Freefall Review

Front

What is freefall?

Back

Freefall is the motion of an object falling solely under the influence of gravity, with no other forces acting on it.

Front

What is the acceleration due to gravity on Earth?

Back

The acceleration due to gravity on Earth is approximately -9.8 m/s².

Front

What is the initial velocity (v_i) of a freely falling object dropped from rest?

Back

The initial velocity (v_i) of a freely falling object dropped from rest is 0 m/s.

Front

How does the speed of a free falling object change over time?

Back

The speed of a free falling object increases by approximately 10 m/s for each second of freefall.

Front

What is the direction of freefall?

Back

The direction of freefall is always downward, towards the center of the Earth.

Front

What happens to a feather and a metal bolt dropped in a vacuum?

Back

In a vacuum, both a feather and a metal bolt will hit the ground at the same time.

Front

What is the formula to calculate the final velocity (v_f) of a free falling object?

Back

The formula is v_f = v_i + a*t, where v_i is the initial velocity, a is the acceleration, and t is the time.

Front

What is the effect of air resistance on freefall?

Back

Air resistance opposes the motion of falling objects, causing them to fall slower than they would in a vacuum.

Front

What is terminal velocity?

Back

Terminal velocity is the constant speed reached by an object when the force of air resistance equals the force of gravity.

Front

How do you calculate the distance (d) fallen by a free falling object?

Back

The distance fallen can be calculated using the formula d = v_i*t + 0.5*a*t².