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 acceleration of an object in free fall?

Back

The acceleration remains constant at approximately 9.81 m/s², directed downward.

Front

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

Back

The velocity of an object in free fall increases as it falls.

Front

In free fall, what direction is the acceleration acting?

Back

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

Front

What is the effect of air resistance on free fall?

Back

Air resistance opposes the motion of the falling object, reducing its acceleration and terminal velocity.

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 does the mass of an object affect its free fall?

Back

In free fall, all objects accelerate at the same rate regardless of their mass, assuming no air resistance.

Front

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

Back

The distance fallen can be calculated using the formula: d = 0.5 * g * t², where g is the acceleration due to gravity and t is the time.

Front

What is the relationship between time and distance in free fall?

Back

The distance fallen increases with the square of the time, meaning if time doubles, the distance fallen increases by a factor of four.

Front

What is the difference between free fall and projectile motion?

Back

Free fall is vertical motion under gravity, while projectile motion involves both horizontal and vertical motion.