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Physics: Free-Falling Objects

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Questions and Answers

What is the direction of the violet arrows in uniformly accelerated motion?

In the positive direction
In the horizontal direction
In the opposite direction (correct)
In the vertical direction

What is the primary contribution of Galileo Galilei in physics?

Formulation of concepts and calculations governing free fall motion (correct)
Formulation of concepts governing uniformly accelerated motion
Invention of the inclined plane
Discovery of gravity

What is the term used to describe a negative acceleration?

Acceleration
Deceleration
Retardation
All of the above (correct)

What is the definition of free fall motion?

Any motion of an object or body solely influenced by gravity (D) Signup and view all the answers

Why did Galileo Galilei use an inclined plane in his experiment?

To reduce the acceleration (D) Signup and view all the answers

What is the shape of the position vs. time graph for uniformly accelerated motion?

Parabolic (D) Signup and view all the answers

What is an example of free fall motion?

The descent of a bungee jumper until the cord becomes taut (C) Signup and view all the answers

What is the defining characteristic of uniformly accelerated motion?

A constant or steady acceleration in both magnitude and direction (A) Signup and view all the answers

What happens to the velocity of an object in uniformly accelerated motion?

It increases or decreases at the same rate throughout the motion (B) Signup and view all the answers

What is a common example of uniformly accelerated motion?

An object falling towards the Earth's surface (D) Signup and view all the answers

What can be observed when a hardbound book and a piece of paper are dropped from the same height simultaneously?

The book and paper fall at the same rate (B) Signup and view all the answers

What is the term used to describe the motion of a projectile, like a thrown ball?

Projectile motion (D) Signup and view all the answers

What is the acceleration of an object in free fall due to gravity?

–9.8 m/s² (D) Signup and view all the answers

What is the direction of the acceleration of an object moving with negative uniform acceleration?

downward (C) Signup and view all the answers

Which of the following factors does not affect the acceleration of an object in free fall?

mass (D) Signup and view all the answers

What is the minimum height from which an object must be thrown upward to reach a maximum height of 0.30 m?

0.30 m (B) Signup and view all the answers

A ball is thrown downward from a height. What is its acceleration as it falls?