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energy unit test

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Name: _________________________________________ Date: _______________
RECORD ANSWERS BY FILLING IN THE CORRECT ANSWER BUBBLE ON THE
ANSWER SHEET.
6-5.1
1. Solar energy is —
A
B
C
D
energy from plants.
energy from the sun.
energy from Earth’s core.
energy from Earth’s atmosphere.
6-5.1
2. The stored energy in batteries is an example of —
A
B
C
D
solar energy.
thermal energy.
chemical energy.
electrical energy.
6-5.1
3. Coal, gasoline, and oil release energy as heat when taken through the
process of burning. How is this energy stored?
A
B
C
D
as electrical energy
as chemical energy
as magnetic energy
as mechanical energy
6-5.1
4. A nail becomes warm as it is nailed into a board. This heat is the result of
friction. Friction turns what type of energy into heat?
A
B
C
D
solar energy
chemical energy
electrical energy
mechanical energy
6-5.1
5. Wood burning in a fireplace produces which kind of energy?
A
B
C
D
heat energy
solar energy
electrical energy
mechanical energy
6-5.1
6. What type of energy do plants use to produce sugar by photosynthesis?
A
B
C
D
electrical
heat
mechanical
solar
6-5.1
7. Laura got a pogo stick for her birthday. The pogo stick has a pole with a
handle at one end, and a footpad with a spring at the other end. What type of
energy does the spring in the pogo stick make use of?
A
B
C
D
gravitational
heat
mechanical
solar
6-5.1
8. Water can change in its physical state from a liquid to a gas. What type of
energy causes this change to occur?
A
B
C
D
friction
heat
mechanical
wind
Use the description and diagram of the roller coaster below to answer the next 3
questions.
A roller coaster ride begins with a chain and motor. The cart
carrying the people is pulled by the chain, powered by the
motor, to the top of a tall hill and then let loose to coast down.
The cart then continues to follow the track until it reaches the
end.
C
N
B
B
B
A
L
* * Roller Coaster * *
E
O
F
Q
G
R
H
S
Ride Ends
Ride Begins
D
P
6-5.2
9. Potential energy is dependent upon the mass of an object and the height of
the object. At which point in the ride is the potential energy greatest?
A
B
C
D
A
C
F
H
6-5.2
10. Kinetic energy is dependent upon the mass of the object and the speed of the
object. At which point of the ride is the kinetic energy the greatest?
A
B
C
D
B
C
D
E
Use the picture to help answer the next 2 questions.
Dam
Water
Water
Wheel
6-5.2
11. The water behind the dam has one type of energy that is transformed into
another type of energy as it flows over the dam. Which statement about this
transformation of energy is correct?
A
B
C
D
The water is transformed into mechanical energy.
The water changes from mechanical to potential energy.
Water behind the dam has kinetic energy and water flowing over the dam has
potential energy.
Water behind the dam has potential energy and water flowing over the dam has
kinetic energy.
6-5.2
12. Dams on rivers are constructed to transfer what type of energy into what
other type of energy?
A
B
C
D
nuclear to chemical
magnetic to electrical
chemical to mechanical
mechanical to electrical
6-5.2
13. The engine in your car converts the _______________energy of gas and
oxygen into the ______________ energy of engine movement.
A
B
C
D
mechanical / kinetic
potential / mechanical
mechanical / chemical
chemical / mechanical
6-5.2
14. Which answer illustrates an object with a high amount of kinetic energy?
A
B
C
D
a boulder falling off a cliff
a spring compressed by a weight
a rubber band stretched out tight
the battery of a portable radio
6-5.3
15. A generator carries out which kind of energy transfer?
A
B
C
D
electrical energy to chemical energy
electrical energy to light energy
heat energy to electrical energy
mechanical energy to electrical energy
6-5.3
16. Which type of device, found in power plants creates energy for homes?
A
B
C
D
wire coils
generators
gas motors
electromagnets
6-5.3
17. What type of device is created when a wire carrying an electric current is
wrapped around an iron core producing a magnetic field like the one shown
above?
A
B
C
D
a motor
a generator
a magnetic field
an electromagnet
6-5.3
18. What type of device contains an electromagnet that rotates between the
poles of a magnet?
A
B
C
D
spinning rotator
simple electric motor
electric circuit
magnetic converter
6-5.4
19. During a blackout, a hospital would lose its regular source of electrical
power. It would require another source of power. Which device could the
hospital use in case of such an emergency?
A
B
C
D
generator
microwave
radiator
telegraph
6-5.4
20. Which type of energy transformation is occurring in the picture?
A
B
C
D
heat to electrical
electrical to heat
electrical to mechanical
kinetic to potential
6-5.4
21. The diagram below shows a simple electrical circuit containing a battery and
a light bulb. What kind of energy transformation takes place in this system?
