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Energy Transformations and Circuits

Total questions: 64

Worksheet time: 1hrs 13mins

Name
Class
Date
1.
Electrical Energy is transferred to _____ Energy.
a)
Thermal
b)
Solar
c)
Electrical
d)
None
2.
Which energy transformation occurs in a toaster?
a)
chemical to electric
b)
electric to thermal
c)
kinetic to chemical
d)
thermal to potential
3.
Energy transformations occur when...
a)
energy is created through conduction
b)
energy changes from one form to another
c)
two forces slide together that are touching
d)
a chemical reaction takes place
4.
The picture shows a microwave oven. As a microwave oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT —
a)
solar
b)
light
c)
thermal
d)
mechanical
5.
The purpose of the panels is to change solar energy into ____________.
a)
light energy
b)
electrical energy
c)
chemical energy
d)
mechanical energy
6.
A hairdryer converts -- 
a)
electrical energy into chemical
b)
electrical energy into thermal
c)
chemical energy into mechanical
d)
thermal energy into mechanical
7.
A group of students are studying the movement of thermal energy. The teacher asks the students to place the palms of their hands flat on their table tops and describe what is happening. Which statement below is the best description of what is happening? 
a)
The table feels cold because it is at a lower temperature than the students' hands, and thermal energy is being pulled into the table. 
b)
The table feels cold because it is at a lower temperature than the students' hands, and thermal energy is being pulled into the students' hands. 
c)
The table feels cold because it is solid, and solids hold thermal energy better than air. 
d)
The table feels cold because it is at a lower temperature than the air in the room. 
8.
Mechanical Energy is transferred to _____ Energy.
a)
Solar
b)
Mechanical
c)
Electrical
d)
Potential
9.
Electrical -> Mechanical -> Sound 
a)
A triple beam balance measuring an object’s mass
b)
A pencil sharpener plugged into a wall outlet
c)
A projector displaying a diagram on the screen
d)
A working flashlight used to light up a dark corner
10.
What energy is given off when a cell phone rings?
a)
Sound Energy
b)
Gravitational Energy
c)
Thermal Energy
d)
Nuclear Energy
11.
Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?
a)
Chemical to light
b)
Electrical to chemical
c)
Electrical to light
d)
Chemical to electrical
12.
Which of the following devices transforms electrical energy into mechanical energy?
a)
An e-reader
b)
a fan
c)
a manual pencil sharpener
d)
ipod
13.
What is produced during ALL energy transformations?
a)
Sound Energy
b)
Mechanical Energy
c)
Thermal Energy
d)
Chemical Energy
14.
Name the energy transformations taking place when I plug in my radio and it begins playing.
a)
Thermal to mechanical to electrical
b)
Radiant to chemical
c)
Electrical to sound
15.
What is Energy?
a)
The transfer energy when a force is applied over a distance.
b)
The ability to cause change or the ability to do work.
c)
The energy of an object has because of its motion.
16.
What is electrical energy?
a)
The energy that an electric current carries. When you plug something in, this energy flows.
b)
Energy carried in waves of vibrating matter. It cannot travel through empty space (it MUST have matter to travel)
c)
Energy stored in objects that are compressed or stretched like springs or rubber bands.
17.
What is sound energy?
a)
The energy that an electric current carries. When you plug something in, this energy flows.
b)
Energy carried in waves of vibrating matter. It cannot travel through empty space (it MUST have matter to travel)
c)
Energy stored in objects that are compressed or stretched like springs or rubber bands.
18.
What is thermal energy?
a)
Stored energy that is released when the nucleus of atoms are split apart or fused together.
b)
The energy due to an object's motion, position or condition. It is both kinetic and potential.
c)
The energy due to the movement of atoms or molecules that make up an object. This energy moves from warmer objects to colder objects.
d)
The energy from the sun carried by electromagnetic waves. It can move through empty space (no matter needed).
19.
What is mechanical energy?
a)
Stored energy that is released when the nucleus of atoms are split apart or fused together.
b)
The energy formed due to an object's motion, position or condition. It is both kinetic and potential.
c)
The energy due to the movement of atoms or molecules that make up an object. This energy moves from warmer objects to colder objects.
d)
The energy from the sun carried by electromagnetic waves. It can move through empty space (no matter needed).
20.
What kind of energy does this device use?
a)
Chemical
b)
Electrical
c)
Thermal
d)
Chemical
21.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
22.

