Worksheet
Question 1 :- Choose the correct answer
1-The difference between the final position vector and the initial position vector
( Change in position vector )
(a)Velocity
(b) Speed
(c) displacement
2-Time derivative of the displacement (first derivative of the displacement)
(a)Instantaneous Velocity
(b) average Velocity
(c)Speed
3-The Velocity change per time interval (Ratio of change in velocity to change in
time )
(a)Constant acceleration
(b) average acceleration
(c) none of them
4-The absolute value of the velocity vector (Distance traveled per time )
(a)Distance
(b) displacement
(c) Speed
5- The absolute value of the displacement vector
(a)Distance
(b) position
(c) a and b
6- Time derivative of the Velocity (Second derivative of the displacement)
(a)Velocity
(b) Instantaneous acceleration
(c)distance
7-The ratio of the displacement per time interval (displacement per time)
(a)acceleration
(b) speed
(c) average Velocity
8-Motion under the Sole influence of gravitational acceleration
(a)Moti0n in Y axis
(b)Free Full
(c) a and b
9-The quantity that has both direction and magnitude
(a)Scalar
(b)Vector and scalar
(c) None of them
10-The quantity that has only magnitude and no direction
(a) Scalar
(b) Vector
(c)None
11-Second is the Unit of
(a)electric current
(b)Temperature
(c) Time
12-Kelvin is the Unit of
(a)Mass
13-Amper is the unit of
(b)Pressure
(a)electric power
(c)Temperature
(b)electric current
(c) Volume
14-The unit system CGS is
(a) Gaussian units
(b) used mostly in chemistry
(c) a and b
15-Scientific notation of number 356000000 =
(a)3.56×108
(b) 356×10-8
(c)356×106
16- ................ are all examples of scalar quantities .
a) pressure, Temperature and volume
b) Mass, time, speed and distance
c) a and b
17-One example of a vector is
a)Speed
b) displacement
c) time
18-Abody exerts a force of 9×10-5 Newton in dyne equals
(a)9 dyne
(b)90 dyne
(c) 900 dyne
19-Aacceleration of 50µm/µs2 is equal to
(a)500000 m/s2
20-If X(t)=2t3+t2 (m)
(a)20 m
(b)50m/s2
(c)0.5m/s2
the distance in 2 second is
(b) 16 m
(c) 10 m