Front

What is free fall?

Back

Free fall is the motion of an object under the influence of gravitational force only, with no other forces acting on it.

Front

What is the acceleration due to gravity?

Back

The acceleration due to gravity is approximately 9.81 m/s² near the surface of the Earth.

Front

What does the symbol 'vi' represent in kinematic equations?

Back

The symbol 'vi' represents the initial velocity of an object.

Front

What does the symbol 'vf' represent in kinematic equations?

Back

The symbol 'vf' represents the final velocity of an object.

Front

What is the kinematic equation for velocity?

Back

The kinematic equation for velocity is vf = vi + at, where 'a' is acceleration and 't' is time.

Front

What happens to the velocity of a ball thrown upwards as it rises?

Back

The velocity of the ball decreases as it rises until it reaches its maximum height.

Front

What happens to the velocity of a ball in free fall?

Back

The velocity of a ball in free fall increases as it falls due to the acceleration of gravity.

Front

What is the relationship between acceleration and velocity in free fall?

Back

In free fall, acceleration is constant (9.81 m/s²) and acts downwards, while velocity increases in the direction of acceleration.

Front

What is the significance of the maximum height in free fall?

Back

At maximum height, the velocity of the object is 0 m/s before it starts to fall back down.

Front

What does the term 'displacement' mean in kinematics?

Back

Displacement is the change in position of an object, measured as a straight line from the initial to the final position.