The equation for this is distance divided by time.
What is speed
100
The ______ of an object is a measure of how hard it is to stop an object.
What is momentum
100
A ____ is a push or pull.
What is force
100
The formula for Newton's 2nd law is ____.
What is F=MA
100
Newton's 3rd law states that ______.
What is forces always act in equal but opposite pairs.
200
An objects velocity involves what two factors/variables?
What is speed and direction
200
According to the law of conservation of momentum, the total momentum of objects that collide is _______ before and after the collision.
What is the same
200
Newton's 1st law states that ______.
What is an object at rest remains at rest, and an object in motion stays in motion, unless acted upon by an outside force.
200
Your _____ is really the gravitational force between you and earth.
What is weight
200
Every action force is pained with a _______ force.
What is reaction
300
The equation for this is an objets change in velocity divided by the time it takes for the change to occur.
Final speed - Initial speed / time
What is acceleration
300
The tendency of an object to resist a change in its motion is called ______.
What is inertia
300
This force brings almost everything on earth to a stop.
What is friction
300
When traveling to different planets your ____ will change but not your ____.
What is weight and mass
300
When you are sitting on a chair, identify the action/reaction forces.
What is action - the force of your gravity on your body on the chair
reaction - the force the chair exerts on your body
400
True or False: If an object is slowing down it is accelerating.
True
400
Find the momentum of an object that has a mass of 20kg and a velocity of 4 m/s North. Units must be included.
What is 80 kg x m/s North
400
Give an example of Newton's 1st law of motion.
*Teacher's discretion
400
The strength of the gravitational force depends on ___ and ___.
What is mass and distance
400
Give an example of Newton's 3rd law.
*Teacher's Discretion
500
A horizontal line on a speed-time graph represents an acceleration of _____.
What is zero or constant speed
500
The momentum of Marble A is 5 kg x m/s east and Marble B is 2 kg x m/s east. If Marble A and Marble B collide, what will be the total momentum after the collision?
What is 7kg x m/s east
500
True or False: A ball sitting on the ground has no forces acting on it.
What is false - gravity
500
The acceleration due to gravity on earth is ___.
What is 9.8 m/s^2
500
An object is in freefall when the only force acting on it is ____.