WorksheetsSimple Machines
Total questions: 10
Worksheet time: 16mins
Name
Class
Date
1.
An inclined plane reduces the amount of force needed to move an object by -
a)
increasing the distance the object moves.
b)
transferring more of the force to the object
c)
reversing the direction the object is moved.
2.
Students pulled the same mass up an inclined plane that was 20 cm, 30 cm, and 40 cm long. Each time, they used a spring scale to measure the force needed to pull the mass up the inclined plane. What did they conclude?
a)
Less force was needed on the 20 cm plane
b)
More force was needed on the 40 cm inclined plane.
c)
The least amount of force was needed on the 40 cm inclined plane.
d)
The least amount of force was needed on the 30 cm inclined plane.
3.
The picture shows a 150 N load being lifted using a fixed pulley. Which force could lift the load?
a)
50 N
b)
75 N
c)
175 N
4.
How much force would be needed to lift the 150 N weight? Remember, you need to divide the original force by the number of pulleys.
a)
300 N
b)
150 N
c)
75 N
d)
25 N
5.
A fixed pulley does not reduce the force needed to lift an object. What, then, is the advantage of using a fixed pulley?
a)
A fixed pulley reduces the force.
b)
A fixed pulley changes the direction of the force.
c)
A fixed pulley does not have any advantages.
6.
The longer the inclined plane, the ___________________ to move the object
a)
less force you need
b)
more force you need
c)
work is increased
d)
work is reduced
7.
A flag pole is a pulley system.
a)
TRUE
b)
FALSE
8.
What is a pulley system?
a)
A simple machine that consist of a wheel and a rope
b)
A simple machine that consist of a board and a rope
c)
A simple machine that uses a wedge
d)
A diving board
9.
Which one is an example of a pulley system?
a)
An ax
b)
A ramp
c)
An elevator
d)
A See-Saw
10.
In a simple machine, what is the effort?
a)
the force needed to move the load
b)
the distance the load travels
c)
the mass lifted by a system
d)
the object being moved
100 %
