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Motion Review

QuestionAnswer
What is velocity? Speed in a given direction
What is speed? The measure measure of distance traveled per unit of time
Explain displacement. The change in position from an object’s original location
What is distance? The amount of ground an object has covered during its motion
Explain why deceleration is also acceleration. Deceleration is also acceleration because it’s still the change of speed and velocity
What does a flat line on a distance/time graph represent? Stopped
Greater slope up means ____________ on a distance/time graph. Constant speed away from starting point
Greater slope down means ____________ on a distance/time graph. Constant speed towards the starting position
What does a flat line on a velocity/time graph represent? Steady Speed
What does an upward slope on a velocity/time graph represent? Acceleration
What does a downward slope on a velocity/time graph represent? Deceleration
What does constant velocity mean? It means they the speed or directions is not changing
Tell three ways velocity can change. Slowing down, Speeding up, and Change in direction
If an object’s mass increases, its acceleration will ______________. also change
Force = _________ x ____________ Mass x acceleration
What are unbalanced forces? Unequal forces that act on an object.
What are balanced forces? Equal forces on an object in opposite directions
Net force = _______________ The sum of all forces acting on an object
What type of force does not cause acceleration? Balanced forces
What is magnitude? Sizes of the force
What is vector? Direction of the force
Explain Newton’s First Law of Motion. A object in motion will stay in motion and a object at rest will stay at rest unless a force is acting upon it.
Greater mass = __________ inertia Greater
Explain Newton’s Second Law of Motion. When a force acts on an object, the object will accelerate in the direction of the force
Explain Newton’s Third Law of Motion. Every force or action has an equal and opposite reaction
What is inertia? The tendency of an object to resist any change in its motion
What is another name for Newton’s First Law of Motion? Law of Inertia
What does air resistance depend upon? Size, Shape, Speed, and Surface
What is the formula for velocity? Distance divided by time
What is the difference between speed and velocity? Velocity is speed in a certain direction while speed is the distance over the amount of time traveled
What is the difference between mass and weight? Mass is the amount of matter in a object while weight is the amount of gravity that is pulling down on an object
How does your mass on Earth compare to your mass on the moon? Your mass will not change if your on Earth or on the Moon.
How does your weight on Earth compare to your weight on the moon? Your weight on Earth will be different than your weight on the moon
Explain friction. How does it affect the movement of an object? Friction is the rubbing of to object together. It affects the movement of on object by slowing the object down.
How does the mass of an object affect the amount of force needed to accelerate the object? The more mass an object has the more force needed to accelerate the object.
Explain how to solve a vector diagram (to determine a net force). You have to find the sum of all forces on an object to find the net force.
Created by: ltapley