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