1.2 Free Fall

Front

What happens to the velocity of a baseball as it rises in the air?

Back

The velocity decreases.

Front

What happens to the acceleration of a baseball as it rises in the air?

Back

The acceleration remains constant.

Front

What is the acceleration of a ball in free fall?

Back

The acceleration is constant at approximately 9.81 m/s² downward.

Front

What happens to the speed of a freely falling object after 6 seconds?

Back

It will have a speed of about 60 m/s.

Front

What is the relationship between the speed of a ball when thrown upwards and when it is caught at the same height?

Back

The speed is the same when caught as when thrown upwards.

Front

Define free fall.

Back

Free fall is the motion of an object under the influence of gravitational force only.

Front

What is the effect of air resistance on free fall?

Back

Air resistance opposes the motion and reduces the acceleration of the falling object.

Front

What is the formula to calculate the speed of a freely falling object?

Back

v = g * t, where v is speed, g is acceleration due to gravity (9.81 m/s²), and t is time in seconds.

Front

What is the significance of the top of the path of a ball in free fall?

Back

At the top of the path, the velocity is zero, but the acceleration due to gravity is still acting on the ball.

Front

Explain the concept of constant acceleration in free fall.

Back

In free fall, the acceleration remains constant at 9.81 m/s² regardless of the object's velocity.