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Newton's Law Review Flashcards | StudBud
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Newton's Law Review
Newton's Law Review
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1
What is wrong with this action-reaction pair?
The action force should be facing to the right.
The skateboarder is facing the wrong way in the image.
Pair shows both forces going in the same direction, not the opposite.
There is nothing wrong with this action-reaction pair.
2
Newton's 3rd Law states that forces must ALWAYS occur in _______.
Actions
Pairs
Earth
Reactions
3
What is Newton' 2nd Law?
None of these
Action-Reaction Law
Law of Inertia
Law of Force and Acceleration
4
According to Newton's second Law which would take more force to slow down? Assume they are accelerating at the same rate
They would both take the same force
The green car on the left.
The silver car on the right.
5
Complete the diagram below.
115
70
No one knows
230
6
Examples of Newton's 2nd Law of Motion
A golf ball continues to roll until friction and gravity stop it
A swimmer pushes back on the water and moves toward.
A full grocery cart requires more force to push than an empty cart
A pencil on a table will stay there until someone picks it up
7
Compare the two carts. Which one will require a greater force for them to both accelerate the same?
The cart with the boxes with 12 kg of added mass.
The cart without the boxes of 12 kg of added mass.
The force remains constant for both carts.
8
Newton's 3rd Law
Potential turns into kinetic energy.
For every action there is an equal and opposite reaction.
F=MA
Add Laws ona and two together.
9
The frog below demonstrates Newton's 3rd Law. What force does
vector A
represent?
Action
Reaction
10
The frog below demonstrates Newton's 3rd Law. What force does
vector B
represent?
Reaction
Action
11
Which way will the balloon move?
down
up
right
left
12
Newton's 2nd Law
An object in motion will stay in motion
It takes more force to move a large mass than a small mass
Every action has an equal and opposite reaction
13
Which plywood shipping crate, when pushed, would require the least amount of force to achieve the acceleration?
crate 1
crate 4
crate 3
crate 2
14
Match the law with the description. Newton's 3rd Law
force = mass x acceleration
for every action (force) there is an equal and opposite reaction (force)
15
The force of the mosquito hitting the windshield is the same as the force of the windshield hitting the mosquito.
True
False
16
You practice Newton's third law using a skateboard and the wall. You push the wall
What is the reaction force?
The skateboard pushes back.
The person's force is on the wall.
The wall pushes you.
The wall moves towards the person.
17
According to Newton's third law, what happens when you push against a wall?
The wall pushes back at you twice as hard as you push it.
The wall pushes back at you half as hard as you push it.
The wall doesn't resist at all.
The wall pushes back at you with the same amount of force.
18
Using Newton’s Third Law, what would happen if a person sat on a chair and the chair did not exert an equal force back?
The person would not be able to get out of the chair.
The chair would stay the same.
The person would fall to the floor.
The chair would become wider.
19
Which of the following would produce the most force to a car during an accident?
a 500 kilogram car crashing into a wall with an acceleration of 20 m/s/s
an 800-kilogram car crashing into a wall with an acceleration of 20 m/s/s
two 5 kilogram cars crashing into each other head-on at 2 m/s/s
20
What is wrong with this action and reaction pair?
The reaction force is too large compared to the action force.
The reaction force vector is not equal to the action force vector.
There is nothing wrong with this action-reaction pair.
21
What is Newton's 3rd law?
None of these
Law of Force and Acceleration
Law of Inertia
Action- Reaction Law
22
A force of 90N is applied to each cart. Which one will accelerate the most?
Cart 1
Cart 4
Cart 3
Cart 2
23
Match the law with the description. Newton's 2nd Law
for every action (force) there is an equal and opposite reaction (force)
force = mass x acceleration
