WorksheetsNewtons Third Law
Total questions: 20
Worksheet time: 10mins
A baseball player hits a ball with 400 N of force. How much force does the ball exert on the bat?
300
400
500
Not enough info to tell
Your friend pushes you for making fun of him/her. What is the reaction force?
You pushing back on your friend
You pushing on the ground
There is no reaction force
Your friend pushing on the ground
When you jump up, you push the earth downwards. Why can't you tell that the earth has moved?
The force of you jumping up doesn't actually push the earth down.
The earth has much more mass so it doesn't move at all
The earth is firmly rooted
The earth has much more mass so you can't tell that it moved
In space, rockets move by shooting air backwards. What moves faster the air or the ship?
Neither, they both move at the same speed
The ship because it has more mass
The air because it has less mass
The ship because it is moving forwards
When you hit a tennis ball with a racket...
The ball exerts more force on the racket
The ball and racket exert the same force on each other
The racket exerts more force on the ball
It depends on how hard you hit it
Two students with different masses are sitting in roll-y chairs. The lighter one uses his feet to push the other
The lighter student will move faster because he has less mass
The heavier student will move more because he is being pushed
They will move with the same speed
The heavier student shouldn't move at all
What causes a jet ski to move forward?
The motor pushes the jet ski forward
The water pushes the jet ski forward
The person pushes the jet ski forward
Gravity pushes the jet ski forward
Is it possible to move an object upwards by exerting a force equal to its weight?
No, you have to apply more force than its weight
No, you need to apply acceleration, not force
Yes, any force you use will cause it to move at least a little
Yes, but only if it was already moving upwards
Can you push harder with one hand against the other?
Yes, always
No, never
Yes, but it depends on how hard you push
No, but this one is not the correct answer
Select the correct answer
Only one of these answers is lying
The forces between two objects are always equal unless one of the objects break.
This answer is incorrect
All of the other answers are lying
Why is it easier to stand up if you push something down?
The thing you push down pushes you up
Your arms push your body up
It helps your legs get proper posture
It actually doesn't help, its just a mental thing
When wearing socks, why is it easier to walk on carpet than a smooth hard floor?
There is more friction on the hard floor
The soft carpet feels better on your feet
There is more friction on the carpet
The hard floor pushes against you harder
When you jump upwards, what force is moving you upwards once you leave the ground?
Gravity on to you
The air on to you
You on to the earth
There is no upward force once you leave the ground
A small bug splats against a car windshield. Which object experiences greater force?
The bug
The windshield
Both experience the same force
Not enough info given
A bug splats onto the windshield of a car. Which object has the greater acceleration?
The bug
The car
Both have the same acceleration
Not enough information to tell
If you push your friend in a shopping cart with 40 N at constant velocity, what is the force of friction on the cart?
40 N
More than 40 N
Less than 40 N
Depends on the surface and type of wheel
When weight lifters raise the bar...
They are exerting less force than the bars weight
They are exerting an equal force to the bars weight
They are exerting more force than the bars weight
It depends on how heavy the bar is
Two classmates play a game of tug of war on ice. Which student would win?
The lighter student because he could slide on the ice easier
The heavier student because he has more mass
Without friction, neither student would win
Both students go backwards because of the force of the rope back onto them
If you weigh 1000 N and hang from a pair of ropes, what is the force of tension in each rope?
1000 N
10 N
500 N
Not enough info to tell
Attach two spring scales together and pull each one apart with a force of 10 N. What is the reading on the scales?
10 N for both
20 N for both
0 N for one and 10 N for the other
10 N for one and 20 N for the other
