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Motion Review

Carter S8P3 Motion Review

What is velocity? Speed of something in a given direction
What is speed? Distance traveled per unit of time
Explain displacement Displacement is the distance between the starting point and ending point; not necessarily its full path
What is distance? The full path an object took to get from one point to another
Explain acceleration. Tell three ways an object can accelerate. Acceleration is a change in speed or direction. An object can slow down, speed up, or turn
Explain why deceleration is also acceleration. It is still changing speed
What does a flat line on a distance/time graph represent? Not moving
Greater slope up means ____________ on a distance/time graph. Moving away from starting position
Greater slope up means ____________ on a distance/time graph. Moving away from starting position
What does a flat line on a velocity/time graph represent? Constant speed
What does an upward slope on a velocity/time graph represent? Increasing speed
What does a downward slope on a velocity/time graph represent? Decreasing speed
What does constant velocity mean? Not speeding up or slowing down
Tell three ways velocity can change. It can slow down, speed up, or change direction
If an object’s mass increases, its acceleration will ______________. Decrease
Force = _________ x ____________ Mass x velocity
What are unbalanced forces? The sum of all forces is not equal to 0
What are balanced forces? The sum of all forces is 0
Net force = _______________ The sum of all forces
What type of force does not cause acceleration? Balanced force
What is magnitude? Size or extent of a vector
What is vector? A force with both direction and magnitude
Explain Newton’s First Law of Motion. An object in motion will stay in motion, and an object at rest will stay at rest
Greater mass = __________ inertia Greater
Explain Newton’s Second Law of Motion. Acceleration depends on mass and net force
Explain Newton’s Third Law of Motion. For every action, there is an equal and opposite reaction.
What is inertia? An object in motion will stay in motion, and an object at rest will stay at rest
What is another name for Newton’s First Law of Motion? Law of inertia
What does air resistance depend upon? Speed and surface area
What is the formula for velocity? Distance / Time
What is the difference between speed and velocity? Velocity is speed in a given direction
What is the difference between mass and weight? Mass is constant, weight depends on gravity
How does your mass on Earth compare to your mass on the moon? They are the same
How does your weight on Earth compare to your weight on the moon? Earth weight is heavier
Explain friction. How does it affect the movement of an object? It slows it down
How does the mass of an object affect the amount of force needed to accelerate the object? More mass needs more force
Explain how to solve a vector diagram (to determine a net force). Add all forces acting on the object
Created by: owenflegal23