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Simple Machines
Test Description: 7.P.2.4
Instructions: Answer all questions to get your test result.
1) Moving a fulcrum closer to the load makes lifting it easier
A
False
B
True
2) Which statement best explains how inclined planes create mechanical advantage and affect efficiency
A
Inclined planes increase the amount of force necessary to move an object a specified height over a distance
B
Inclined planes reduce the amount of force necessary to move an object a specified height over a distance
C
Inclined planes reduce the amount of force necessary to move an object a specified height over a distance
D
Inclined planes increase the amount of force necessary to move an object a specified height over a distance
3) Which simple machine would you use to move an object over great distances over a flat suface
A
Pulley
B
Screw
C
Wheel and Axle
D
Lever
4) Which of the following is used as a wedge?
A
a baseball bat
B
A sewing needle
C
A bicycle handle
D
A faucet handle
5) A wheel barrow uses what simple machine
A
Pulley
B
wedge
C
Screw
D
Wheel and axle
6) Which is an example of a lever
A
merry-go-round
B
Swing
C
Seesaw
D
Slide
7) How does using a pulley to lift an object increase the mechanical advantage
A
by decreasing the amount of force needed to lift the object
B
by decreasing the mass of the object being lifted
C
by increasing the mass of the object being lifted
D
by increasing the amount of force needed to lift the object
8) a flat, sloped surface
A
Inclined Plane
B
None of these
C
Pulley
D
Lever
9) The fixed point around which a lever pivots
A
Fulcrum
B
Screw
C
Pulley
D
Lever
10) A device that is thick at one end and tapers to a thin edge at the other end.
A
Lever
B
All of these
C
Wedge
D
Pulley
*select an answer for all questions
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