PHYSICS CLASS 9TH PAPER CHAPTER 1 PAST AND SAMPLE PAPER.
MCQs: 25 MARKS. PAPERS PHYSICS CLASS 9TH ENGLISH MEDIUM
MULTIPLE CHOICE QUESTIONS
1. An axis is a line around which a body:
a) Vibrates b) spins c) rotates d) both a and b
Correct Answer rotates
2. The motion of pendulum of a clock is:
a) Random motion b) circular motion c) rotatory motion d) vibratory motion
Correct Answer vibratory motion
3. If a body is thrown vertically upward then its gravitational acceleration will be
a) Uniform b) zero c) positive d) negative
Correct Answer negative
4. If the speed or direction of the moving body does not change with the time, then its velocity is said to be
a) Uniform b) variable c) constant d) zero
Correct Answer uniform
5. The uniform velocity attained by a paratrooper is called:
a) Escape velocity b) terminal velocity c) variable velocity d) zero velocity
Correct Answer terminal velocity
6. If the velocity of the body is increasing then its acceleration will be:
a) Uniform b) variable c) positive d) negative
Correct Answer positive
7. If the speed or direction of a moving body changes with time, then its velocity is said to be:
a) Uniform b) variable c) constant d) zero
Correct Answer variable
8. Mechanics can be dividing into branches
a) 2 b) 3 c) 4 d) 5, Correct Answer 2
9. The quantities which cannot be changed with our wish are known:
a) Independent variables b) dependent variables c) constant variables d) None of these, Correct Answer independent variables
10. The state of Rest and motion of a body is:
a) Constant b) Relative c) Variable d) Absolute
Correct Answer Relative
11. Movement of a player in a football ground is:
a) Random motion b) circular motion c) rotatory motion d) vibratory motion
Correct Answer random motion
12. The motion of a body about an axis is called:
a) random motion b) vibratory motion c)rotatory motion d)Circular motion
Correct Answer rotatory motion
13. Total length between two points is known as:
a) Speed b) distance c) displacement acceleration d) acceleration
Correct Answer distance
14. The velocity of a body at a certain instant of time is called
a) Average b) uniform c) constant d) instantaneous
Correct Answer instantaneous
15. a ball moves vertically downward possess:
a) Linear motion b) random motion c) rotatory motion d) circular motion
Correct Answer linear motion
16. The spinning motion of a body about its axis is:
a) Random Motion b) Circular motion c) Rotatory Motion d) Vibratory Motion
Correct Answer Rotatory Motion
17. In rotator motion, the line around which a body moves about is:
a) Passing through the body itself b) inside the body c) outside the body d) both b and c
Correct Answer both b and c
18. If a body moves along a line without any rotation, then it is:
a) Circular Motion b) Random Motion c) Translatory Motion d) Linear Motion
Correct Answer Translatory Motion
19. The Brownian motion of gas or liquid molecules along a zigzag path is:
a) Linear motion b) Random motion c) Rotatory motion d) Vibratory motion
Correct Answer Random motion
20. When the bodies are in motion then the velocity of one body relative to the other is known as
Correct Answer
Relative velocity
21. Which one of the following is a vector quantity?
a) Speed b) mass c) displacement d) distance
Correct Answer displacement
22. Which one of the following is not a scalar quantity?
a) Mass b) weight c) work d) power
Correct Answer weight
23. The motion of a steering wheel is:
a) Random motion b) circular motion c) rotatory motion d) vibratory motion
Correct Answer rotatory motion
24. The motion of children sitting on a see-saw is:
a) Random motion b) circular motion c) rotatory motion d) vibratory motion
Correct Answer vibratory motion
25. The quantities between which a graph is plotted are called
a) Constant b) variables c) ratios d) proportions
Correct Answer variables
I) WRITE DETAILED /LONG ANSWER TO THESE QUESTIONS:16 MARKS
1. How can you analysis of motion by graphically?
2. Describe the 2nd equation of motion graphically.
3. Define motion. Explain various types of motion with examples.
4. Describe the 3rd equation of motion graphically.
II) WRITE SHORT ANSWERS TO THESE QUESTIONS:40 MARKS
1. What is the distance?2. How will you define uniform speed?
3. Define vibratory motion with an example? a)
4. What do you know about speed write its formula and unit? a)
5. Define circular motion and give an example.
6. Define random motion and give an example.
7. Would the description of a force be complete if the direction is not given?
8. Write a short note of vectors?
9. HOW VELOCITY OF CAR IS MEASURED THROUGH SPEEDOMETER? a)
10. Difference between distance and displacement? a)
11. What is meant by kinematics?
12. What is Brownian motion?
13.Short note on uniform velocity?
14. What is the displacement?
15.Define scalers quantities with examples?
16. How can you calculate the distance covered if the average speed of the body is known?
17. What changes will occur in the three equations of motion under the action of gravity? a)
18. Define motion also gives an example.
19. Would it be meaningless to describe vector without direction?
20. A car travelling 10 acceleration uniformly at 2 Calculate its velocity after 5s. a)
Tags:
PAPERS