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?

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

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

<p>To reduce the acceleration (D)</p> Signup and view all the answers

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

<p>Parabolic (D)</p> Signup and view all the answers

What is an example of free fall motion?

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

What is the defining characteristic of uniformly accelerated motion?

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

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

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

What is a common example of uniformly accelerated motion?

<p>An object falling towards the Earth's surface (D)</p> 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?

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

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

<p>Projectile motion (D)</p> Signup and view all the answers

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

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

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

<p>downward (C)</p> Signup and view all the answers

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

<p>mass (D)</p> 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?

<p>0.30 m (B)</p> Signup and view all the answers

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

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

An object is dropped from a height and falls for 7 seconds. What is the acceleration of the object?

<p>–9.8 m/s² (B)</p> Signup and view all the answers

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