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Force and Motion 5.1
Mrs. Chastain
Vocabulary Week 1 – You will need 9 cards
• Determine the relationship between velocity and
• The speed of an object is the distance the object travels per unit
of time.
• the rate at which someone or something moves or travels
Average Speed
• The speed of most moving objects is not constant.
• Speed of an object may change based on the terrain on which it
• To calculate average speed, divide the total distance traveled by
the total time.
• Example of average speed: 45km/3h = 15 km/h
Instantaneous Speed
• The Rate at which an object is moving at a given instant in time.
• Example: The speedometer of a car reveals information about
the instantaneous speed of your car. It shows your speed at a
particular instant in time. On the average, your car was moving
with a speed of 25 miles per hour.
Constant Speed
• Speed that does not change; it stays constant.
• Speed in a given direction.
• The rate at which an object changes its position.
• Ex. If you know the velocity of a storm if you know it is moving
25mph eastward.
Velocity Continued
• The equation or formula for velocity is similar to speed. To figure
out velocity, you divide the distance by the time it takes to travel
that same distance, then you add your direction to it.
• The rate at which velocity changes.
• A change in velocity can involve a change in speed or direction, or
• In science it refers to increasing speed, decreasing speed, or
changing direction.
• Using energy to do work.
• Examples: Pushing or pulling.
• An object is in motion if its distance from another object is
* How far out of place an object is; it is the object's overall change
in position.
• An object's change in position considering its starting position and
final position.
•Complete Coach Book Lesson 18