CLASS : IX II MID TERM MARKS:17 SUBJECT:PHYSICS
I) choose the best answer: (4x1=4)
1. A particle is moving in a circular path of radius r, after completing a round of circle. The
displacement would be :-
(a) zero (b) 2r (c) r (d) πr
2.What does the slope of the velocity-time graph give?
(a)speed (b)velocity (c)acceleration (d)displacement
Directions: In each of the following questions, a statement of Assertion is given and a corresponding
statement of Reason is given just below it. Of the statements, given below, mark the correct answer
as:
(a) Both assertion and reason are true and reason is the correct explanation of assertion.
(b) Both assertion and reason are true but reason is not the correct explanation of assertion.
(c) Assertion is true but reason is false.
(d) Both Assertion and Reason are false.
3. Assertion: uniform circular motion is also known as accelerated motion.
Reason: The object that moves with uniform circular motion changes direction of motion at every
point, so the velocity is not constant.
4.The speed of the moving car is 72 km/hr . calculate in m/s.
(a)20m/s (b)15m/s (c)10m/s (d)25m/s
II Short questions: (3X2=6)
5.Define acceleration of a body. State SI unit of acceleration.
6. A scooter travelling at 10 m/s speed up to 20 m/s in 4 sec. Find the acceleration of scooter.
7. A body is accelerating at a constant rate of 10m/s 2. If the body starts from rest, how much
distance will it cover in 2 seconds?
III Answer the following: (1X3=3)
8. A train starting from rest attains a velocity of 72 km h–1 in 5 minutes. Assuming that the
acceleration is uniform, find (i) the acceleration and (ii) the distance travelled by the train for
attaining this velocity
IV Answer the following (1X4=4)
I) choose the best answer: (4x1=4)
1. A particle is moving in a circular path of radius r, after completing a round of circle. The
displacement would be :-
(a) zero (b) 2r (c) r (d) πr
2.What does the slope of the velocity-time graph give?
(a)speed (b)velocity (c)acceleration (d)displacement
Directions: In each of the following questions, a statement of Assertion is given and a corresponding
statement of Reason is given just below it. Of the statements, given below, mark the correct answer
as:
(a) Both assertion and reason are true and reason is the correct explanation of assertion.
(b) Both assertion and reason are true but reason is not the correct explanation of assertion.
(c) Assertion is true but reason is false.
(d) Both Assertion and Reason are false.
3. Assertion: uniform circular motion is also known as accelerated motion.
Reason: The object that moves with uniform circular motion changes direction of motion at every
point, so the velocity is not constant.
4.The speed of the moving car is 72 km/hr . calculate in m/s.
(a)20m/s (b)15m/s (c)10m/s (d)25m/s
II Short questions: (3X2=6)
5.Define acceleration of a body. State SI unit of acceleration.
6. A scooter travelling at 10 m/s speed up to 20 m/s in 4 sec. Find the acceleration of scooter.
7. A body is accelerating at a constant rate of 10m/s 2. If the body starts from rest, how much
distance will it cover in 2 seconds?
III Answer the following: (1X3=3)
8. A train starting from rest attains a velocity of 72 km h–1 in 5 minutes. Assuming that the
acceleration is uniform, find (i) the acceleration and (ii) the distance travelled by the train for
attaining this velocity
IV Answer the following (1X4=4)
