Which type of force(s) will cause a change in an object's motion?
gravity
zero net force
balanced forces
unbalanced forces
4. Multiple Choice
30 seconds
1 pt
An object in motion will stay in what kind of motion as long as the net forces acting on it are zero?
slowing motion in a straight line
accelerating motion in a straight line
constant motion in a straight line
constant motion in an unpredictable direction
5. Multiple Choice
30 seconds
12 pts
What is Newton's First Law
F=ma
Every action has an equal and opposite reaction
An object at rest stays at rest, an object in motion stays in motion.
Friction
6. Multiple Choice
30 seconds
1 pt
What Unit do we Measure Force in?
Newtons
Joules
grams
pounds
7. Multiple Choice
30 seconds
1 pt
How can Newton's second law be represented mathematically?
F=MA
M= F/A
A= F/M
All are correct
8. Multiple Choice
30 seconds
1 pt
As the acceleration of an object increases, what happens to the force of the object?
force increases
force decreases
force remain the same
mass increases
9. Multiple Choice
30 seconds
1 pt
The ____________ acting on an object is equal to the ____________ of that object times its __________.
mass, force, acceleration
acceleration, mass, force
force, acceleration, mass
acceleration, force, mass
10. Multiple Choice
1 minute
1 pt
Will it take more force to push an empty shopping cart or a shopping cart that is full?
The empty shopping cart
The full shopping cart
They will take the same amount of force
11. Multiple Choice
30 seconds
1 pt
Why would one ball travel a greater distance than the other when pushed with the same amount of force?
Different sizes
Different weights
Different masses
Different forces
12. Multiple Choice
30 seconds
1 pt
When a heavy football player and a light one run into each other, who exerts more force?
The heavy one
The light one
They are equal
there is no such thing as force
13. Multiple Choice
30 seconds
1 pt
Newton's third law is the law of __________________.
action and reaction
inertia
acceleration
science rocks
14. Multiple Choice
30 seconds
1 pt
When you hold an apple above your head, how many force pairs act on the apple?
1
2
3
4
15. Multiple Choice
30 seconds
1 pt
Newton's third law states that any action will have a(n) _______ and ______ reaction
Equal and similar
Equal and opposite
Equal and different
Greater and opposite
16. Multiple Choice
30 seconds
1 pt
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/sec^{2 }_{}
The table presses back up on the book with an equal and opposite force of 20 newtons.
The table presses back up on the book with a force greater than 20 newtons.
The table and the book together are accelerating downwards at 9.8 m/sec^{2}
The inertia of the book holds it up
17. Multiple Choice
30 seconds
1 pt
According to Newton's 3rd Law, reactions always go in the ___ direction of the action.
same
opposite
18. Multiple Choice
30 seconds
1 pt
What happens when two objects exert a force on each other?
One remains still while the other one moves in the same direction.
They hit each other with the same force in opposite directions.
They hit each other with unequal force in opposite directions.
They hit each other with the same force in the same direction
19. Multiple Choice
30 seconds
1 pt
A push or pull that causes a change in motion
Friction
Gravity
Force
Mass
20. Multiple Choice
30 seconds
1 pt
The amount of matter in an object
weight
force
gravity
mass
21. Multiple Choice
1.5 minutes
1 pt
8 N to the left , and 4 N to the right. Find the net force. Is this balanced
12 N Right No
4 N Left No
12 N Right Yes
4 N Left Yes
22. Multiple Choice
30 seconds
1 pt
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?
The cannon moving forward
The cannonball moving forward
The cannon moving backward
The cannonball moving backward
23. Multiple Choice
30 seconds
1 pt
You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.