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Motion in a Straight Line Concepts

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Questions and Answers

What is the defining characteristic of an object in motion?

Moving randomly

Changing position with time (correct)

Having a constant position

Remaining stationary

How is path length defined?

Total speed of an object

Total time taken by an object

Total distance traveled by an object (correct)

Total displacement of an object

When is an object considered to be in uniform motion?

When it covers equal distances in equal times (correct)

When its speed is constant

When it moves randomly

When its speed changes

What is the relationship between path length and displacement?

Path length is always greater than displacement (D) Signup and view all the answers

How is average speed calculated?

Total distance divided by total time taken (D) Signup and view all the answers

What does instantaneous velocity represent?

The velocity at a specific instant of time (B) Signup and view all the answers

What is the relationship between velocity and acceleration at a particular instant?

Acceleration is the slope of the tangent on the velocity-time graph (B) Signup and view all the answers

Which graph represents uniform motion?

Position-time graph as a straight line inclined to the time axis (D) Signup and view all the answers

What does the area under the velocity-time curve represent?

Displacement of the object during that interval of time (B) Signup and view all the answers

What are the SI units for average acceleration?

m/s2 (C) Signup and view all the answers

In uniformly accelerated rectilinear motion, what set of equations relates displacement, time, initial velocity, final velocity, and acceleration?

Kinematic equations of motion (C) Signup and view all the answers

What is centripetal acceleration?

Acceleration of an object undergoing uniform circular motion (C) Signup and view all the answers