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9 Speeding Up

Speeding up flashcards

The total distance something travels divided by the total time. mean speed
How fast something is moving. speed
Change speed (increase). accelerate
A force that tries to slow down things that are moving through the air. It is a type of friction. air resistance
When two forces are the same strength, but working in opposite directions. balanced forces
A force that tries to slow things down when two things rub against each other. friction
When two forces working in opposite directions are not the same strength. unbalanced forces
Another name for air resistance or water resistance. drag
Giving something a smooth shape to reduce the air resistance or water resistance. streamlined
A force that tries to slow down things that are moving through water. It is a type of friction. water resistance
A graph that shows how far something has moved in a certain time. distance–time graph
The maximum speed of an object. Usually only applies to falling objects when the downward force is balanced by drag. terminal velocity
The rate of decrease in the speed of an object. Deceleration
The rate of increase in the speed of an object. Acceleration
Describes an object that isn't moving. Stationary
A visual display which records changes in motion. Speed-time graph
Created by:
Popular Physics sets




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