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WorksheetsWork and Simple Machines
Total questions: 25
Worksheet time: 32mins
Name
Class
Date
1.
A force exerted over a distance to move an object is ______________________.
a)
power
b)
work
c)
momentum
d)
Watt
2.
The unit used to measure work is the
a)
Watt
b)
Newton
c)
Joule
d)
meter
3.
The unit used to measure work is the
a)
Watt
b)
Newton
c)
Joule
d)
meter
4.
A 5000N block is lifted 10 m. How much work was done?
a)
50000 J
b)
5000 J
c)
500 J
d)
50 J
5.
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 carries his chair into another room
d)
A student sits on the carpet
6.
How much work does gravity do on your 63 kg teacher when she trips and falls from a height of 1.5 m?
a)
927.05 J
b)
928.05 J
c)
926.05 J
d)
925.05 J
7.
Kinley hit the softball with a force of 3000 N and applied 100 kJ of work. How far did the ball go?
a)
35.33 m
b)
34.33 m
c)
33.33 m
d)
32.33 m
8.
Find the distance an object traveled if a force of 350 N acted on it to produce 0 work?
a)
3 m
b)
2 m
c)
1 m
d)
0 m
9.
If Keegan does 508 J of work pushing a cart 29 m, how much force did he apply?
a)
16.48 N
b)
18.31 N
c)
15.89 N
d)
17.52 N
10.
What is the unit for mass?
a)
Kilogram (Kg)
b)
Newton (N)
c)
Joule (J)
d)
Watt (W)
11.
A device that has two or more simple machines working together
a)
fulcrum
b)
pulley
c)
compound (complex) machine
d)
motor
12.
Lightbulb
a)
wedge
b)
pulley
c)
incline plane
d)
screw
13.
Which is not a type of simple machine?
a)
spring
b)
screw
c)
pulley
d)
wedge
14.
What type of simple machine is this?
a)
wheel and axle
b)
gear
c)
lever
d)
inclined plane
15.
The fixed point on the lever is called
a)
load
b)
resistance
c)
bar
d)
fulcrum
16.
The device used to raise a flag up a flag pole is an example of a
a)
wheel and axle
b)
lever
c)
inclined plane
d)
pulley
17.
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
18.
Two examples of a pulley...
a)
knife & axe blade
b)
lightbulb & screw
c)
flagpole hoist & window blinds
d)
catapult & teeter totter
19.
What is a simple machine?
a)
stiff bar that rests on a fulcrum
b)
means attracted to a magnet
c)
an inclined plane that is wrapped around an axle
d)
a machine with few or no moving parts
20.
Which one is a resistance force?
a)
me pulling the leash
b)
you pushing a rock
c)
me pushing your desk
d)
weight of a car you are pushing
21.
Name this simple machine.
a)
Wheel and Axle
b)
Lever
c)
Pulley
d)
Wedge
22.
How could I reduce the effort force needed to lift the load?
a)
move the fulcrum away from the load
b)
move the fulcrum closer to the load
c)
place the fulcrum in the middle
23.
How does a pulley make work easier?
a)
It changes the direction of the input force.
b)
It changes the distance over which the input force is applied.
c)
It changes the amount of the input force applied
d)
It changes direction and increases the effect of your input force
24.
What reduces the efficacy of a simple machine?
a)
Heat
b)
Friction
c)
Mechanical Advantage
d)
Input Force
25.
_________ is an example of a lever.
a)
Hammer
b)
Crowbar
c)
Wheelbarrow
d)
All of the above
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