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# Force and Motion

### A review of our Force and Motion Unit

QuestionAnswer
What is Newton's First Law of Motion? An object in motion will stay in motion until it is acted upon by an unbalanced force.
What is Newton's Second Law of Motion? Force = mass x acceleration
What is Newton's Third Law of Motion? For every action there is an equal and opposite reaction.
What is the symbol for Force? F
What is the symbol for Acceleration? a
What is the symbol for Momentum? p
What is the symbol for Velocity? V
What is the symbol for Mass? m
What is the symbol for Distance? d
What is the symbol for Time? t
What is the SI unit for Force? kgm/sec2 or Newton (N)
What is the SI unit for Momentum? kgm/sec
What is the SI unit for Acceleration? m/sec2
What is the SI unit for Time? sec
What is the SI unit for Mass? kg
What is the SI unit for Distance? m
What is the SI unit for Velocity? m/sec
What is a force? Anything that pushes or pulls
What is motion? Movement between two locations
What is speed? How fast an object travels between two locations
What is a vector? A magnitude and direction
What is a scalor? A magnitude
What is velocity? How fast an object travels between two locations and in what direction
What is momentum? How hard it is to stop a moving object
What is acceleration? A slowing down, speeding up or change in direction
What is a balanced force? The net force is zero due to equal and opposite forces canceling out or a constant velocity
What is an unbalanced force? A force that is not cancelled out and produces acceleration
What is gravity? An attraction between two objects
What is inertia? An object in motion does not want to stop (or an object at rest does not want to move)
Who is Isaac Newton? The person who discovered gravity and described the Laws of Motion
On a position and time graph, what does a positive slope mean? The object is moving in a positive direction
On a position and time graph, what does a negative slope mean? The object is moving in a negative direction
On a position and time graph, what does a slope of zero mean? The object is not moving
On a velocity and time graph, what does a positive slope mean? The object is going fast (positive acceleration)
On a velocity and time graph, what does a negative slope mean? The object is sloing down (negative acceleration)
On a velocity and time graph, what does a slope of zero mean? The object is moving with a constant velocity (acceleartion is zero)
On a position and time graph, which is the independent variable (X axis)? Time
On a velocity and time graph, which is the dependent variable (Y axis)? Velocity
What is an example of Newton's first law? A baseball in space will not stop until it hits another object.
What is an example of Newton's second law? A train is harder to stop than a small car because it has more mass.
What is an example of Newton's third law? A bowling ball knocks over the pins.
What is the equation for force? F = m x a
What is the equation for velocity? V = d/t
What is the equation for acceleration? a = v/t
What is the equation for momentum? p = m x V
Created by: rshenk

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