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# Motion Review

What is velocity? Velocity is a physical vector quantity; both magnitude and direction are needed to define it.
What is speed? Speed is the distance traveled per unit of time. It is how fast an object is moving.
Explain displacement. The moving of something from its place or position.
What is distance? Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion.
Explain acceleration. Tell three ways an object can accelerate. Increase in the rate or speed of something. Three ways: Speed , Velocity, and Both.
Explain why deceleration is also acceleration. Deceleration always refers to acceleration in the direction opposite to the direction of the velocity. It always reduces speed.
What does a flat line on a distance/time graph represent? A straight horizontal line on a speed-time graph means that speed is constant.
Greater slope up means ____________ on a distance/time graph. More distance/time
Greater slope down means ____________ on a distance/time graph. Less distance/time
What does a flat line on a velocity/time graph represent? The line is flat and horizontal, the object is traveling at a constant speed.
What does an upward slope on a velocity/time graph represent? line slopes upward from left to right, this means the object is speeding up. Its acceleration will be positive.
What does a downward slope on a velocity/time graph represent? Line slopes downward from left to right, this means the object is slowing down. Its acceleration will be positive.
What does constant velocity mean? When an object travels the same distance every second, then the object is said to be moving with constant velocity.
Tell three ways velocity can change. It can slow down, It can speed up, or It can change direction.
If an object’s mass increases, its acceleration will ______________. Decreases
Force = _________ x ____________ Mass x Distance
What are unbalanced forces? Unbalanced forces are forces that cause a change in the motion of an object.
Created by: Deathwish97