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WorksheetsNewton's 3rd Law of Motion
Total questions: 20
Worksheet time: 28mins
Newtons law states that for every action, there is an_________ reaction
unequal and opposite
stronger and opposite
equal and similar
equal and opposite
Force always come in________
waves
triplets
pairs
When a heavy football player and a light one run into each other, who exerts more force
The light one
Their force are equal
The heavy one
How is this an example of Newton's Third law
Only the ball is using the head
only the head is pulling the ball
They are both exerting an equal force on each other
The forces in a force pair are in _______ direction
opposite
same
When a small car pushes a big truck, the truck applies an equal and opposite force on the car.
False
True
Force do not occur in pairs
False
True
A baseball bat hits a baseball with a force of 100 Newtons. What is the force and its direction exerted by the ball on the bat?
100 Newtons, same direction
100 Newtons, opposite direction
200 Newtons, opposite direction
200 Newtons, same direction
A push or pull that can change an object’s motion
Force
Motion
Reference Frame
Direction
20 N describes the ----
Mass
Force
Acceleration
Weight
Forces come in ___________ ___________ force pairs.
action, reaction
acting lessons
action, cut
chemical reaction
When a hammer exerts a force on the nail, the nail _________________________________________.
exerts a smaller amount of force back onto the hammer
exerts a larger amount of force back onto the hammer
exerts the same amount of force back onto the hammer
cries and cries and cries
Newton's _____ Law of motion states that every action has an equal and opposite reaction.
1st
2nd
3rd
4th
The nozzle of a rocket is pointed downward so that as fuel is ignited, the exhaust pushes downward. Why is this arrangement necessary for a rocket to function properly?
The rocket is protected from the heat of the exhaust.
Burned fuel can be collected on the ground.
As fuel is combusted, the rocket pushes the gases backward and the gases push the rocket forward.
This allows the rocket to be steered properly.
A book pushes down on a table with a force of 5N, the table..
Pushes back with a force of 5N
Pushes back with a force less than 5N
Pushes back with a force greater than 5N
Does nothing. A table has no force.
According to Newton’s Third Law, if someone jumps off a skateboard, the skateboard will roll backward because -
the mass of the skateboard is the same as the mass of the person jumping off.
the pull of gravity on the person is the same as on the skateboard, regardless of size.
the air resistance on the person is great and the friction on the skateboard is small.
for the force that sent the person forward, there is an equal force pushing back on the skateboard.
