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WorksheetsMachines Quiz (2017)
Total questions: 40
Worksheet time: 34mins
Name
Class
Date
1.
Flagpole
a)
wedge
b)
pulley
c)
incline plane
d)
wheel and axle
2.
Lightbulb
a)
wedge
b)
pulley
c)
incline plane
d)
screw
3.
Stairs
a)
wedge
b)
pulley
c)
inclined plane
d)
wheel and axle
4.
A _____ pulley only changes the direction of the force.
a)
movable
b)
fixed
c)
alternate
d)
super
5.
Pedals, handle bars and handbrakes on a bicycle
a)
wedges
b)
pulleys
c)
incline planes
d)
levers
6.
This device being driven into the block
a)
wedge
b)
lever
c)
incline plane
d)
wheel and axle
7.
This device
a)
wedge
b)
lever
c)
incline plane
d)
wheel and axle
8.
What type of simple machine is this?
a)
wheel and axle
b)
gear
c)
lever
d)
inclined plane
9.
What do you call a machine made up of two or more simple machines?
a)
complicated machine
b)
compound or complex machine
c)
comprehensive machine
d)
constructive machine
10.
Which of the following is NOT an example of a compound/complex machine?
a)
scissors
b)
fishing pole
c)
ramp
d)
hammer
11.
A simple machine that can split things apart or hold a door open.
a)
wedge
b)
screw
c)
lever
d)
inclined plane
12.
A simple machine that is made up of an incline plane wrapped around a cylinder. It is often used to hold things together.
a)
lever
b)
screw
c)
wedge
13.
Scissors are an example of a compound/complex machine. What simple machines are used to make up this machine?
a)
2 levers and 2 inclined planes
b)
2 levers and 2 pulleys
c)
2 pulleys and 2 inclined planes
d)
1 blade and 1 handle
14.
A simple machine is a device that can help to reduce the amount of _____ required to do work.
a)
force
b)
energy
c)
work
d)
height
15.
____ is done when a force is applied over a distance.
a)
Energy
b)
Work
c)
Force
d)
Friction
16.
What type of simple machines does the photo show?
a)
Lever and wedge
b)
Inclined Plane and lever
c)
Pulley and wedge
d)
Lever and screw
17.
A ______ is a grooved wheel with a rope running along the groove.
a)
lever
b)
pulley
c)
screw
18.
An axe is an example of a(n)
a)
pulley and wheel & axle
b)
inclined plane and lever
c)
screw and lever
d)
wedge and lever
19.
A single fixed pulley changes
a)
the amount of force.
b)
the direction of force.
c)
the amount of work.
d)
both the amount and direction of force.
20.
The work you do on a machine is called ______ work, and the work done by the machine is called ______ work.
a)
output, input
b)
input, output
c)
distance, output
d)
simple, complex
21.
The __________ of a machine is the ratio of output work to input work expressed as a percent.
a)
force
b)
incline
c)
strength
d)
efficiency
22.
Some machines have 100% efficiency.
a)
True
b)
False
23.
Machines make work easier by all of the following EXCEPT
a)
changing force.
b)
changing distance.
c)
changing direction.
d)
reducing work.
24.
What is a simple machine?
a)
A machine with a sloped part.
b)
A machine that does work using only one movement.
c)
A machine with a round shape.
d)
A machine with no moving parts.
25.
A knife is an example of a (an)
a)
inclined plane
b)
wedge
c)
ramp
d)
pulley
26.
What do we call the point on which a lever pivots?
a)
end
b)
load
c)
fulcrum
d)
middle
27.
No machine in existence has 100% efficiency due to ____________________.
a)
magic
b)
friction
c)
smoke
d)
input
28.
Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
29.
Force is a _____ or _______
a)
simple, complex
b)
push, pull
c)
up, down
d)
in, out
30.
Which is not a type of simple machine?
a)
spring
b)
screw
c)
pulley
d)
wedge
31.
A ______________ is a rope or chain wrapped around a wheel.
a)
wedge
b)
lever
c)
pulley
d)
screw
32.
The efficiency of a machine can be increased by reducing __________________________.
a)
effort
b)
force
c)
fulcrum
d)
friction
33.
In which of these cases is work being done?
a)
A student sleeps
b)
A student pushes a locked door that does not move
c)
a student picks up and carries his chair into another room
d)
A student sits on the carpet
34.
T. Rex has a mouth full of _________________
a)
Inclined planes
b)
Screws
c)
Wedges
d)
Pulleys
35.
A wheel with teeth is called a _______________.
a)
Wheel and axle
b)
Lever
c)
Pulley
d)
Gear
36.
The bending of your arm at the elbow to lift something is an example of a ______ in your body, and your elbow serves as the _______.
a)
pulley, pivot
b)
lever, fulcrum
c)
wedge, fraction
d)
flex, extension
37.
Machines reduce the amount of work you do.
a)
True
b)
False
38.
Machines can reduce the amount of force required to do work but do not reduce the total work done.
a)
True
b)
False
39.
Using a system of movable pulleys, you can lift very heavy objects. What is the "trade off" for this ability?
a)
The object must be metal.
b)
The amount of rope or chain pulled is greater.
c)
There is no "trade off"
d)
You need more than one person to pull.
40.
Work =
a)
force divided by distance
b)
distance divided by force
c)
force times distance
d)
force plus distance divided by time
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