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Worksheetsunit 6 review
Total questions: 16
Worksheet time: 20mins
Name
Class
Date
1.
Which of the following does a simple machine do?
a)
allows the users to apply less force over a longer distance
b)
reduce the amount of force needed to do work
c)
change the direction of the applied force
d)
all of the above
2.
Identify this simple machine
a)
Lever
b)
Wheel & Axle
c)
Inclined Plane
d)
Screw
3.
An inclined plane wrapped around a rod forms this simple machine
a)
lever
b)
pulley
c)
screw
d)
wedge
4.
This device
a)
wedge
b)
lever
c)
incline plane
d)
wheel and axle
5.
Name this simple machine.
a)
Pulley
b)
Wheel and Axle
c)
Inclined Plane
d)
Lever
6.
Which of the following is a true statement about work?
a)
It measures how quickly an object accelerates
b)
It measures how much effort is applied over a certain distance
c)
It measures the change in an object's rate of speed
d)
It measures how much time it takes to move a massive object
7.
A kid applies a force of 70 N to a ball over 1.1 meters. How much work did he do on the ball?
a)
77 J
b)
7.7 J
c)
0.7 J
d)
770 J
8.
Which of these is a measure of force?
a)
100 newtons
b)
100 meters per second
c)
100 joules
d)
100 watts
9.
Which of the following would produce the most power?
a)
A mass of 10 kilograms lifted 10 meters in 10 seconds
b)
A mass of 10 kilograms lifted 10 meters in 5 seconds
c)
A mass of 5 kilograms lifted 10 meters in 5 seconds
d)
A mass of 5 kilograms lifted 5 meters in 10 seconds
10.
The FARTHER you move an object, the more work you do.
a)
True
b)
False
11.
Work is done on an object when the object moves in the SAME direction in which the force is applied.
a)
True
b)
False
12.
If you lift a box from the floor to a height of 1m and then carry the for for 10m, you do work only when you CARRY the box.
a)
True
b)
False
13.
Force is a _____ or _______
a)
simple complex
b)
push pull
c)
up down
d)
in out
14.
What does this image represent?
a)
A pulley
b)
A wedge
c)
A lever
d)
A wheel and axle
15.
What are two types of pulleys?
a)
wings, fries
b)
load. weight
c)
fixed, movable
d)
effort, force
16.
What is mechanical advantage?
a)
The advantage a machine has over a bicycle
b)
A measure of how much a simple machine reduces work
c)
A measure of when is the best time to use a simple machine
d)
the number of times a machine increases input force
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