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Simple Machines
Test Description: PITSCO
Instructions: Answer all questions to get your test result.
1) What is mechanical advantage?
A
using several pulleys together
B
any interaction which tends to change the motion of an object
C
the advantage gain by the use of a machine in transmitting a force
D
a push or a pull
2) A bicycle is an example of a
A
screw
B
wedge
C
wheel and axle
D
lever
3) An inclined plane warp around a cylinder is called a
A
wedge
B
screw
C
wheel and axle
D
leve
4) Which of the following is NOT a simple machine
A
foam
B
screw
C
wedge
D
pulley
5) You would use a pulley to:
A
help open close blinds
B
open a can
C
cut something
D
hold something together
6) What is a simple machine that uses grooved wheels and a rope to raise or move a load.
A
pulley
B
lever
C
wheel and axel
D
inclined plane
7) An object being lifted or moved is a
A
load
B
work
C
fulcrum
D
friction
8) Which of the following statements regarding an inclined plane is NOT true?
A
Inclined planes makes moving things easier
B
They are flat surfaces elevated at some angle
C
They provide mechanical advantage
D
They increase the normal force acting on an object
9) A simple machine that push two objects apart
A
lever
B
wedge
C
pulley
D
screw
10) Which of the following is true?
A
Apply no force --- Do no work
B
Apply less fore---- Do less work
C
Apply a force-- Displace an object---do work
D
All of the above
*select an answer for all questions
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