Notes
Concept Maps
Assignments
NCERT Solutions
Short Answer Based questions for Motion
What is unit of acceleration?
What is zero uniform velocity motion?
A body moving in a circle with constant speed. Is it acceleration?
A body goes from point A to B and then return then from B to A. what is the total displacement?
Acceleration is a vector quantity True or false?
What is the path of a velocity –time graph of a body moving with uniform acceleration
What all ways the velocity of the body can be changed?
What is average speed?
Match the column
column A 
Column B 
The Slope of the speedtime graph is called 
Average Velocity 
The arithmetic mean of initial and final velocity 
distance 
What quantity is obtained by the area under speed time graph 
acceleration 
The slope of the distance time graph 
speed 
Table type question
A car moves in a straight line from rest at t=0. It accelerates with $2m/s^{2}$ . Solve the following table
Time 
2 sec 
? 
? 
10 min 
Displacement 
? 
? 
25 m 
? 
Velocity 
? 
10 m/s 
? 
? 
Fill in the blanks
 A car starts at rest and travel a distance 20 m in 1 sec .The car average speed is ……………..
 Motion of earth around sun is an example of ………….
otion
 Tractor moving with 18 km/h is ……….. then car moving with 1500 m/min
 The motion of a free falling body is an example of ………………….. motion
 The curved speed time graph represent …………………accelerated motion
 Distance is a ………quantity while displacement is a ………………… quantity
Crossword Puzzle
Across
2. Physical quantity obtained by dividing displacement with time taken
3. A quantity having both magnitude and direction
4. This remains constant in uniform circular motion
6. It is the slope of speed time graph
8. This measure the distance travelled by the car
Down
1. This is the other name for negative acceleration
4. The speed is said to be a
5. This is the acceleration of the body with uniform velocity
7. This measure the speed of the car

Solutions
Fill in the blanks Solution
1) 20 m/s
2) Uniform circular motion
3) Lesser
4) Uniform acceleration motion
5) Not uniform
6) Scalar , vector
Crossword solution
Across
Velocity, Vector, speed, acceleration, Odometer
Down
Retardation, Scalar, Zero, Speedometer
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Class 9 Maths
Class 9 Science