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Simple Machines 2
Test Description: More simple machines questions
Instructions: Answer all questions to get your test result.
1) Which body parts act as the fulcrums of levers?
A
muscles
B
bones
C
tendons
D
joints
2) A simple machine that might be thought of as an inclined plane that moves is a
A
wedge
B
wheel and axle
C
lever
D
pulley
3) Which of these could be considered an inclined plane wrapped around a cylinder?
A
lever
B
pulley
C
wheel and axle
D
screw
4) The fixed point that a lever pivots around is called the
A
gear
B
fulcrum
C
pulley
D
axle
5) In order to do work on an object, the force you exert must be
A
quick and deliberate.
B
in a direction opposite to Earth’s gravitational force.
C
the maximum amount of force you are able to exert.
D
in the same direction as the object’s motion.
6) Work equals force times
A
velocity
B
mass
C
energy
D
distance
7) When you raise or lower a flag on a flagpole, you are using a(an)
A
inclined plane
B
wedge
C
wheel and axle
D
pulley
8) How can a hockey stick be considered a machine?
A
It changes direction.
B
It multiplies distance.
C
It multiplies force.
D
It reduces friction.
9) If tight scissors have an efficiency of 50 percent, half of your work is wasted due to
A
the output force.
B
changes in direction
C
the input force.
D
friction
10) Power is measured in units called
A
newtons
B
pounds
C
watts
D
joules
*select an answer for all questions
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