Electrical energy is...

a)

the energy form originated by electromagnetic waves or fields.

b)

the energy type due to the movement of electrons.

c)

the energy form which is present in vibrations in air.

23.

The total energy in our universe...

a)

will not change, but can transform to other types.

b)

changes and expands over time.

c)

only changes form once.

24.

Food chains and food webs are examples of energy transformations.

a)

True

b)

False

25.

Chemical energy is...

a)

the energy of electric currents.

b)

the energy of electromagnetic waves.

c)

energy stored in bonds between atoms.

26.

Which example shows energy transformation from electrical to mechanical to sound?

a)

a digital bathroom scale

b)

a deer eating grass

c)

a pencil sharpener plugged into an outlet

27.

Which represents the energy transformation of chemical to light?

a)

a burning candle

b)

an electric toaster

c)

a lamp plugged into a socket

28.

What kind of energy changes when a candle is burning?

a)

chemical to light

b)

light to electrical

c)

solar to heat

d)

chemical to electrical

29.

Which type of energy transfer occurs when a flashlight shines?

a)

chemical➡thermal➡electrical

b)

chemical➡electrical➡light

c)

thermal➡chemical➡light

d)

chemical➡electrical➡chemical

30.

which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?

a)

chemical to light

b)

electrical to chemical

c)

electrical to light

d)

chemical to electrical

31.

Which transfer occurs with a lamp?

a)

electrical energy to mechanical energy

b)

electrical energy to thermal energy

c)

electrical energy to light energy

d)

chemical energy to mechanical energy

32.

Which transfer occurs with a toaster?

a)

electrical energy to mechanical energy

b)

electrical energy to thermal energy

c)

electrical energy to light energy

d)

chemical energy to mechanical energy

33.

Which transfer occurs with an oven?

a)

electrical energy to mechanical energy

b)

electrical energy to thermal energy

c)

electrical energy to light energy

d)

chemical energy to mechanical energy

34.

What type of energy in a plant?

a)

mechanical

b)

chemical

c)

electrical

35.

What type of energy in a battery?

a)

mechanical

b)

chemical

c)

electrical

36.

What type of energy in a gasoline?

a)

mechanical

b)

chemical

c)

electrical

37.
What energy transformations take place when a battery-operated radio is in use?
a)
Electrical to chemical to light
b)
Sound to chemical to mechanical
c)
Chemical to electrical to sound
d)
Light to electrical to thermal
38.
A television works by transforming electrical energy into what other kinds of energy?
a)
Light, thermal, and sound
b)
Thermal, chemical, and solar
c)
Sound, mechanical, and electrical
d)
Light, chemical, and mechanical
39.
Energy transformations occur when...
a)
energy is created through conduction
b)
energy changes from one form to another
c)
two forces slide together that are touching
d)
a chemical reaction takes place
40.

What energy is represented in the picture

a)

light and mechanical

b)

thermal and electrical

c)

thermal and mechanical

d)

electrical and mechanical

41.

Four groups of students each made a table of examples of the different types of energy involved in laser cutting a sheet of metal. Which table is correct?

a)

b)

42.

A student made a list of activities that involve energy. Which activities on the list are examples of the use of mechanical energy? (Select TWO correct answers)

a)

Watching TV

b)

Dog walking on a leash

c)

Listening to music

d)

Riding a bike

43.

A child is standing in a swimming pool. The upper part of the child and the lower part of the child appear to be different in size. This is because light travels in a ______ and is ______.

a)

straight line

b)

refracted

c)

absorbed

d)

random pattern

44.

