CBSE Class 9 Force and Laws of Motion — practice questions — page 3

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.

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Force and Laws of Motion questions and exercises with answers

Showing questions 61–66 of 66.

Spot the one that does not fitRead the answer and worked solution →Pick the right answer, quicklyRead the answer and worked solution →Match each of Newton's Laws of Motion with its core statement:Read the answer and worked solution →Match each type of inertia with its daily life illustration:Read the answer and worked solution →Match each dynamic concept with its definition:Read the answer and worked solution →Match each practical sport/safety mechanism with its physics principle:Read the answer and worked solution →

Worked practice questions

Spot the one that does not fit

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Questions

Items
1. Joule
2. Newton
3. Force unit
4. kg m per s2
Odd item
Joule
Items
1. Inertia
2. First law
3. Rest state
4. Action pair
Odd item
Action pair
Items
1. Mass
2. Velocity
3. Momentum
4. Colour
Odd item
Colour
Items
1. Galileo
2. Newton
3. Inclined plane
4. Chadwick
Odd item
Chadwick

Instructions

Tap the item that does not belong with the rest.

_Source: syllabus Science, Ch 9 'Force and Laws of Motion'_

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Pick the right answer, quickly

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Questions

Question
Newton gave how many laws of motion?
Choices
1. Two
2. Three
3. Four
Correct choice
Three
Question
Momentum equals:
Choices
1. mv
2. ma
3. mg
Correct choice
mv
Question
The second law gives:
Choices
1. F equals mv
2. F equals ma
3. F equals mg
Correct choice
F equals ma
Question
Action and reaction are:
Choices
1. Equal, opposite
2. Equal, same way
3. Unequal, opposite
Correct choice
Equal, opposite
Question
The first law is also the law of:
Choices
1. Inertia
2. Impulse
3. Gravity
Correct choice
Inertia

Instructions

Tap the correct answer before the round moves on.

_Source: syllabus Science, Ch 9 'Force and Laws of Motion'_

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Match each of Newton's Laws of Motion with its core statement:

1-A, 2-B, 3-C
1-B, 2-A, 3-C
1-C, 2-B, 3-A
1-A, 2-C, 3-B

Show answer and solution

Correct answer: A. 1-A, 2-B, 3-C

First law defines inertia. Second law defines F = dp/dt = ma. Third law states action = -reaction.

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