Free Fall

Front

What is free fall?

Back

Free fall is the motion of an object under the influence of gravitational force only, without any air resistance.

Front

What happens to the velocity of an object thrown upward as it rises?

Back

The velocity decreases as the object rises due to the force of gravity acting against its motion.

Front

What happens to the acceleration of an object in free fall?

Back

The acceleration remains constant at approximately 9.81 m/s², regardless of the object's velocity.

Front

What happens to the velocity of an object in free fall as it falls?

Back

The velocity increases as the object falls due to the acceleration of gravity.

Front

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

Back

The direction of the velocity is upward.

Front

What is the direction of the acceleration of an object in free fall?

Back

The direction of the acceleration is downward, towards the center of the Earth.

Front

If a ball is thrown upward with an initial speed of 30 m/s, what will be its speed when it is moving downward at the same height?

Back

The speed will be 30 m/s when it returns to the same height.

Front

What is terminal velocity?

Back

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

Front

How does air resistance affect free fall?

Back

Air resistance opposes the motion of falling objects, reducing their acceleration and terminal velocity.

Front

What is the formula for calculating the distance fallen in free fall?

Back

The formula is d = 0.5 * g * t², where d is distance, g is acceleration due to gravity, and t is time.