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Physics Class 11 - Chapter 4
Work And Energy Test - 1
1.
Frictional force is always?
a) onservative force
b) Non-conservative force
c) Constant force
d) Gravitational force
2.
Dimension s of work are?
a) [ML
2
T
-1
]
b) [ML
2
T
-2
]
c) [ML
2
T
2
]
d) [ML
2
T]
3.
Compressed spring has?
a) Potential energy
b) Elastic energy
c) Kinetic energy
d) Elastic potential energy
4.
Work done along a closed path is always?
a) Maximum
b) Minimum
c) Variable
d) Zero
5.
The quantity which is independent of path followed by body is?
a) Force
b) Momentum
c) Work
d) Acceleration
6.
When centripetal force does not do any work then work is?
a) Infinite
b) Positive
c) Negative
d) Zero
7.
In angular motion power is the product of?
a) Torque and linear velocity
b) Torque and force
c) Torque and acceleration
d) Torque and angular velocity
8.
All kind of mental and physical activities are called?
a) Force
b) Energy
c) Work
d) All of these
9.
In particle physics work is measured in?
a) Joul
b) Watt
c) eV
d) All of these
10.
Which one is scalar quantity?
a) Displacement
b) Velocity
c) Work
d) Acceleration
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