Physics Chapter 2: Free Fall Motion

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What is the acceleration of a freely falling body denoted by?

g (correct)
f
m
a

When an object is thrown vertically upwards, how is its displacement considered?

Undefined
Zero
Negative
Positive (correct)

In the equation $v = u + at$, what does 'u' represent?

Acceleration
Final velocity
Time
Initial velocity (correct)

What happens to the acceleration due to gravity when an object is thrown upwards?

It remains constant (D) Signup and view all the answers

Which of the following equations relates the displacement, acceleration, and initial and final velocities?

$v^2 = u^2 + 2as$ (C) Signup and view all the answers

What characterizes a freely falling object?

It is any object moving influenced only by gravity. (D) Signup and view all the answers

How is the initial velocity (u) defined for an object thrown vertically upward?

Positive, as it is directed upward. (B) Signup and view all the answers

What is the direction of the acceleration due to gravity (g) for a freely falling object?

Always directed down towards the center of the Earth. (A) Signup and view all the answers

What happens to the velocity of a falling ball over time?

It increases uniformly due to acceleration. (D) Signup and view all the answers

Which of the following statements is true regarding the equations of motion for free fall?

They require replacing acceleration (a) with gravity (g). (B) Signup and view all the answers

Free Fall

The movement of an object up or down due to the force of gravity.

Acceleration due to Gravity (g)

The constant acceleration experienced by objects in free fall, approximately 9.8 m/s² near the Earth's surface.

Direction of displacement and acceleration in free fall

In free fall, when an object is thrown upward, the displacement (change in position) is taken as positive, but since gravity acts downwards, the acceleration due to gravity is taken as negative.

Equation: v = u + at

A formula used to calculate the final velocity (v) of an object in free fall, where u is the initial velocity, a is the acceleration due to gravity (g), and t is the time.