Chapter-
MOTION
PHYSICS
HOLIDAY HOMEWORK WORKSHEET
Multiple Choice Questions
1. A particle is moving in a circular path of radius r. The
displacement after
half a circle would be:
(a) Zero
(b) π r
(c) 2 r
(d) 2π r
2. The numerical ratio of displacement to distance for a
moving object is
(a) always less than 1
(b) always equal to 1
(c) always more than 1
(d) equal or less than 1
3. Which of the following figures (Fig. 8.3) represents
uniform motion of a
moving object correctly?
4. In which of the following cases of motions, the distance
moved and the
magnitude of displacement are equal?
(a) If the car is moving on straight road
(b) If the car is moving in circular path
(c) The pendulum is moving to and fro
(d) The earth is revolving around the Sun
A)m/s
B) ms
C)m/s2
D) none
of these
A) zero
B) 24 m/s
C) 25 m/s
D) none of these
A) Speed
B) acceleration
C) Retardation
D) velocity
A) m/s
B) km/s
C) cm/s
D) none of these
A) m/s
B)m/s2
C) N s
D) N / s
10. A cylist moves from a certain point X and goes
round a circle radius, r and reaches Y, exactly at the other side of the point
X, as shown in the given figure. (i) The displacement
of the cylist would be
A) πr
B) 2πr
C) 2r
D) 2π/r
Solve the following
1. An object cover a distance of 8 km in 2
minutes. Calculate the speed in:
(a) m/s
(b) Km/h.
2. Object A travelled a distance of 80 km in 4
hours and Object B travelled a distance of 100 km in 10 hours. Which object
traveled faster?
3. Arrange the following speeds in increasing
order-
(a) Car moving with speed of 72
km/h
(b) A kite moving with
speed of 10 m/s
(c) A train moving with
speed of 1200 m/min
4. What is the displacement travelled by a car if
it takes 30 minutes for a journey with velocity 20 m/s.
5. If a man walks at a speed of 2 km/h and walk a
distance of 200 meters. How much time he will take to complete his walk?
6. A bus decreases its velocity from 80 km/h
to 60 km/h in 5 s. find the acceleration of the body.
7. A train starting from a railway station and
moving with uniform acceleration attains a speed 40 km/h in 10 minutes. Find
its acceleration.
8. A motor boat starting from rest on a lake
accelerates in straight line at a constant rate of 3.00 m/s2 for
8.0 s. how far does the boat travel during this time?
9. A ball is gently dropped from a height of 20
m. if its velocity increases uniformly at a constant rate of 10 m/s2, .With
what velocity will it strike the ground? After what time will it strike the
ground?
10. A bus starting from rest moves with a uniform
acceleration of 0.1 m/s2 for 2 minutes. Find
(a) The speed acquired.
(b) The distance traveled.
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