## Class 9 Science Case Study Questions Chapter 8 Motion

Case study Questions in Class 9 Science Chapter 8 are very important to solve for your exam. Class 9 Science Chapter 8 Case Study Questions have been prepared for the latest exam pattern. You can check your knowledge by solving Class 9 Science Case Study Questions Chapter 8 Motion

In CBSE Class 9 Science Paper, Students will have to answer some questions based on Assertion and Reason. There will be a few questions based on case studies and passage-based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.

# Motion Case Study Questions With Answers

Here, we have provided case-based/passage-based questions for Class 9 Science Chapter 8 Motion

Case Study/Passage-Based Questions

Case Study 1: Answer the following questions by observing following diagram

(i)What is distance and displacement when the particle moves from point A to B?

(a)distance is equal to the displacement

(b)distance is greater than and equal to the displacement

(c)distance is lesser than and equal to the displacement

(d)none of the above

Answer: (a)distance is equal to the displacement

(ii)What is Displacement when the particle moves from point A to D?

(a) 15km

(b) 20km

(c) 10km

(d) none of the above

(iii) What is Displacement when particle moves from point A to C through A-B-C?

(a) 10km

(b) 20km

(c) 10√2 km

(d) none of the above

(iv) Find distance covered when particle moves in path ABCDA i.e. starts from A and ends at A?

(a) 10km

(b) 0km

(c) 40 km

(d) none of the above

(v) Find Displacement covered when particle moves in path ABCDA i.e. starts from A and ends at A?

(a) 10km

(b) 0km

(c) 40 km

(d) none of the above

Case Study 2:

Distance is the length of the actual path covered by an object, irrespective of its direction of motion. Displacement is the shortest distance between the initial and final positions of an object in a given direction.
Distance is a scalar quantity. Displacement is a vector quantity. Distance covered can never be negative. It is always positive or zero. Displacement may be positive, negative or zero.

(i) ______________ is the actual path covered by an object.
(a) Speed
(b) Motion
(c) Velocity
(d) Distance

(ii) _______________ is the shortest distance between the initial and final positions of an object.
(a) Displacement
(b) Acceleration
(c) Distance
(d) Motion

(iii) Which of the following is a scalar quantity?
(a) Displacement
(b) Distance
(c) Velocity
(d) Acceleration

(iv) Distance covered ____________
(a) can never be negative.
(b) can never be positive.
(c) can never be zero.
(d) can be positive or negative.

Answer: (a) can never be negative.

(v) Which of the following is vector quantity?
(a) Displacement
(b) Velocity
(c) Acceleration
(d) All of these

Case Study 3:

Motion is a fundamental concept in science that involves the change in position of an object with respect to its surroundings. When an object changes its position with time, it is said to be in motion. Motion can be described in terms of various parameters, such as distance, displacement, speed, and velocity. Distance is the total path covered by an object, while displacement is the change in position of an object in a particular direction. Speed is the rate at which an object covers distance, while velocity is the rate of change of displacement with respect to time. Motion can be classified into different types, such as linear motion, circular motion, and periodic motion. Understanding the principles and measurements of motion is essential in analyzing and predicting the behavior of objects in the physical world.

What is motion?
a) The change in position of an object with respect to its surroundings
b) The total path covered by an object
c) The rate at which an object covers distance
d) The change in position of an object in a particular direction
Answer: a) The change in position of an object with respect to its surroundings

How is displacement different from distance?
a) Displacement is the total path covered by an object, while distance is the change in position of an object.
b) Displacement is the change in position of an object with respect to its surroundings, while distance is the total path covered by an object.
c) Displacement is the rate at which an object covers distance, while distance is the change in position of an object in a particular direction.
d) Displacement is the change in position of an object in a particular direction, while distance is the rate of change of displacement with respect to time.
Answer: b) Displacement is the change in position of an object with respect to its surroundings, while distance is the total path covered by an object.

What is speed?
a) The change in position of an object with respect to its surroundings
b) The total path covered by an object
c) The rate at which an object covers distance
d) The change in position of an object in a particular direction
Answer: c) The rate at which an object covers distance

How is velocity different from speed?
a) Velocity is the total path covered by an object, while speed is the change in position of an object.
b) Velocity is the change in position of an object with respect to its surroundings, while speed is the total path covered by an object.
c) Velocity is the rate at which an object covers distance, while speed is the change in position of an object in a particular direction.
d) Velocity is the rate of change of displacement with respect to time, while speed is the rate at which an object covers distance.
Answer: d) Velocity is the rate of change of displacement with respect to time, while speed is the rate at which an object covers distance.

What are the different types of motion?
a) Linear motion and circular motion
b) Periodic motion and random motion
c) Circular motion and periodic motion
d) Random motion and linear motion
Answer: a) Linear motion and circular motion

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