CHAPTER 3 TEST

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CHAPTER 3 TEST

• SIMPLE MACHINES

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Matching On your answer sheet, put the correct
letter in the space provided.
1. a simple machine made up of a grooved
wheel with a rope or cable wrapped around
it. 2. the transfer of energy to an object by
a force that makes an object move in the
direction of the force 3. a sloped surface that
moves 4. the rate at which work is
done 5. the ratio of the output force exerted
to the input force applied 6. the ratio of
the output work to the input work 7. an
inclined plane wrapped around a
cylinder 8. a flat, sloped surface
A.power B.wedge C.work D.mechanical
advantage E.efficiency F.screw G.wheel and
axle H.pulley I.inclined plane
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MULTIPLE CHOICE

• FOR THE FOLLOWING PROBLEMS, PUT THE CORRECT
  LETTER IN THE SPACE PROVIDED.
• FOR BONUS, WRITE THE SCHOOL THEME FOR THIS YEAR
  UNDER YOUR NAME ON THE ANSWER SHEET

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QUESTION 9

• Which distance do you measure to determine how
  much work was done on an object that has been
  moved?
• A. vertical distance
• B. horizontal distance
• C. all distance against gravity
• D. distance in the direction of motion

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A rake makes doing work easier by changing
theA. size of the force.B. distance a force
acts.C. direction of the force.D. amount of
work required
QUESTION 10
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Which factor always causes the output work of a
machine to be less than the input
work?A. gravityB. fatigueC. frictionD. distanc
e
QUESTION 11
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How is the energy of an object affected after
work is done on it?A. Energy is
increased.B. Energy is decreased.C. Energy
remains the same.
QUESTION 12
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Which machine works by changing the direction of
a force?A. a rakeB. a pulleyC. a screwdriver
QUESTION 13
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Which statement describes the relationship
between input work and output work using a
machine?A. Input work is always equal to output
work.B. Input work is always less than output
work.C. Input work is always greater than output
work
QUESTION 14
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Which two factors are used to calculate
work?A. speed and timeB. force and
speedC. time and distanceD. distance and force
QUESTION 15
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Which option is NOT a way that machines can make
work easier?A. Increase the total
energy.B. Change the size of a force.C. Change
the direction of a force.D. Increase the
distance a force acts.
QUESTION 16
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17 Simple machines are tools that make work
easier.18 Simple machines have many complex
parts.19 Simple machines require no energy
to do work.20 Simple machines do work with
one movement.21 Simple machines give us an
advantage by changing the amount,
speed or direction of forces.22 Simple
machines require a much greater force to
overcome a smaller force.
True or False. Put T (true) or F (false) in
the space provided on your answer sheet
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IDENTIFYING SIMPLE MACHINES

• PUT THE CORRECT NAME OF THE SIMPLE MACHINE IN THE
  SPACE PROVIDED

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QUESTION 23
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QUESTION 24
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QUESTION 25
17
QUESTION 26
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QUESTION 27
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QUESTION 28
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QUESTION 29
21
QUESTION 30
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QUESTION 31
NOT THE CART WITH WHEELS
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QUESTION 32
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QUESTION 33
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QUESTION 34
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QUESTION 35
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QUESTION 36
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QUESTION 37
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QUESTION 38
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QUESTION 39
WHAT 2 SIMPLE MACHINES CAN BE SEEN BELOW
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QUESTION 40
LIST AS MANY SIMPLE MACHINES AS YOU CAN. BE SURE
TO EXPLAIN WHERE EACH CAN BE FOUND ON THE BICYCLE
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TURN IN YOUR ANSWER SHEET AND EXIT OUT OF THIS
TEST