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MOTION REVIEW

QuestionAnswer
What is velocity? The speed of something in a given direction
What is speed? The time rate at which an object is moving along a path
Explain displacement. The moving of something from its place or position
What is distance? The amount of space between two things or people
Explain acceleration. Tell 3 ways an object can accelerate. Changes in velocity, direction, or both velocity and direction are ways that an object can accelerate
Explain why deceleration is also acceleration. Deceleration is also acceleration because it is in the direction opposite to the velocity
What does a flat line on a distance/time graph represent? It means that the object is not moving
Greater slope up means ____________ on a distance/time graph. Positive
Greater slope down means ____________ on a distance/time graph. Negative
What does a flat line on a velocity/time graph represent? It means the object is at a constant speed
What does an upward slope on a velocity/time graph represent? It means that the acceleration is rising
What does a downward slope on a velocity/time graph represent? It means that the speed is decreasing
What does constant velocity mean? The object in motion is moving in a straight line at a constant speed
Tell three ways velocity can change. The object can slow down, speed up, or change direction
If an object’s mass increases, its acceleration will ______________. Decrease
Force = _________ x ____________ Mass, acceleration
What are unbalanced forces? Unequal forces that act on an object
What are balanced forces? Equal forces that act 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 Force
What is magnitude? Size
What is vector? Direction
Explain Newton’s First Law of Motion. A body in motion is likely to stay in motion, and a body at rest will stay at rest unless an unbalanced force acts upon it.
Greater mass = __________ inertia Greater
Explain Newton’s Second Law of Motion. When a net force acts on an object, the object will accelerate in the direction of this net force.
Explain Newton’s Third Law of Motion. For every force or action, there is an equal and opposite reaction.
What is inertia? Inertia means that an object’s motion (speed and direction) will stay constant.
What is another name for Newton’s First Law of Motion? The Law of Inertia
What does air resistance depend upon? It depends on the size, shape, speed, and surface area of the falling object.
What is the formula for velocity? v= displacement/change in time
What is the difference between speed and velocity? Speed is just the time rate at which the object is moving and velocity is the speed of something in a given direction
What is the difference between mass and weight? Mass is a measure of how much force it will take to change a specific path, while weight is a measure of the amount of downwards force that gravity exerts on an object.
How does your mass on Earth compare to your mass on the moon? Your mass will not change
How does your weight on Earth compare to your weight on the moon? Your weight on Earth will weigh more than your weight on the moon
Explain friction. How does it affect the movement of an object? The force of friction opposes the motion of an object, causing objects to lose energy and slow down.
How does the mass of an object affect the amount of force needed to accelerate the object? The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of an object.
Created by: mayabible
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