Physics Quiz 8

THIS SEEMS PROBLEMATIC

What is free-fall?

Freefall is when an object has no force acting on it, except gravity.

How does the acceleration of objects with different mass compare when they are in free-fall?

The acceleration is all the same, 10m/s/s

How does air resistance affect the motion of lightweight objects (coffee filter/paper/feathers) as they
fall?

How resistance can slow an object's acceleration.

What does it mean for an object to fall with constant acceleration? What does this tell us about the change in position of an object as it falls? What does this tell us about the change in velocity of the object as it falls?

Consistent velocity: The object Changes velocity at a consistent amount. So it is changing position at a constant rate. The velocity changes by the same amount each time.

What is the acceleration of the object as it rises, reaches the top, and then falls back down?

As it rises, it is downwards, as it reaches a the top it is downwards, and as it falls back down the downwards

How does the initial velocity that you throw an object upward relate to the time spent in the air?

acceleration = -10m/s/s → vi+at=vf

How does the velocity at which it was thrown compare to the velocity at which it was caught?

The are the same but opposite signs