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# motion review

what is velocity ? the speed of something in a given direction.
What is speed? the distance traveled per unit of time.
Explain displacement. the moving of something from its place or position.
What is distance? an amount of space between two things or people.
Explain acceleration. Tell three ways an object can accelerate. An object accelerates when its velocity changes as a result of increasing speed, decreasing speed, or a change in direction Acceleration has a direction. Acceleration can be represented by an arrow.
Explain why deceleration is also acceleration. ts acceleration is opposite to the direction of its motion.
What does a flat line on a distance/time graph represent? Speed or velocity is plotted on the Y-axis. A straight horizontal line on a speed-time graph means that speed is constant.
Greater slope up means ____________ on a distance/time graph. the object is returning to the start.
Greater slope down means ____________ on a distance/time graph. the object is returning to the start.
What does a flat line on a velocity/time graph represent? If 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?
What does a downward slope on a velocity/time graph represent?
What does constant velocity mean?
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 ______________.
Force = _________ x ____________ Mass x Acceleration.
What are unbalanced forces? cause a change in the motion of an object.
What are balanced forces? two forces acting in opposite directions on an object, and equal in size.
Net force = _______________ the sum of all forces on an object
What type of force does not cause acceleration?
What is magnitude? the great size or extent of something.
What is vector? a quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another.
Explain Newton’s First Law of Motion. an object will remain at rest or inform motion in a straight line unless acted upon by an external face .
Greater mass = __________ inertia more
Explain Newton’s Second Law of Motion. the acceleration of an object is dependent upon two variables.
Explain Newton’s Third Law of Motion. the force is a push or pull that acts upon on objects as a results of its interaction with another object.
What is inertia? another word for Newton's First Law of Motion.
What is another name for Newton’s First Law of Motion? law of inertia
What does air resistance depend upon? affects the motion of the falling objects by slowing it down.
What is the formula for velocity? The formula for velocity is change in displacement divided by change in time
What is the difference between speed and velocity? Speed is the distance traveled per unit of time. velocity specifically refers to the measurement of the rate and direction of change in position of an object
What is the difference between mass and weight? Mass is a measure of the amount of matter in an object The weight of an object is the force of gravity on the object.
How does your mass on Earth compare to your mass on the moon?
How does your weight on Earth compare to your weight on the moon?
Explain friction. How does it affect the movement of an object?
How does the mass of an object affect the amount of force needed to accelerate the object?
Created by: chasityq