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Transcript
```Force and Motion 5.1
Mrs. Chastain
Vocabulary Week 1 – You will need 9 cards
S8P3a
• Determine the relationship between velocity and
acceleration.
Speed
• 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
travels.
• 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.
Velocity
• 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
Acceleration
• The rate at which velocity changes.
• A change in velocity can involve a change in speed or direction, or
both.
• In science it refers to increasing speed, decreasing speed, or
changing direction.
Force
• Using energy to do work.
• Examples: Pushing or pulling.
Motion
• An object is in motion if its distance from another object is
changing.
•