Motion in a Straight Line: Displacement & Velocity
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Questions and Answers

What does the slope of a velocity-time graph represent?

  • Velocity
  • Displacement
  • Position
  • Acceleration (correct)

What is the branch of physics that describes the motion of objects without considering the causes of the motion?

  • Thermodynamics
  • Dynamics
  • Kinematics (correct)
  • Statics

What is the acceleration of an object in free fall on Earth (approximately)?

  • 1 m/s²
  • 9.8 m/s² (correct)
  • 0 m/s²
  • 4.9 m/s²

Which of the following is a vector quantity?

<p>Displacement (A)</p> Signup and view all the answers

Which of the following kinematic equations relates final velocity (v), initial velocity (u), acceleration (a), and displacement (s)?

<p>$v^2 = u^2 + 2as$ (A)</p> Signup and view all the answers

What is the total length of the path traveled by an object?

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

What does the area under an acceleration-time graph represent?

<p>Change in Velocity (D)</p> Signup and view all the answers

If object A has a velocity of 10 m/s and object B has a velocity of 5 m/s in the same direction, what is the velocity of object A relative to object B?

<p>5 m/s (D)</p> Signup and view all the answers

What is the rate of change of displacement?

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

What is the rate of change of distance?

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

What is the rate of change of velocity?

<p>Acceleration (A)</p> Signup and view all the answers

What is the value of acceleration in uniform motion?

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

What type of motion occurs when an object moves with constant acceleration?

<p>Uniformly Accelerated Motion (D)</p> Signup and view all the answers

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Flashcards

Velocity-Displacement Equation

v^2 = v_i^2 + 2aΔx relates final velocity (v) to initial velocity (v_i), acceleration (a), and displacement (Δx).

Free Fall

Motion solely under gravity's influence.

Velocity-Time Graph Slope

The slope indicates acceleration.

Velocity-Time Graph Area

The area represents the displacement of an object.

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Relative Velocity

Velocity of an object with respect to another.

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Displacement

Change in position of an object; a vector quantity with magnitude and direction.

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Distance

Total length of the path traveled by an object; a scalar quantity with only magnitude.

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Velocity

Rate of change of displacement; a vector quantity.

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Speed

Rate of change of distance; a scalar quantity.

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Acceleration

Rate of change of velocity; a vector quantity.

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Uniform Motion

Motion with constant velocity; acceleration is zero.

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Uniformly Accelerated Motion

Motion with constant acceleration.

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Kinematics

Branch of physics describing motion without considering its causes.

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Study Notes

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Description

Learn about motion in one dimension, focusing on displacement and velocity. Understand the differences between displacement and distance, and how to calculate average velocity. This covers fundamental concepts in kinematics.

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