A
B
C
D
chemical to electrical to light
electrical to chemical to light
electrical to light to chemical
light to chemical to electrical
6-5.4
22. What energy transformation do the headphones in this photo perform?
A
B
C
D
sound energy to electricity
electrical energy to sound energy
mechanical energy to light energy
sound energy to the energy of motion
6-5.5
23. What process does this diagram show?
warm air rises
a heater
cooler air
drops
replaces the warmer air
A
B
C
D
conduction
convection
radiation
transformation
6-5.5
24. What type of energy transfer does this heater use?
A
B
C
D
convection
conduction
radiation
transference
Use the diagram to answer questions 25-26
6-5.5
25. The type of transfer shown by Scenario A (water in the pot) is heat
transferred by ________________.
A. Conduction
B. Convection
C. Radiation
D. Solar
6-5.5
26. The type of transfer shown by Scenario C (heat from fire) is heat transferred
by ________________.
A.
B.
C.
D.
Conduction
Convection
Radiation
Solar
6-5.5
27. How does the heat from the sun reach Earth?
A
B
C
D
by convection
by conduction
by radiation
by transference
6-5.6
28. If you measured the force required for pulling a box across the floor, which is
most likely your measurement?
A
B
C
D
50 lb
50 m/s
50 m
50 N
6-5.7
29. Which answer describes how simple machines change human work?
A
B
C
D
They make it easier.
They make it harder.
They make it less important.
They make it more important.
6-5.7
30. What type of simple machine changes the direction of the force applied?
A
B
C
D
pulley
ramp
wheel and axle
wedge
6-5.7
31. A boy wants to use a wagon to carry his puppy onto a porch. What simple
machine would a boy need to get the wagon onto the porch?
A
B
C
D
a lever
a pulley
a screw
an inclined plane
6-5.7
32. What is the main reason we use simple machines, such as pulleys and
levers?
A
B
C
D
They are used because they are interesting tools to use.
They are used to reduce the force needed to complete the work.
They are used to demonstrate how things were done in the past.
They are used because currently we don’t have any more advanced solutions.
6-5.7
33. Which of these simple machines would help you cut a cake?
A
B
C
D
inclined plane
pulley
wedge
wheel and axle
Use the diagram below to answer questions 34-35
34. In which of the above scenarios does the man do the most mechanical work
(defined as force exerted over a distance)?
A
B
C
D
Scenerio A
Scenario B
Scenario C
The man does the same amount of work in each scenario
35. In Scenario A, no mechanical work was done. What is the reason for this?
A The box has no mass
B The box did not move
C The man did not exert a force
D The box and the man have the same mass
Tests for Higher Standards in Science
Grade 6
Conservation of Energy, 6-5
6-5.8
36. Which of these is an example of a compound machine made up of a wedge
and a lever?
A
B
C
D
a car
an ax
a screw
a seesaw
6-5.8
37. Which simple machines does a wagon use?
A
B
C
D
wheel and axle and lever
lever and wedge
inclined plane and pulley
screw and wedge
Use the pictures below to answer the next question.
1
2
3
4
6-5.7
38. Which truck’s ramp would require the least amount of force to load an item
into the back of the truck?
A
B
C
D
1
2
3
4
Copyright © 2000-2010 S. S. Flanagan & D E. Mott
1
Do not reproduce without permission. 07/01/10
Tests for Higher Standards in Science
Grade 6
Conservation of Energy, 6-5
6-5.7
39. A movable pulley allows you to —
A
B
C
D
use a lever to pull the load.
use less effort to pull the load.
use more effort to pull the load.
use a directional change to pull the load.
6-5.8
40. A jar lid is an example of which simple machine?
A
B
C
D
screw
pulley
wedge
lever
6-5.8
41. Which type of simple machine is a shovel?
A
B
C
D
wheel and axle
screw
wedge
lever
Copyright © 2000-2010 S. S. Flanagan & D E. Mott
2
Do not reproduce without permission. 07/01/10
Tests for Higher Standards in Science
Grade 6
Conservation of Energy, 6-5
66-5.8
42. What simple machines are found in a bicycle?
A
B
C
D
Wedge, screw, pulley
wheel & axle, pulley, screw
lever, wheel & axle, screw
wheel & axle, inclined plane, wedge
6-5.8
43. What simple machines are found in scissors?
A
B
C
D
Lever, screw and inclined plane
wheel & axle, pulley, lever
inclined plane, wheel & axle
screw, pulley, lever
Copyright © 2000-2010 S. S. Flanagan & D E. Mott
3
Do not reproduce without permission. 07/01/10
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