Motion in Physics: Understanding Kinematics and Mechanics
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Questions and Answers

What is the total length of the path covered by the person moving from A to B?

  • 40 km
  • 16 km or 24 km (correct)
  • 20 km
  • 6 km

What is the net displacement of the person when they move back from B to A?

  • 6 km
  • 0 km (correct)
  • 24 km
  • 16 km

What is the difference between distance and displacement?

  • Distance is a scalar quantity, displacement is a vector quantity (correct)
  • Distance is a vector quantity, displacement is a scalar quantity
  • Distance is measured in a straight line, displacement is measured in a curve
  • Distance is measured in a curve, displacement is measured in a straight line

What is the displacement of the person from A to B?

<p>6 km (D)</p> Signup and view all the answers

What is the S.I unit of distance and displacement?

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

What is the primary focus of the branch of Mechanics known as Kinematics?

<p>The study of motion without reference to force (A)</p> Signup and view all the answers

What is the state of an object that does not change its position with respect to its surroundings?

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

What is the term used to describe the branch of physics that deals with the study of motion of objects?

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

What happens to the position of an object in motion with respect to its surroundings?

<p>It changes continuously (A)</p> Signup and view all the answers

What is the Greek word that means 'motion' and is the origin of the word 'kinematics'?

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

What is the state of a car that is not moving with respect to the trees and bushes around it?

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

What is the primary characteristic of scalar quantities?

<p>Magnitude and a suitable unit (C)</p> Signup and view all the answers

What is the definition of vector quantities?

<p>Quantities with magnitude, a suitable unit, and a particular direction (C)</p> Signup and view all the answers

Which of the following is an example of a scalar quantity?

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

What is the difference between scalar and vector quantities?

<p>Scalar has magnitude and unit, vector has magnitude, unit, and direction (C)</p> Signup and view all the answers

Which of the following is an example of a vector quantity?

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

What is the purpose of a unit in scalar quantities?

<p>To provide a standard for measurement (B)</p> Signup and view all the answers

What is the acceleration of the bus in the given scenario?

<p>3m/s² (D)</p> Signup and view all the answers

What is the deceleration of the motorcycle in the worked example?

<p>1.4m/s² (B)</p> Signup and view all the answers

What is the change in velocity of the motorcycle in the worked example?

<p>10m/s (D)</p> Signup and view all the answers

What is the time taken by the motorcycle to slow down in the worked example?

<p>3 seconds (A)</p> Signup and view all the answers

What is the significance of the negative sign in the deceleration of the motorcycle?

<p>It indicates retardation in the opposite direction of velocity (B)</p> Signup and view all the answers

What is the condition for a body to be considered in motion?

<p>If it changes its position with respect to its surroundings (C)</p> Signup and view all the answers

What is the relationship between rest and motion?

<p>Rest and motion are relative states (C)</p> Signup and view all the answers

What is the example of a body being at rest and in motion at the same time?

<p>A passenger sitting in a moving bus (C)</p> Signup and view all the answers

What is the nature of motion of all objects in the universe?

<p>All objects are in motion, but the nature of their motion is different (B)</p> Signup and view all the answers

What is the reference point for an observer to determine if a body is in motion or at rest?

<p>The surroundings of the body (B)</p> Signup and view all the answers

What is the significance of the example of a passenger flying on an aeroplane?

<p>It shows that motion is always relative (B)</p> Signup and view all the answers

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