Start learning →

CBSE Class 9 Force and Laws of Motion — practice questions — page 2

Explore 66 free Force and Laws of Motion questions in CBSE Class 9 Science. Open each question or exercise to read its content, reference answers and available explanation.

Practise Force and Laws of Motion with Quill →

Force and Laws of Motion questions and exercises with answers

Showing questions 31–60 of 66.

Force and motion — true or false?Read the answer and worked solution →Match each law of motionRead the answer and worked solution →True or false: force and motionRead the answer and worked solution →Forces that cancel each other out are called:Read the answer and worked solution →A change in the state of motion needs a force that is:Read the answer and worked solution →Which scientist studied motion using an inclined plane?Read the answer and worked solution →How many fundamental laws of motion did Newton present?Read the answer and worked solution →An object stays at rest or in uniform motion unless acted on by:Read the answer and worked solution →The tendency of objects to resist a change of motion is called:Read the answer and worked solution →The first law of motion is also known as the law of:Read the answer and worked solution →When brakes are applied, the body continues forward because of its:Read the answer and worked solution →Which property combines an object's mass and velocity?Read the answer and worked solution →Momentum is defined as mass multiplied by:Read the answer and worked solution →The direction of momentum is the same as that of:Read the answer and worked solution →The SI unit of momentum is:Read the answer and worked solution →The second law relates force to the rate of change of:Read the answer and worked solution →One unit of force gives a 1 kg mass an acceleration of:Read the answer and worked solution →The SI unit of force carries which symbol?Read the answer and worked solution →The second law gives which equation?Read the answer and worked solution →A fielder pulls his hands back while catching to reduce the:Read the answer and worked solution →When one object pushes another, the second pushes back with a force:Read the answer and worked solution →Which law of motion deals with action and reaction?Read the answer and worked solution →In a collision with no external force, what stays unchanged?Read the answer and worked solution →The rule that momentum is conserved in a collision is the law of:Read the answer and worked solution →Match each law to what it saysRead the answer and worked solution →True or false about force and motionRead the answer and worked solution →Sort each idea by the law it belongs toRead the answer and worked solution →Fill the gaps in the laws of motionRead the answer and worked solution →Order the story of a braking carRead the answer and worked solution →Balanced or unbalanced force?Read the answer and worked solution →

Worked practice questions

Force and motion — true or false?

Read exercise and reference answers
Questions
  1. Statement is true
    Yes
    Statement
    A body in motion stays in motion unless a force acts on it.
  2. Statement is true
    Yes
    Statement
    Friction opposes motion between two surfaces in contact.
  3. Statement is true
    No
    Statement
    Mass and weight are the same physical quantity.
  4. Statement is true
    Yes
    Statement
    Weight changes with location; mass does not.

Open this exercise →

Match each law of motion

Read exercise and reference answers
Matching pairs
  1. Left
    First law
    Right
    A body keeps its state unless a force acts
  2. Left
    Second law
    Right
    Force equals the rate of change of momentum
  3. Left
    Third law
    Right
    Every action has an equal opposite reaction
Instructions
Tap a law on the left, then tap what it says.
_Source: syllabus Science Force and Laws of Motion, 6.2 Balanced and Unbalanced Forces_

Open this exercise →

True or false: force and motion

Read exercise and reference answers
Questions
  1. Statement is true
    Yes
    Statement
    Inertia is the tendency of a body to resist a change in its state.
  2. Statement is true
    Yes
    Statement
    Momentum is the product of mass and velocity.
  3. Statement is true
    No
    Statement
    A body needs a force to keep moving at a steady speed.
  4. Statement is true
    Yes
    Statement
    Newton's first law describes how objects move when no net force acts.
Instructions
Decide whether each statement about motion is true or false.
_Source: syllabus Science Force and Laws of Motion, 6.2 Balanced and Unbalanced Forces_

Open this exercise →

How to practise

  1. Choose a Force and Laws of Motion question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

Put it into practice

Continue with Force and Laws of Motion practice for CBSE Class 9. Read explanations as you go. No signup form needed to start.

Practise Force and Laws of Motion →

More Science topics

Diversity in Living OrganismsThe Fundamental Unit of LifeTissues: Plant and Animal TissuesWork and EnergyMatter in Our SurroundingsMotionAtoms and MoleculesGravitation