c)
Some light passes through it
11.
Luminous means...
a)
Gives out its own light
b)
Reflects light from other things
12.
The color you see is the color that is ___.
a)
reflected
b)
absorbed
13.
___________ is a from of energy that we can see with our eyes.
a)
shadow
b)
light
c)
energy
d)
reflection 
14.
Which term means to bounce off the surface of something?
a)
Refract
b)
Absorb
c)
Reflect
d)
prism
15.
The bending of waves as they pass from one substance into another.
a)
Reaction
b)
Reflection
c)
Refraction
d)
Repost
16.
White light is made up of _________________ colors.
a)
10
b)
3
c)
7
d)
70
17.
If light strikes a mirror at a 50⁰ angle, what angle will it come off of the mirror?
a)
50⁰
b)
70⁰
c)
45⁰
d)
30⁰
18.
Which color absorbs all light?
a)
White
b)
Black
c)
Orange
d)
Green
19.
Which color reflects all light?
a)
White
b)
Black
c)
Orange 
d)
Green
20.
The type of energy that allows us to hear is
a)
Mechanical
b)
Sound
c)
Light
d)
Electric
21.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
22.
What kind of energy does this device use?
a)
Chemical
b)
Electrical
c)
Thermal
d)
Chemical
23.
The ultimate source of energy is:
a)
The sky
b)
The sun
c)
Plants
d)
Movement
24.
What type of energy does an oven produce?
a)
light 
b)
heat
c)
light and heat
d)
none of the above
25.
A candle makes heat and -
a)
ice
b)
electricity
c)
sound
d)
light
26.
The illustration shows a lamp giving off light.
What form of energy does the lamp use to produce light?
a)
thermal
b)
light
c)
electricity
d)
mechanical
27.
Looking at the picture, what type of energy is being used?
a)
light
b)
thermal
c)
mechanical
d)
sound
28.
All of the following objects produce sound energy EXCEPT-
a)
A radio
b)
A flashlight
c)
A drum
d)
A television
29.
Which type of energy does the battery produce?
a)
sound
b)
light
c)
mechanical
d)
electrical
30.
In the above picture, a powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?

a)
stir the powder in the liquid
b)
freeze the mixture
c)
add more powder to the liquid
d)
store the mixture in a dark place
31.
wood is a _____?
a)
conductor
b)
insulator
32.
this circuit is .....?
a)
open
b)
parallel
c)
closed
d)
The cutest little circuit evah!
33.
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
34.
If you replace the paper clip with a plastic spoon, what is the plastic spoon acting as?
a)
A conductor
b)
A diode
c)
An insulator
d)
A switch
35.
Which statement is true?
a)
The light bulb will light up because the  circuit is complete.
b)
The light bulb will light up because the  circuit is broken.
c)
The light bulb will not light up because the  circuit is complete.
d)
The light bulb will not light up because the  circuit is broken.
36.
Would would best complete this circuit?
a)
A wire
b)
A switch
c)
A battery
d)
A light bulb
37.
This is an example of a/an:
a)
Closed circuit
b)
Open circuit

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