1.2 Free Fall

Front

What is acceleration?

Back

Acceleration is the change in velocity over a given time period.

Front

What direction is the acceleration of an object thrown upward?

Back

The acceleration of an object thrown upward is downward due to gravity.

Front

What is the direction of velocity for an object thrown upward?

Back

The direction of velocity for an object thrown upward is upward.

Front

If a ball is thrown upward with an initial speed of 30 m/s, what happens to its speed as it rises?

Back

The speed of the ball decreases as it rises until it reaches its peak.

Front

What happens to the speed of a ball when it starts to fall back down after being thrown upward?

Back

The speed of the ball increases as it falls back down.

Front

In a vacuum, do different objects fall at different rates?

Back

No, in a vacuum, all objects fall at the same rate regardless of their mass.

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) = (final velocity - initial velocity) / time.

Front

What is free fall?

Back

Free fall is the motion of an object under the influence of gravity only, with no other forces acting on it.

Front

What is the effect of air resistance on free fall?

Back

Air resistance opposes the motion of falling objects, affecting their acceleration and speed.

Front

What is terminal velocity?

Back

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