WorksheetsDimension and One Dimension Motion
Total questions: 10
Worksheet time: 20mins
Friction, air resistance, tension, and thrust are forces. S. I. unit of tension is:
joule
newton
watt
henry
Momentum per unit volume has dimensions
[MLT-1]
[MLT-2]
[ML-2T-1]
[M0L0T]
If the percentage error in the measurement of radius of sphere is 2%, then percentage error in the measurement of its volume is:
3%
6%
8%
9%
What does the speedometer of a vehicle read?
Average speed
Average velocity
Instantaneous speed
Instantaneous velocity
The displacement of a particle starting from rest (at t = 0) is given by S = 6t2 – t3. The time in seconds at which the particle will attain zero velocity again is:
2 s
4 s
6 s
8 s
A body travels from A to B at 40 ms-1 and from B to A at 60 ms-1. Its net displacement will be:
48 m
zero
60 m
none of these
If the distance covered by a particle is zero, what can be the displacement?
It may are may not be zero
It cannot be zero
It must be zero
It is negative.
The numerical ratio of velocity to speed is
Less than 1
Less than 0
either greater than or equal to 1
either less than or equal to 1.
The equation of motion for the freely dropped body under gravity is:
v2 = -2as
v2 = 2gs
v2 = -2gs
v2 = 2as
Acceleration of a body moving with constant speed in a circle is
zero
rw
w2/r
rw2
