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PS Chpater 5

Matter in Motion

QuestionAnswer
What is an object's change in position relative to a reference point? Motion
What is the distance traveled divided by the time interval during which the motion occured? Speed
What is the speed of an object in a particular direction? Veloctiy
What is the rate at which velocity changes over time; an object accelerates if its speed, direction, or both change? Acceleration
What is a push or a pull exerted on an object in order to change the motion of the object; force has size and direction? Force
What is the SI unit for force (symbol, N)? Newton
What is the combination of all the forces acting on an object? Net Force
What is a force that opposes motion between two surfaces that are in contact? Friction
What is a force of attraction between objects that is due to their masses? Gravity
What is a meausure a measure of the gravitational force exerted on an object;its value can change with the location of the object in the universe? Weight
What is a meausure of the amount of matter in an object? Mass
Created by: apmazaika
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