First Year Physics Chapter 3 Online Short Questions Preparation for 1st Year Physics Chapter 3 (Motion and Force)

Ilmkidunya.com has come with the idea of online short questions with answers session for the student’s of 11th class to prepare the objective paper online. These short questions with answers are taken from the chapter. These short questions will help the students to understand the nature of questions asked in the board exams. Taking in a due notice of the problems of the students ilmkidunya.com’s experts have tried to resolve all the issues of the students by creating an online test session of MCQs and Short questions with answers of all subjects and to ease it the sessions are chapter wise to grab the important questions.

Chapter 3 Online Short Questions Preparation

Every physical process involves the movement of some sort. Due to its importance in the physical world around us, it is logical that we should give due attention to the study of motion. We are already aware of the fact that motion and rest are relative. Here in this chapter we shall learn other related topics in some more details.

At the end of this first-year physics online chapter 3 test session students will be able to:

  • Understand and define displacement from its definition and illustration.

  • Understand velocity, average velocity, and instantaneous velocity

  • Understand acceleration, average, acceleration, and instantaneous velocity

  • Describing the significance of the area under the velocity-time graph

  • Recall Newton’s law of motion

  • Describe Newton’s second law of motion as the rate of change of momentum

    • Exams are near and want the preparation to be accurate and according to the standards, then download the past papers and guess papers from our website. Lacking behind in lectures and understanding of topics or chapters then download the notes or take the online lectures. Exams are near and waiting for the date sheet no worries download it from the date sheet section. Exams are over and waiting for the result, and then the wait may over as you can check the result also.

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    FSC Part 1 Physics Preparation
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    Online Short Questions For Chapter 3 "FSC Part 1 Physics Chapter 3 Short Questions Preparation "

    Try The Short Questions For FSC Part 1 Physics Chapter 3 Short Questions Preparation

    • Total Questions10

    • Available Sets6

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    Physics - FSC Part 1 Physics Chapter 3 Short Questions Preparation

    Question # 1

    Define elastic and inelastic collisions.

    • Ans 1: Elastic collisions: A collision in which the K.E. Of the system is conserved is called elastic collision.
      Inelastic collisions: A collision in which the K.E.of the system is not conserved is called inelastic collision.
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    Prepare Complete Set Wise Questions For Chapter 3 "FSC Part 1 Physics Chapter 3 Short Questions Preparation "

    FSC Part 1 Physics Chapter 3 Short Questions Preparation - Set 1

    Question # 1

    Define elastic and inelastic collisions.

    • Ans 1: Elastic collisions: A collision in which the K.E. Of the system is conserved is called elastic collision.
      Inelastic collisions: A collision in which the K.E.of the system is not conserved is called inelastic collision.
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    FSC Part 1 Physics Chapter 3 Short Questions Preparation - Set 2

    Question # 1

    Define Impulse ? Show that impulse is equal to change in momentum show that J= P

    • Ans 1: Impulse: The product of forces and duration of time in which the force acts is known as impulse. pic
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    FSC Part 1 Physics Chapter 3 Short Questions Preparation - Set 3

    Question # 1

    Distinguish between elastic and inelastic collision.

    • Ans 1: In case of elastic collision the K.E of the system is conserved while in case of inelastic collision the K.E is not conserved. But the total linear momentum and the total energy of the system remains constant in both types of collision.
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    FSC Part 1 Physics Chapter 3 Short Questions Preparation - Set 4

    Question # 1

    Discuss the momentum changes produced by explosive forces ?

    • Ans 1: There are many cases where momentum changes are produced by explosive forces within an isolated system. It can be explain with the help of following Example:
      When a sheel explodes in mind-air its fragment fly apart in different direction. the various forces which occur in the explosion have zero resultant, because they cancel the effect of each other. so the total moments of the fragments is equal to the initial momentum of the sheel.
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    FSC Part 1 Physics Chapter 3 Short Questions Preparation - Set 5

    Question # 1

    At what point or points in its path does a projectile have its minimum speed,its maximum speed?

    • Ans 1: The speed of the projectile is minimum at the maximum height of projectile. It is because of the reason that; at maximum height the vertical component of velocity becomes zero.
      The speed of the projectile is maximum at the point of projection and also just before it strikes the ground because the vertical component of velocity is maximum at these points.
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    FSC Part 1 Physics Chapter 3 Short Questions Preparation - Set 6

    Question # 1

    Discuss the condition of equilibrium ?

    • Ans 1:
      Newtons 1st Law of motion: This Law states that "A body at rest will remain at rest and a body in motion will continue its motion with uniform velocity unless it is acted upon by some unbalanced external force
      If F = 0 Then a = 0
      Explanation: The Ist law of motion is also known as law of inertia. The inertia is the property of a body which opposes any change in its state of motion or rest. Actually, when some force is applied on a body for changing its state of rest or uniform motion, then the body will affer resistance against this change. In the word, We can say that all the bodies try to maintain its state of rest or continue its uniform motion due to inertia. That is the why the newtons Ist law is also known as law of inertia.
      Examples:When we give a jerk to the branch of a tree, then the fruit falls down. It is because, when we give a jerk, the branch of the tree comes into motion suddenly.
      When a bus starts motion suddenly, the passengers experience a push in the back ward direction It is because, when the bus starts motion suddenly, the lower parts of the passenger in contact with the seats also come into motion. while the upper parts of the passengers are at remain at the rest In this attempt, they falls in the back words directions
      Newton's 2nd Law of motion:
      Statements: This law states that, "when a force is applied on a body, then acceleration is produced in the body in the direction of applied force and inversely proportional to the mass of the body.
      Explanation: The Ist Law of motion gives us the quantitative measurements of force, While the 2nd law of motion gives us the quantitative measurements of forces. now if the direction of motion of the body and direction of motion of the body and direction of forces are the same, then its velocity and acceleration increases. If the direction of motion of the body and direction of force are opposite in direction of force are opposite in direction, then the velocity and acceleration of the body will decreases gradually and finally become zero and the body will come to rest
      Example of newtons 2nd law of motion:
      When a body falls on a solid floor from the top of a building, the body experience or feel great pain. It is because, when the body falls on the floor, its acceleration become zero suddenly and the body faces huge force for very short period of time
      Newton,s 3rd Law of motion:
      This Law states that for every action, there is always a reaction. These forces are equal in magnitude but opposite in direction.
      Explanation: This law tells us that no body can experience a force from its surrounding, until this body exerts any force on its surrounding It means That forces are exerted in pairs.
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    11th Class Physics Chapter 3 Preparation

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