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Motion Vocabulary
From Kaitlin Spierings - Ripon High School - Ripon, WI - 2012 - Semester 2
11
Science
9th Grade
02/06/2012

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Cards

Term
Weight
Definition
The quantity of heaviness, taking into account gravity.
Term
Mass
Definition
Measure of how much matter is in an object.
Term
Force
Definition
Strength put on an object; has direction (is a vector quantity); measured as newtons.
Term
Friction
Definition
The resistance of one surface has on another object or surface.
Term
Gravity
Definition
Force on an object to tend to fall towards the center of the earth.
Term
Newton
Definition
A unit to measure force; equals: 1kg * m/s2 
Term
Inertia
Definition
A characteristic of matter which states the object will continue in its existing state of rest or motion unless an outside force acts on it (Latin word means lazy).
Term
Negative Acceleration
Definition

 When acceleration is in a direction opposite to the velocity or in the 

direction of the negative axis on the velocity vs. time grap.

Term
Positive Acceleration
Definition

When the velocity vs. time graph has a positive slope; velocity is 

increasing.

Term
Instantaneous
Definition

The speed at a given moment.

(ex: a car’s speedometer)

Term
Average Speed
Definition

Calculated using the total distance traveled and the total time traveled

Web to show the difference between instantaneous &average speed.

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