Momentum
Motion
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
100
This formula calculates momentum for an object.
What is p=mv
100
Velocity is calculated using this formula.
What is v=d/t?
100
Newton's 1st Law tells us this:
What is an object only changes its motion if an unbalanced force is applied
100
What is Newton's 2nd Law?
What is F=ma/force equals the mass times the acceleration
100
Define Newton's 3rd Law.
What is for every force there is an equal and opposite reaction force?
200
"10 kg*m/s" is not a complete statement of momentum, because this information is missing
What is direction?
200
The difference between speed and velocity is that velocity includes this information that speed does not.
What is direction?
200
If you throw an object in space, its motion can be described like this:
What is goes forever at the same velocity
200
If I apply a 100 N force to a 1 kg object, how much will it accelerate? Include units!
What is 100 m/s^2
200
When the Earth applies a 100 N force to an object, what force does that object apply to the Earth?
What is 100 N
300
This term, calculated as a force times the time it was applied, is equivalent to the change in an object's momentum.
What is impulse?
300
Acceleration is defined as this.
What is rate of change of velocity?
300
This term, an object's resistance to change in its motion, is equivalent to its mass
What is inertia?
300
When a car hits a bus, both of them apply the same amount of force on each other. Why does the bus take less damage?
What is the bus has a much larger mass, so its acceleration is much lower for that same force?
300
A car and a bug collide. How do the forces that they apply to each other compare?
What is the forces are equal (and opposite)
400
If I have two objects that have a total momentum of 100 kg*m/s east before a collision, this is their total momentum AFTER the collision.
What is 100 kg*m/s east?
400
Give an example of acceleration that doesn't include a change in speed.
What is (any example of an object changing direction but not speed)
400
You have the force of gravity acting on you when you sit in your chair, yet you are not moving. Why?
What is "the normal force"/"the force of the chair on me" balances out the force of gravity
400
We all understand that if two objects are accelerating at the same rate, say a car and a bike, we would much rather be hit by the bike. Why?
F=ma, for the same a, more m means more F
400
Can you "swim" through empty space? Why or why not?
What is no, because you have no other object to "push off of" and have a Newton's 3rd law pair with
500
Safety methods that intend to lessen the force of a crash of a given impulse work by increasing this:
What is time the force is applied?
500
Give an example of an object that is still moving forward BUT is undergoing negative acceleration.
What is (answers may vary here)
500
Why do objects in motion on Earth not stay in motion?
What are the forces of gravity and friction
500
How much more force would you need to accelerate an object of mass 10M the same as a mass of 1M?
What is 10 times the force
500
How does a rocket work in space?
What is it pushes gases out one direction so the rocket will go the opposite direction because of Newton's 3rd law.
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