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Winter Benchmark Review
Test Description: Energy, Simple Machines, Atmosphere, water cycle observation vs inference
Instructions: Answer all questions to get your test result.
1) Which shows potential energy changing to kinetic?
A
winding up a wind-up toy
B
putting canned food on a shelf
C
pulling back the string of a bow
D
releasing a slingshot
2) A wheelbarrow has a
A
lever and pulley
B
wedge and wheel and axle
C
wheel and axle and a pulley
D
wheel and axle and a lever
3) A c-clamp is used in carpentry to hold pieces of wood. what is the threaded rod that is used to close the clamp?
A
lever
B
screw
C
pulley
D
wheel and axle
4) a simple machine that uses a rope wrapped around a wheel and axle is:
A
pulley
B
lever
C
screw
D
wedge
5) A student builds an electric circuit. It has a battery that is a attached to a wire attached to a bulb. The wire stops at the bulb. The bulb doesn't light. Why?
A
closed circuit
B
open circuit
6) Which pulley system reduces the amount of effort needed to lift the load?
A
one with three wheel and axles and a long rope
B
one with one wheel and axle and a short rope
C
just a rope
D
one with two wheel and axles and a medium length rope
7) The object that a lever or pulley is used to move is called
A
load
B
effort
C
force
D
fulcrum
8) a _________ scale is used to measure force
A
load
B
pulley
C
number
D
spring
9) Which is NOT an example of a lever
A
broom
B
see saw
C
bolt
D
gas handle
10) a book placed on a shelf stores _______ energy
A
potential
B
kinetic
11) When you move, you convert chemical energy into __________ energy.
A
radiant
B
mechanical
C
potential
D
nuclear
12) When you plug a radio into the wall, the energy transformation that occur is:
A
sound to electrical
B
chemical to electrical
C
electrical to sound
D
electrical to thermal
13) Which is TRUE for the law of conservation of energy
A
energy can be destroyed
B
energy only increases
C
energy can be created
D
energy can be transformed
14) Food, gasoline, and the energy we store in out bodies are all
A
thermal
B
mechanical
C
chemical
D
radiant
15) A windmill shows this type of energy transformation:
A
mechanical to sound
B
electrical to mechanical
C
mechanical to electrical
D
thermal to electrical
16) Which object transforms chemical energy to light?
A
lightbulb
B
TV
C
glow stick
D
toaster
17) What state of mechanical energy is used by a penguin as it dives off an iceberg?
A
potential
B
kinetic
C
radiant
D
thermal
18) When using a lever, if the load is FURTHER from the fulcrum and you want to lift it one meter:
A
more work is required
B
less work is required
C
less force required
D
more force is required
19) What is the only energy that can flow through wires?
A
electrical
B
chemical
C
mechanical
D
radiant
20) The higher off the ground an object is, the more _________ energy it has
A
gravitational potential
B
elastic potential
C
gravitational kinetic
D
elastic kinetic
*select an answer for all questions
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