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Forces Motion and Energy: Chapter 1 Section 1
Vocabulary words for chapter 1 section 1
12
Science
6th Grade
04/30/2012

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Term
Motion
Definition
An object changes position over time relative to a reference point
Term
Reference point
Definition
the object that appears to stay in place when comparing an objects movement when compared to it
Term
Formula for Speed
Definition

Speed =Distance

          Time

 

Term
Speed
Definition
Speed is the distance an object travels in a given amount of time.
Term

Average speed

 

 

 

and FORMULA

Definition

the average distance an object travels in given amount of time

 

 

 

Average speed = total distance

                       total speed

Term
Velocity
Definition
the speed of an object moving in a given direction
Term
Changing Velocity
Definition
Velocity changes when an objects speed OR direction changes
Term
Acceleration
Definition

when an object goes faster OR slower

 

A change in velocity in a positive or negative direction

Term
Formula for Average Acceleration
Definition

average acceleration = final velocity - starting velocity

                                   time it takes to change velocity

 

 

 

acceleration = Vf -Vs

                   T

Term
Net force
Definition
the overall force in a given direction
Term
newton
Definition
the term used to measure force
Term
friction
Definition
the force that works againist motion
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