Are you looking for Class 9 Physics Chapter 2 Notes in PDF? You are at the right place. You can download the complete exercises, numerical, short questions and MCQs of the unit 2.
Kinematics is the math that tells me what happens when I move things. For example, if I throw a ball, I can work out the velocity of the ball at any time during its flight. If I jerk my hand forward, I can calculate how far in front of me the ball will be when it lands.
Kinematics is a large part of what I do every day. My job is to make sure that wheneer we sell a product or service, we are aware of where it is and how it’s doing at all times.
This requires that we have systems to record and report information about every piece of equipment and inventory in our warehouse. When we need to know something about a piece of equipment or inventory, we need to be able to find out instantly.
This kind of information (or “data”) is increasingly important in our society but it has been slow to appear because you can’t make data without having first invented computers.
Today, thanks to computers and their great speed, data has become cheaper than ever before. It doesn’t matter where something was and what was happening with it; you can just ask them. And you can ask them every day.
Chapter: 2nd Chapter of 9th Class Physics
FileSize: 3.84 MB
FileType: PDF
Pages: 24
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Read Online Class 9 Physics Chapter 2 Notes
KIPS SHORT QUESTIONS OF KINEMATICS FOR 9TH CLASS PHYSICS
Short Questions
1: Define Kinematics.
2: Define dynamics.
3: Differentiate between Kinematics and Dynamics
4: How you will define the rest’?
5: How you will define the motion? ·
6: How we can say that rest and motion are relative states?
7: Define Rotatory motion
8: Differentiate between Circular motion and rotatory motion
9: Define Vibratory motion.
10: What do you know about scalar and vector quantities
11: How are vector quantities important in our daily life?
12: What do you know about Vector Representation?
13: What is Position?
14: What is meant by distance?
15: What do you know about Displacement’?
16: What do you know about speed?
17: How you will define the uniform speed?
18: A body is moving with uniform speed. Will its velocity be uniform?
19: What do you know about velocity?
20: What do you know about uniform velocity’?
21: Differentiate between uniform and variable velocity.
22: Does speedometer of a car measure its velocity?
23: Why a body moving along a circle with uniform speed has variable velocity?
24: What is meant by the acceleration?
2What is is meant by uniform acceleration?
26: What is meant by positive acceleration and negative acceleration?
27: A body moving with uniform velocity. What will be its acceleration?
28: Can a body mov.ing with certain velocity in the direction of east can have acceleration in the direction of west?
29: What do you know about graph’?
30: ls velocity-time graphing a straight line? If yes then what information we get from it?·
31: What do you know about gravitational acceleration’?
32: How can we use equations of motion for bodies, which are falling freely under the
33: What are the points kept in mind when bodies are moving freely under gravity?
34: When a body is thrown vertically upward, its velocity at the highest point is zero. ‘Why?
The Short Questions With Answers In the Below Images
KIPS LONG QUESTIONS OF KINEMATICS FOR 9TH CLASS PHYSICS
Long Questions
1: Define Translatory motion and its types.
2: Explain Distance-time Graph.
3: Explain Speed-Time Graph
4: Derive the equations of motion for uniformly accelerated rectilinear motion.
The Long Questions With Answers In the Below Images
KIPS TEXTBOOK EXCERCISE OF KINEMATICS FOR 9TH CLASS PHYSICS
MCQs
1. A body has translatory motion if it moves along a:
2. The motion of a body ar·o und an axis is called ___ motion
3. Which of the following is a vector quantity?
4. If an object is moving with constant speed then its distance-time graph will be a straight line.
5. A straight line parallels to time-axis on a distance-time graph so that the object is:
6. The speed-time graph of a car is shown io the figure, which of the following statement is true?
7. Which of the following graphs is representing uniform acceleration’?
8. By dividing displacement of a moving body with time, we obtain:
9. A ball is thrown vertically upward. Its velocity at the highest point is:
10. A change in position is called:
11. A train is moving at a speed of 36 kmh-1. Its speed expressed in ms1 is:
12. A car starts from rest. It acquires a speed of 25 ms·1 after 20 s. The distance moved by car:
Questions/ Answers
2.2: Explain trajectory motion and give examples of various types of translatory motion:
2.3: Differentiate between the following·:
(i) Rest and motion
(ii) Circular motion and rotatory motion
(iii) Distance and displacement
(iv) Speed and velocity
2.4: Define the terms speed, “velocity, and acceleration.
2.5: Can a body moving_at a constant speed have acceleration?
2.6: How do riders in a Ferris wheel possess translatory motion but not circular motion?
2.7: Sketch a distance-time graph for a body starting from rest. How will you determine the speed of a body from this graph?
2.8: What would be the shape of the speed-time graph of a body moving- with variable speed?
2.9: Which of the following can be obtained from the speed-time graph of a body?
2.10: How can vector quantities be represented graphically?
2.11: Why vector quantities cannot be added and subtracted like scalar quantities?
2.12: How are vector quantities important to us in our daily life?
2.13: Derive equations of motion for uniformly accelerated rectilinear motion.
2.14: Sketch a velocity-time graph for the motion of the body. From the graph
explaining each step, calculate total distance covered by the body.
The Textbook Questions With Answers In the Below Images
KIPS SOLVED NUMERICALS OF KINEMATICS FOR 9TH CLASS PHYSICS
NUMERICALS
2.1: A train moves with a uniform velocity of 36 kmh.1 for 10s. Find the distance traveled by it
2.2: A train starts from rest. It moves through 1 km in 100s with uniform acceleration.
What will be its speed at the end of 100s.
2.3: A car has a velocity of 10 ms. It accelerates at 0.2. ms’2 for half minute. Find the distance traveled during this and the find velocity of the car.
2.4: A tennis ball is hit vertically upward with a velocity of 30 ms·1. It takes 3 s to reach the highest point. Calculate the maximum height reached by the ball. How long it
will take to return to_ground?
2.5: A car moves with uniform velocity 40 ms·1 for 5 s. it comes to rest in the next 10 s with the uniform declaration. Find ·
i) declaration
ii) total distance traveled by car
2.6: A train from rest with an acceleration of 0.5 m-s 2. Find its speed in kmh·1, when it has moved through 100 m.
2.7: A train starting from re.st accelerates uniformly and attains a velocity 48 kmh-1 in 2 minutes. It travels at speed for 5 minutes. Finally, it moves with uniform retardation
and is stopped after 3 minutes. Find the total distance traveled by train
2.8: A cricket ball is hit vertically upwards and returns to ground 6 s later. Calculate
(i) Maximum height, reached by the ball. ·
(ii) The initial velocity of the ball.
2.9: When brakes are applied; the speed of a train decreases from 96 k mh’1 to 48 k mh’1 in 800 m. How much further will the train move before coming to rest? (Assuming the retardation to be constant)
2.10: In the above problem. find the time taken by the train to stop after the application of the brakes.
NUMERICAL SOLUTIONS IN THE BELOW IMAGES
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