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WorksheetsForce, Motion, Gravity, Simple Machines Review
Total questions: 23
Worksheet time: 17mins
Name
Class
Date
1.
A broom is an example of a ______________.
a)
lever
b)
pulley
c)
wedge
d)
inclined plane
2.
A doorknob is an example of a ____________________.
a)
wedge
b)
gear
c)
lever
d)
wheel and axle
3.
The lid or cap to a bottle or jar is an example of a ___________________.
a)
wedge
b)
lever
c)
screw
d)
gear
4.
An axe is an example of a _______________.
a)
wedge and gear
b)
lever and screw
c)
wedge and lever
5.
How might gravity affect the motion of an object?
a)
It pushes the object into the air
b)
It pulls the object toward the Earth
c)
It pushes the object sideways
6.
Maria is using a wagon to move a bunch of heavy books. What simple machine is she using?
a)
screw
b)
wheel
c)
wedge
d)
incline plane
7.
Leo is using a ramp to move a heavy load into a building. What simple machine is he using?
a)
screw
b)
wheel
c)
wedge
d)
incline plane
8.
When the force exerted on an object is balanced, what happens to the object?
a)
It moves to the left.
b)
It moves to the right.
c)
It does not change its motion.
d)
It moves down.
9.
When the force exerted on an object is unbalanced, what happens to the object?
a)
It goes in the same direction.
b)
It changes motion.
c)
It stops.
d)
It spins around.
10.
Which statement correctly describes an unbalanced force?
a)
Kicking a soccer ball
b)
A laptop in the cart
c)
A book resting on a desk
d)
A football in a backpack
11.
Which statement correctly describes a balanced force?
a)
Pushing a book off a desk
b)
Jumping off a bed
c)
Knocking over a glass of milk
d)
A marker sitting on the desk
12.
Which statement best explains gravity?
a)
A force that pulls objects toward each other
b)
A force that pushes objects away from each other
c)
An object’s location
d)
A force that makes objects fly
13.
If a basketball and a ping pong ball are dropped at the same time, what will happen?
a)
The basketball will hit the ground first.
b)
The ping pong ball will hit the ground first.
c)
They will both land at the same time.
d)
Both balls will break when they hit the ground.
14.
How do simple machines make work easier?
a)
By using magic
b)
By changing the force needed to accomplish a task
c)
By keeping the force the same
15.
How do wedges make work easier?
a)
It reduces the amount of force needed to lift the load.
b)
By reducing the amount of force it takes to raise an object.
c)
By pushing an object underground.
16.
How does an inclined plane make work easier?
a)
It reduces the amount of force needed to lift the load.
b)
By reducing the amount of force it takes to raise an object.
c)
By pushing an object underground.
17.
Which could be an example of a balanced force?
a)
An asteroid moving at a constant speed through space
b)
A car accelerating from a stop sign
c)
A box of dishes falling from a counter
d)
A rocket taking off
18.
If these teams are pulling with the same amount of force what will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
19.
How can you change an incline plane to reduce the amount of force required to lift an object?
a)
increase the length of the ramp
b)
increase the height of the ramp
c)
decrease the length of the ramp
20.
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
21.
What is this an example of?
a)
wheel and axle
b)
lever
c)
inclined plane
d)
pulley
22.
Mr. Smith uses a ramp to load a heavy box onto the back of his truck. By using the ramp, instead of just lifting the box, Mr. Smith ____________.
a)
exerts less force
b)
exerts more force
c)
has a harder job to do
d)
does more work
23.
What type of simple machine would a sailor use to raise the sail on his boat?
a)
pulley
b)
wedge
c)
wheel and axle
d)
screw
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