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Cheney Simple Machines
Test Description: Simple Machines
Instructions: Answer all questions to get your test result.
1) What is a force?
A
no moving parts
B
a push or a pull
C
caused by friction
D
anything that helps you do work
2) Work is-
A
a push or pull
B
something you get paid for
C
a job
D
moving something from one place to another
3) A machine is -
A
anything not alive
B
runs on gas and oil
C
anything that helps you do work
D
made of gears and wires
4) A slide is
A
inclined plane
B
screw
C
lever
D
wedge
5) A knife is -
A
wheel and axle
B
a screw
C
a wedge
D
an incline plane
6) A rope and a wheel make a
A
a screw
B
swing
C
pulley
D
wheel and axel
7) A see saw is a
A
inclined plane
B
wedge
C
lever
D
pulley
8) This tool pushes things apart.
A
screw
B
lever
C
wedge
D
pulley
9) This tool reduces friction by making it easier for things to roll around
A
pulley
B
lever
C
wheel and axel
D
inclined plane
10) A gear is
A
an inclined plane
B
part of a pulley
C
a wheel with teeth
D
a wheel with a rope
11) An inclined plane wrapped around a post
A
wedge
B
inclined plane
C
screw
D
pulley
12) A compound machine is
A
a machine with pulleys
B
no more than one machine doing the work
C
two or more simple machines working together
D
machines with movable parts
13) No machine is 100 percent efficient because some energy must be used to
A
balance the weight of the machine
B
overcome the speed of the machine
C
to turn the machine off
D
overcome friction
14) To be considered a machine a tool must do all but one of the following:
A
change the direction of the force
B
eliminate the need for human control
C
make the work easier
D
make the work go faster
15) This force makes work harder:
A
pulls
B
friction
C
gravity
D
pushes
16) These only eat plants
A
herbivores
B
carnivores
C
decomposers
D
omnivores
17) These eat only meat:
A
carnivores
B
omnivores
C
herbivores
D
producers
18) Only these can be producers:
A
plants
B
cows
C
manufacturing plants
D
people
19) Producers get energy to make food from :
A
the moon
B
water
C
the sun
D
plants
20) Which of the following is an example of a wedge?
A
scissors
B
slide
C
wheelbarrow
D
bicycle
*select an answer for all questions
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