Free Fall

Front

What is free fall?

Back

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

Front

What is the acceleration due to gravity on Earth?

Back

The acceleration due to gravity on Earth is approximately 9.81 m/s².

Front

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

Back

The velocity of an object in free fall increases by approximately 9.81 m/s every second.

Front

At the highest point of its trajectory, what is the final velocity of an object thrown straight up?

Back

The final velocity at the highest point is 0 m/s.

Front

Why do different objects fall at different rates in the presence of air?

Back

Different objects fall at different rates due to the effect of air resistance.

Front

Does an object in space experience free fall?

Back

Yes, an object in space experiences free fall if there is no air resistance.

Front

What is air resistance?

Back

Air resistance is a force that opposes the motion of an object through the air.

Front

What is terminal velocity?

Back

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

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is the formula for calculating weight?

Back

Weight (W) = mass (m) × acceleration due to gravity (g).