Review 1
Review 2
Review 3
Review 4
Review 5
100
What is the mathematical formula for acceleration
F= m x a
100
What is the unit for weight in physics?
Newtons (N)... Weight is a force!
100
an object in motion will stay in motion and an object at rest will stay at rest unless acted on by an outside force. Which law is this?
Newton's 1st Law
100
What Law is for every action there is an equal and opposite reaction?
Newton's 3rd Law
100
A baseball bat hits a ball. Besides flying through the air, what does the ball do?
Hits the bat with equal and opposite force
200
Can a large truck and a small car have the same momentum? If yes, then how? If no, then why not?
Yes! If the car has a much higher velocity.
200
In order for an object to accelerate
It must be acted on by a net force not equal to zero
200
This law explains why a balloon flies around the room when you let it go without tying it.
Newton's 3rd Law
200
The term used for the resistance of an object to changes in its state of motion, as described in Newton’s First Law.
Inertia
200
What does the law of conservation of momentum state?
In the absence of an external force, the momentum of a system remains unchanged.
OR
Momentum before a collision = momentum after a collision
300
According to Newton’s Second Law, doubling the force applied to a mass has this result.
Doubles the objects acceleration
300
A box is being pushed to the right across the floor. What force is acting on it on the floor?
Friction
300
The unit of force is this.
Newton
300
In Newton's Second Law, if mass is constant and force increases, this must also increase.
Acceleration
300
Impulse has this unit.
Newtons times seconds
400
What is the Net Force acting on the object?
What is 40 N?
400
A bowling ball collides with a set of bowling pins (at rest) with a force of 15N. What is the force the pins exert on the bowling ball?
15N
400
If the velocity of an object increases from 10 m/s to 100 m/s, what is the final momentum of the object if it begins at 10 Kg x m/s?
What is 100 Kg x m/s?
400
If an objects mass is cut in half but its velocity remains the same, what happens to its momentum?
It is cut in half.
400
A force of 20N acts upon a 5 kg block. Calculate the acceleration of the object.
4m/s2
500
IF a 10 kg object begins at rest and reaches a final velocity of 20 m/s over 2 seconds, what was the total change in momentum?
200 N x s
500
In a perfectly inelastic collision, what happens to the objects after the collision?
they stick together and move as one object
500
A 3 kg object is pushed with a force of 10 N for 5 seconds. What is the impulse imparted to the object?
What is 50 N x s?
500
An object is defined in physics as...
anything that has mass
500
You are pushing a chair across the floor at a constant velocity with a force of 174 Newtons. What would be the force of friction acting on the chair?
174 Newtons