A magnify glass does witch of the following

a)

-Magnify

-Refract

-Allows light to move in a straight line

b)

-Magnify

-Reflect

-Light to bounce

c)

-Refract

-Reflect

-Absorb

d)

-Magnify

-Refract

-Reflect

45.

A student uses the setup shown to investigate ways to speed up evaporation. Which forms could be used?

a)

Mechanical energy

b)

Thermal energy

c)

Electrical energy

d)

Light energy

46.

Students constructed a circuit using different-colored lightbulbs. What will happen if Switch 3 is closed and the other switches are left open?

a)

Only the white bulb will operate

b)

None of the bulbs will operate

c)

Only the white and yellow bulbs will operate

d)

Only the red and blue bulbs will operate

47.

The diagram shows an electric circuit with four bells that a student plans to build. When the student connects the wire as shown, which of the bells will ring?

a)

Bell 1 only

b)

Bells 1 and 4 only

c)

Bells 3 and 4 only

d)

Bells 1, 2, 3, and 4

48.

A student builds a circuit made up of a battery, two light bulbs, and a switch. What will the student most likely observe in this circuit?

a)

Light bulb 1 and light bulb 2 will both be on

b)

Light bulb 1 will be off, but light bulb 2 will be on

c)

Light bulb 1 and light bulb 2 will both be off

d)

Light bulb 1 will be on, but light bulb 2 will be off

49.

Which circuits will allow the bulb to light?

a)

A and C

b)

Only B

c)

B, D, and E

d)

B and D only

50.

Which beam of light is the result of reflection?

a)

Beam A

b)

Beam B

c)

Beam C

d)

Beam D

51.

energy of movement (motion)

a)

light

b)

sound

c)

electrical

d)

mechanical

52.

Light always travels in a....

a)

curved path

b)

straight line

c)

around objects

53.
a)

reflection

b)

refraction

54.

A teacher takes the top and side off a box. She cuts a whole in another side and puts a candle outside the box as shown below. When the teacher lights the candle in a dark room, some of the candlelight shines through the hole. Which diagram best shows how the light appears on the opposite wall of the box?

a)
b)
c)
d)
55.

Light always travels in a....

a)

curved path

b)

straight line

c)

around objects

56.

Lenses and Prisms

a)

reflect light

b)

refract light

57.

Connor placed four different materials outside on a sunny day.


Which material will most likely absorb the most light?

a)

clear plastic

b)

aluminum foil

c)

black cloth

d)

white paper

58.
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
59.

What might explain why light travels in a straight line?

a)

If there is nothing to interfere with light waves, they should travel in a straight line.

b)

Light waves will always travel in a straight line, even if they come into contact with another object.

c)

Light waves don't travel in a straight line.

d)

Light waves travel in a straight line because sound waves travel in a straight line.

60.

a)

Sealable bag

b)

Shower curtain

c)

Aluminum foil

d)

Drinking glasses

61.

The circuit has 3 lightbulbs and a bell. Which procedure will result in only the blue lightbulbs operating?

a)

Close switches 1 and 2 and leave switch 3 open

b)

Close switch 3 and leave switches 1 and 2 open

c)

Close switches 2 and 3 and leave switch 1 open

d)

Close switch 2 and leave switches 1 and 3 open

62.

If no changes are made to this circuit, what will the results be?

a)

Both bulbs are off because the switch is open

b)

Only the left bulb is lit because it has a closed path. The right bulb is not lit because of the open switch

c)

Both bulbs are lit because they each have a complete, closed path to the battery

d)

Only the right bulb is lit because an open switch causes the energy to flow to the bulb.

63.

Jay uses various objects to complete a circuit. He compares how bright a bulb glows using each object. His results are shown here.

Which object is the BEST electrical conductor?

a)

nail

b)

eraser

c)

crayon

d)

pencil lead

64.

The picture shows a series circuit with three lit bulbs. How many of the bulbs will remain lit if the wire is cut at the point shown by the arrow? (5.6B)

a)

0

b)

1

c)

2

d)

3

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