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### CHAPTER 3 TEST SIMPLE MACHINES A.power B.wedge C.work D.mechanical advantage E.efficiency F.screw G.wheel and axle H.pulley I.inclined plane Matching: On your answer ... – PowerPoint PPT presentation

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Title: CHAPTER 3 TEST

1
CHAPTER 3 TEST
• SIMPLE MACHINES

2
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
axle H.pulley I.inclined plane
3
MULTIPLE CHOICE
• FOR THE FOLLOWING PROBLEMS, PUT THE CORRECT
LETTER IN THE SPACE PROVIDED.
• FOR BONUS, WRITE THE SCHOOL THEME FOR THIS YEAR

4
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

5
A rake makes doing work easier by changing
the A. size of the force. B. distance a force
acts. C. direction of the force. D. amount of
work required
QUESTION 10
6
Which factor always causes the output work of a
machine to be less than the input
work? A. gravity B. fatigue C. friction D. distanc
e
QUESTION 11
7
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
8
Which machine works by changing the direction of
a force? A. a rake B. a pulley C. a screwdriver
QUESTION 13
9
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
10
Which two factors are used to calculate
work? A. speed and time B. force and
speed C. time and distance D. distance and force
QUESTION 15
11
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
12
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
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
13
IDENTIFYING SIMPLE MACHINES
• PUT THE CORRECT NAME OF THE SIMPLE MACHINE IN THE
SPACE PROVIDED

14
QUESTION 23
15
QUESTION 24
16
QUESTION 25
17
QUESTION 26
18
QUESTION 27
19
QUESTION 28
20
QUESTION 29
21
QUESTION 30
22
QUESTION 31
NOT THE CART WITH WHEELS
23
QUESTION 32
24
QUESTION 33
25
QUESTION 34
26
QUESTION 35
27
QUESTION 36
28
QUESTION 37
29
QUESTION 38
30
QUESTION 39
WHAT 2 SIMPLE MACHINES CAN BE SEEN BELOW
31
QUESTION 40
LIST AS MANY SIMPLE MACHINES AS YOU CAN. BE SURE
TO EXPLAIN WHERE EACH CAN BE FOUND ON THE BICYCLE
32