Motion in One Dimension Quiz
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Questions and Answers

Define average speed of an object.

Total distance traveled divided by time taken

What distinguishes velocity from speed?

Velocity includes both magnitude and direction; it is a vector quantity

When do average speed and average velocity have the same magnitude?

When the motion is all in one direction

Define instantaneous velocity.

<p>The limiting value of the ratio ∆x / ∆t as ∆t approaches zero</p> Signup and view all the answers

What does it mean when a particle is said to be accelerating?

<p>When the velocity of the particle changes with time</p> Signup and view all the answers

What is the difference between average speed and instantaneous speed?

<p>Average speed is the total distance traveled divided by total time, while instantaneous speed is the magnitude of the instantaneous velocity.</p> Signup and view all the answers

Explain the concept of instantaneous velocity and how it relates to the limiting value of a ratio.

<p>Instantaneous velocity is the velocity of an object at a specific instant in time. It is calculated as the limiting value of the ratio of change in position to change in time as the time interval approaches zero.</p> Signup and view all the answers

When does a particle have zero acceleration?

<p>A particle has zero acceleration when its velocity remains constant over time.</p> Signup and view all the answers

How is velocity different from speed in terms of direction?

<p>Velocity is a vector quantity that includes both magnitude (speed) and direction, while speed is a scalar quantity that only includes magnitude.</p> Signup and view all the answers

Explain the relationship between average speed and average velocity when the motion is not in a straight line.

<p>When the motion is not in a straight line, average speed and average velocity may differ in magnitude and direction due to changes in the path taken.</p> Signup and view all the answers

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