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Worksheets*PRACTICE - Newton's 3rd Law
Total questions: 20
Worksheet time: 19mins
Newton’s law states that for every action, there is an ________ reaction.
unequal and opposite
equal and similar
stronger and opposite
equal and opposite
When a small car pushes a big truck, the truck applies an equal and opposite force on the car.
False
True
When a cannon fires a cannonball we observe Newton's third law. Which is the reaction force?
The cannon moving forward
The cannon moving backwards
The cannonball moving backwards
The cannonball moving forward
How is this an example of Newton’s Third law?
Only the ball is using the head
They are both exerting an equal force on each other
Only the head is pushing the ball
If two people with the same mass collide, they experience the same amount of force.
True
False
Action-reaction pairs can cause a change in motion.
True
False
When the person pushes the ground with their foot, the equal and opposite reaction force is
the ground pushing back on their foot
when they start to move forward
Force always come in________
waves
triplets
pairs
If the person is pushing backwards with the paddle, why do they move forward?
The person will actually move backwards, they need to paddle the other way
The water pushes back with an equal and opposite force
The person is pushing harder than the water
The water pushes back with a greater force than the person
What is a force?
something that always causes motion
a type of acceleration
a current
a push or a pull
If a person pushes down on a trampoline, why do they move back up into the air?
The trampoline pushes back with a greater force than the person
The trampoline pushes back with less force than the person
The trampoline pushes back with an equal and opposite force as the person
How is this an example of Newton's 3rd Law?
Only his head is pushing on the ball
Only the ball is pushing on his head
Both the ball and the head are exerting equal force on each other
A bowling ball hits the pins and the pins fall over. What is the ACTION force?
Bowling ball hitting pins
Pins falling over
If the gymnast decreases the force they exerts on the trampoline, what will the reaction be?
The gymnast will be pushed back by the trampoline with more force and go higher into the air
The gymnast will be pushed back by the trampoline with less force and not go as high into the air
No change will happen to the gymnast
A rocket is able to accelerate in the vacuum of space when it fires its engines. The force that propels the rocket is the force
of the rocket on the exhaust gases.
of the exhaust gases on the rocket.
neither A nor B
