NCERT Solutions for class 9 Science Chapter 8: Motion

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The NCERT Solutions for Class 9 Science Chapter 8 Motion are provided in this article below. Some of the important concepts of Class 9 Science Chapter 8 Motion are:

Download: NCERT Solutions for Class 9 Science Chapter 8 pdf

NCERT Solutions for Class 9 Science Chapter 8

Important Topics for Class 9 Science Chapter 8 Motion

Motion of an object is perceived when its position changes continuously with respect to some stationary object. Terms such as distance,displacment, speed, velocity and acceleration are all related to the concept of motion. In physics, Motion is classified into two broad categories such as Uniform and Non-uniform motion.

Vector and Scalar Quantities

Vector can be defined as a quantity that includes both magnitude and direction. A scalar quantity, in the meantime, does not have any relevant direction but includes magnitude.

Example of Vector Quantity: Force and displacement are examples of Vector Quantities.
Example of Scalar Quantity: Mass, temperature, and time are all examples of Scalar Quantities.

Displacement

Displacement refers to shortest distance between an the initial and final position of an object. Displacement is known to carry a direction and vector quantity.

Displacement can be expressed by Δx. Hence, the Formula of Displacement is:
Δx = x_f − x₀

Here,
x_f = Final position of the object
x₀ = Starting position of the object

Velocity

Velocity is expressed as an object’s speed in a specific direction. Velocity is a vector quantity. Its SI unit is respresented as Metre (m).

The formula of Velocity is: Velocity = Displacement/Time

Also Read:

Unit Related Links
Speed-Time Graphs	Speed, Distance and Time Formula	Average Speed Formula
Uniform Motion	Uniform Circular Motion	Constant Acceleration
Equations of Motion by Graphical Method	Differences between Acceleration and Velocity	Motion Important Questions
Motion in a Straight Line	Angular Speed

Also Check:

Important Science Study Guides
Named Reactions	Difference between in chemistry	Difference between in biology
Physics Constants	Difference between in physics	Periodic Table

CBSE X Related Questions

1.
Show how you would connect three resistors, each of resistance 6 Ω, so that the combination has a resistance of
9 Ω
4 Ω

View Solution

2.
Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is 3 × 10⁸ m s⁻¹.

View Solution

3.
Why does the sky appear dark instead of blue to an astronaut?

View Solution

4.
A milkman adds a very small amount of baking soda to fresh milk.
(a) Why does he shift the pH of the fresh milk from 6 to slightly alkaline?
(b) Why does this milk take a long time to set as curd?

View Solution

5.
Which of the statements about the reaction below are incorrect?
\(\text{ 2PbO(s) + C(s) → 2Pb(s) + C}O_2\text{(g)}\)
(a) Lead is getting reduced.
(b) Carbon dioxide is getting oxidized.
(c) Carbon is getting oxidized.
(d) Lead oxide is getting reduced.

(a) and (b)
(a) and (c)
(a), (b) and (c)
all

View Solution

6.
Balance the following chemical equations.
(a) HNO₃ +Ca(OH)₂ \(→\) Ca(NO₃)₂ + H₂O
(b) NaOH + H₂SO₄ \(→\) Na₂SO₄ + H₂O
(c) NaCl + AgNO₃ \(→\) AgCl + NaNO₃
(d) BaCl + H₂ SO₄ \(→\) BaSO₄ + HCl

View Solution

View All

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You can also check

NCERT Solutions for class 9 Science Chapter 8: Motion

Download: NCERT Solutions for Class 9 Science Chapter 8 pdf

NCERT Solutions for Class 9 Science Chapter 8

Important Topics for Class 9 Science Chapter 8 Motion

Vector and Scalar Quantities

Displacement

Velocity

CBSE X Related Questions

1.
Show how you would connect three resistors, each of resistance 6 Ω, so that the combination has a resistance of
9 Ω
4 Ω

2.
Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is 3 × 10⁸ m s⁻¹.

3.
Why does the sky appear dark instead of blue to an astronaut?

4.
A milkman adds a very small amount of baking soda to fresh milk.
(a) Why does he shift the pH of the fresh milk from 6 to slightly alkaline?
(b) Why does this milk take a long time to set as curd?

5.
Which of the statements about the reaction below are incorrect?
\(\text{ 2PbO(s) + C(s) → 2Pb(s) + C}O_2\text{(g)}\)
(a) Lead is getting reduced.
(b) Carbon dioxide is getting oxidized.
(c) Carbon is getting oxidized.
(d) Lead oxide is getting reduced.

6.
Balance the following chemical equations.
(a) HNO₃ +Ca(OH)₂ \(→\) Ca(NO₃)₂ + H₂O
(b) NaOH + H₂SO₄ \(→\) Na₂SO₄ + H₂O
(c) NaCl + AgNO₃ \(→\) AgCl + NaNO₃
(d) BaCl + H₂ SO₄ \(→\) BaSO₄ + HCl

Similar Science Concepts

Comments

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NCERT Solutions for class 9 Science Chapter 8: Motion

Download: NCERT Solutions for Class 9 Science Chapter 8 pdf

NCERT Solutions for Class 9 Science Chapter 8

Important Topics for Class 9 Science Chapter 8 Motion

Vector and Scalar Quantities

Displacement

Velocity

CBSE X Related Questions

1. Show how you would connect three resistors, each of resistance 6 Ω, so that the combination has a resistance of 9 Ω4 Ω

2. Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is 3 × 108 m s−1.

3. Why does the sky appear dark instead of blue to an astronaut?

4. A milkman adds a very small amount of baking soda to fresh milk. (a) Why does he shift the pH of the fresh milk from 6 to slightly alkaline? (b) Why does this milk take a long time to set as curd?

5. Which of the statements about the reaction below are incorrect?\(\text{ 2PbO(s) + C(s) → 2Pb(s) + C}O_2\text{(g)}\)(a) Lead is getting reduced. (b) Carbon dioxide is getting oxidized. (c) Carbon is getting oxidized. (d) Lead oxide is getting reduced.

6. Balance the following chemical equations.(a) HNO3 +Ca(OH)2 \(→\) Ca(NO3)2 + H2O (b) NaOH + H2SO4 \(→\) Na2SO4 + H2O (c) NaCl + AgNO3 \(→\) AgCl + NaNO3 (d) BaCl + H2 SO4 \(→\) BaSO4 + HCl

Similar Science Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Show how you would connect three resistors, each of resistance 6 Ω, so that the combination has a resistance of
9 Ω
4 Ω

2.
Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is 3 × 10⁸ m s⁻¹.

3.
Why does the sky appear dark instead of blue to an astronaut?

4.
A milkman adds a very small amount of baking soda to fresh milk.
(a) Why does he shift the pH of the fresh milk from 6 to slightly alkaline?
(b) Why does this milk take a long time to set as curd?

5.
Which of the statements about the reaction below are incorrect?
\(\text{ 2PbO(s) + C(s) → 2Pb(s) + C}O_2\text{(g)}\)
(a) Lead is getting reduced.
(b) Carbon dioxide is getting oxidized.
(c) Carbon is getting oxidized.
(d) Lead oxide is getting reduced.

6.
Balance the following chemical equations.
(a) HNO₃ +Ca(OH)₂ \(→\) Ca(NO₃)₂ + H₂O
(b) NaOH + H₂SO₄ \(→\) Na₂SO₄ + H₂O
(c) NaCl + AgNO₃ \(→\) AgCl + NaNO₃
(d) BaCl + H₂ SO₄ \(→\) BaSO₄ + HCl