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EXAM STUDY TIME, freefall
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9
Physics
9th Grade
07/24/2009

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Cards

Term
How did Galileo develope the concept of acceleration?
Definition
The use of inclined planes.
Term
Do all objects fall at the same rate of acceleration?
Definition
Yes.
Term
What is gravity?
Definition
The force of attraction between objects.
Term
What is Freefall?
Definition
When an object falls with only the force of gravity acting on it.
Term
During freefall,what happens to velocity after each second?
Definition
It changes.
Term
What is the value of gravity?
Definition
-9.8m/s^2
Term
What happens to acceleration during freefall?
Definition
It remains constant.
Term
Explain the changes of velocity as you throw an object upward.
Definition
As the object goes up, velocity decreases, at it's highest point velocity is 0, and as the object falls velocity increases.
Term
When you catch an object at the same distance you threw it at what is the velocity?
Definition
The same as when you threw it.
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