Free Fall Kinematics

Front

What is Free Fall?

Back

Free fall is the motion of a body where gravity is the only force acting upon it, resulting in acceleration towards the Earth at approximately 9.8 m/s².

Front

What is the formula for calculating the final velocity of an object in free fall?

Back

The formula is v = u + gt, where v is the final velocity, u is the initial velocity, g is the acceleration due to gravity (9.8 m/s²), and t is the time in seconds.

Front

What is the initial speed of an object dropped from a height?

Back

The initial speed of an object dropped from a height is 0.0 m/s.

Front

How do you calculate the distance fallen in free fall?

Back

The distance fallen can be calculated using the formula d = ut + (1/2)gt², where d is the distance, u is the initial velocity, g is the acceleration due to gravity, and t is the time.

Front

What is the acceleration of an object in free fall on the Moon?

Back

The acceleration of an object in free fall on the Moon is approximately 1.6 m/s².

Front

What is the maximum height reached by an object thrown upwards?

Back

The maximum height can be calculated using the formula h = (v² - u²) / (2g), where v is the final velocity (0 at the peak), u is the initial velocity, and g is the acceleration due to gravity.

Front

What is the time of fall for an object dropped from a height of 40 meters?

Back

The time of fall can be calculated using the formula t = √(2d/g), where d is the height and g is the acceleration due to gravity.

Front

What is the effect of air resistance on free fall?

Back

Air resistance opposes the motion of falling objects, reducing their acceleration and final velocity compared to free fall in a vacuum.

Front

What is the significance of the term 'terminal velocity'?

Back

Terminal velocity is the constant speed reached by an object when the force of air resistance equals the force of gravity, resulting in no further acceleration.

Front

How does mass affect free fall?

Back

In free fall, all objects accelerate at the same rate regardless of their mass, as long as air resistance is negligible.