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
2. Multiple Choice
1 minute
1 pt
When you hold an apple above your head, how many force pairs act on the apple?
1
2
3
4
3. Multiple Choice
1 minute
1 pt
Suppose two carts, one twice as massive as the other, fly apart when the compressed spring that joins them is released. How fast does the heavier cart roll compared with the lighter cart?
twice as fast
the same
half as fast
4. Multiple Choice
10 seconds
1 pt
A bus hits a bug and the bug splatters on the windshield, which force is greater?
The Bus
The Bug
They're the same
Gravity acting on the bus
5. Multiple Choice
10 seconds
1 pt
When Ronda Rousey got kicked in the face, What is the interaction pair?
The foot and the face
Ronda Rousey and media criticism
The foot and the air flow
Ronda Rousey and the floor
6. Multiple Choice
10 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
7. Multiple Choice
1 minute
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/sec2
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/sec2
The inertia of the book holds it up
8. Multiple Choice
10 seconds
1 pt
You hit a wall with a stick. The equal but opposite reaction is _____
the wall pushes against you
the stick pushes against you
you push against the stick
the wall pushes against the stick
9. Multiple Choice
10 seconds
1 pt
Friction and gravity are both examples of a force.
True
False
10. Multiple Choice
30 seconds
1 pt
Suppose two carts, one twice as massive as the other, fly apart when the compressed spring that joins them is released. How fast does the lighter cart roll compared with the heavier cart?
twice as fast
the same
half as fast
11. Multiple Choice
15 minutes
1 pt
A science book with a mass of 2.8 kg is pushed along a table with a net force of 1 N. What is the book's acceleration?
0.28 m/s2
0.32 m/s2
0.36 m/s2
0.38 m/s2
12. Multiple Choice
15 minutes
1 pt
When the same force is applied to both the male African elephant and the female Asian elephant, their acceleration is different. Why?
Male and female elephants have different heights.
The male elephant has more mass
The female elephant has probably eaten more
The male elephant has less mass
13. Multiple Choice
15 minutes
1 pt
This equation goes with which law?
Newton's first law of motion
Newton's second law of motion
Newton's third law of motion
None of these
14. Multiple Choice
10 seconds
1 pt
What is the 3rd Law of Motion?
A body at rest will stay at rest, and a body in motion will stay in motion unless acted upon by an external force.
The force acting on an object is equal to the mass of that object times its acceleration.
The principle that 2 particles attract each other with forces directly proportional to the product of their masses divided by the square root of the distance between them.
For every action, there is an equal and opposite reaction.
15. Multiple Choice
10 seconds
1 pt
Who came up with the 3rd Law of Motion?
Isaac Newton
John Wayne
Kanye West
Albert Einstein
16. Multiple Choice
10 seconds
1 pt
What does the 3rd Law cause guns to do?
Fire a bullet
Make a sound
Recoil after firing
Load a magazine
17. Multiple Choice
10 seconds
1 pt
For every action...
There is an equal and opposite reaction
There is no reaction
An object moves
There are two reactions
18. Multiple Choice
10 seconds
1 pt
What is net force?
Gravitational force exerted on an object
The combination of all forces acting on an object
Unit of force
Synonym for friction
19. Multiple Choice
30 seconds
1 pt
Define unbalanced force.
The product of an object's mass and velocity
The tendency of an object to resist any change in it's motion
Forces that produce a nonzero net force.
The force of gravity on an object on the surface of a planet
20. Multiple Choice
10 seconds
1 pt
Which law explains why when you put a book on a table the table pushes on the book
3rd law
4th law
1st law
2nd law
21. Multiple Choice
10 seconds
1 pt
The measure of the pull of gravity on an object is ___________________.
motion
weight
speed
friction
22. Multiple Choice
30 seconds
1 pt
The law of inertia states that on object...
will continue moving at the same velocity unless an outside force acts on it
will continue moving in a straight line unless an outside force acts on it
at rest will stay at rest unless acted on by an outside force
all of these
23. Multiple Choice
10 seconds
1 pt
The SI unit for force is the Netwon.
True
False
24. Multiple Choice
10 seconds
1 pt
An astronaut has the same mass on earth as in space.
True
False
25. Multiple Choice
10 seconds
1 pt
What can a force do?
Change direction, speed, stop, and move an object
Throw an object
Use the force
Change the mass & velocity
26. Multiple Choice
10 seconds
1 pt
What is the name for a push or pull?
A movement
A force
Speed
Density
27. Multiple Choice
30 seconds
1 pt
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
28. Multiple Choice
10 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
29. Multiple Choice
30 seconds
1 pt
A ball thrown at the ground bounces back up.
Law of Inertia (1st Law)
Law of Mass and Acceleration (2nd law)
Law of Action Reaction (3rd Law)
30. Multiple Choice
1 minute
1 pt
F=MA An object of mass 10 kg is accelerated upward at 2 m/s2. What force is required?
20 N
2 N
5 N
0 N
31. Multiple Choice
1 minute
1 pt
If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first?
the cannonball
the baseball
The balls land at the same time.
the ball with the larger volume
32. Multiple Choice
1 minute
1 pt
If a baseball and a cannonball are dropped from the same height at the same time in a vacuum, which ball will hit the ground first?
the cannonball
the baseball
The balls land at the same time.
the ball with the larger volume
33. Multiple Choice
5 minutes
1 pt
Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?
first
second
third
fourth
34. Multiple Choice
10 seconds
1 pt
A(n) __________ is a push or pull.
newton
acceleration
force
momentum
35. Multiple Choice
10 seconds
1 pt
When the net force is zero, the forces on an object are balanced. True or false.
true
false
36. Multiple Choice
5 minutes
1 pt
According to Newton's First Law, an object's velocity will not change unless _____ acts upon it.
a balanced force
an unbalanced force
zero force
37. Multiple Choice
10 seconds
1 pt
If you travel to Mars, where gravity is 38% of Earth's gravity, what will happen to your mass and weight?
Your mass and weight will both be greater than on Earth.
Your mass and weight will both be less than on Earth.
Your mass will be the same, but your weight will be less than on Earth.
Your mass will be less than on Earth, but your weight will be the same.
38. Multiple Choice
30 seconds
1 pt
A soccer ball accelerates more than a bowling ball when thrown with the same force.
1st Law
2nd Law
3rd Law
39. Multiple Choice
30 seconds
1 pt
What is the force used to push a 20 kg wheelbarrow that accelerates 5 m/s?
100N
10N
4N
40N
40. Multiple Choice
15 minutes
1 pt
If you exert a net force of 8 N on a 2-kg object, what will its acceleration be?