Physics Study Guide: Horizontal & Vertical Acceleration
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What is positive acceleration?
Speeding up in the positive direction.
What is negative acceleration?
Slowing down in the positive direction.
What does it mean when velocity and acceleration have opposite signs?
It means the object is slowing down.
What is the acceleration due to gravity?
-9.8 m/s² when up is considered positive.
What does free fall mean?
Only gravity acts on the object.
What are the velocity and acceleration at the top of a free-falling object's path?
Velocity = 0, acceleration = -9.8 m/s².
What does a straight line on a Position–Time graph indicate?
Constant velocity.
What does a curved line on a Position–Time graph indicate?
Acceleration.
What does the slope of a Velocity–Time graph represent?
Acceleration.
What does a horizontal line on a Velocity–Time graph indicate?
Constant velocity.
What does the area under the curve on a Velocity–Time graph represent?
Displacement.
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