1 2 3 4 5
100
. When a heavy football player and a light one run into each other, who exerts more force?
They are equal
100
You hit a wall with a stick.  The equal but opposite reaction is _____
the wall pushes against the stick
100
A 500 Kg cannon fires a 5 Kg cannonball.  Which object experiences the greatest force?
The forces are equal and opposite.
100
If you push on a wall with a force of 10 Newtons, the force acting on you is...
10 Newtons
100
Why would one ball travel a greater distance than the other when pushed with the same amount of force?
Different masses
200
Which best explains why we are able to accelerate forward when starting to run?
The striking foot pushes backward against the ground. The friction with the ground provides an equal and opposite force forward.
200
. A 500 Kg cannon fires a 5 Kg cannonball.  Which object experiences the greatest acceleration?
The cannonball since it has less inertia.
200
Jenny and Johnny each have a mass of 55.0 Kg.  If both are on roller skates, and Jenny pushes Johnny, who experiences the greatest force?
The forces are the same.
200
The Earth pulls downward on a pingpong ball with a force  of 1N. If this is the "action" force, what is the "reaction" force?
The ping pong ball exerts a force of 1 N on the Earth
200
A baseball player bats a ball with a force of 1000 N. The ball exerts a reaction force against the bat of
1000 N
300
When a large truck pushes a small car with a given force, the small car is applying an equal and opposite force on the truck.
True
300
When gravity pulls a skydiver towards the Earth, the reaction force is...
The skydiver pulling the Earth
300
Jacob runs into a very large tree on his bicycle.  Which experiences a greater force?
The forces are the same.
300
When two objects collide, they exert equal forces on each other, but the observed effect of those forces can be very different. This is because the objects _____.
have different masses
300
Head bumps ball
What is the reaction?
Ball bumps ball
400
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?
The cannon moving backward
400
. A bus hits a bug and the bug splatters on the windshield, which acceleration is greater?
The bug
400
How much force is applied to Ben's hand if he hits the wall with a force of 1,000 N?
1,000 N
400
For the same force, how does reducing the mass of an object affect its acceleration?
it increases it
400
fist hits wall
What is the reaction?
Wall hits fist
500
A book rests on a table.  The force of gravity pulls down on the book with a force of 20 newtons. What prevents the books from accelerating downward at 9.8 m/sec2    
The table presses back up on the book with an equal and opposite force of 20 newtons.
500
A bus hits a bug and the bug splatters on the windshield, which force is greater?
They're the same
500
Rockets are launched into space using jet propulsion where exhaust accelerates out from the rocket and the rocket accelerates in an opposite direction.
Newton's 3rd Law
500
An object is moving at a constant velocity. What can you say about the forces on it?
They are balanced
500
Hand touches nose
What is the reaction?
Nose touches hand






Newton's Third Law of Motion

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