Q.1 The example of lever of first order is __.
A. Pair of clinical tongs
B. Pair of scissors
C. Arm of man
D. All of the above
Ans-: D
Q.2 In actual machines the mechanical advantage is _______ velocity ratio.
A. More than
B. Less than
C. Equal to velocity ratio
D. Zero
Ans-: B
Q.3 Tension in a string is maximum at ____.
A. Mid way
B. Right support
C. Left support
D. Quarter span
Ans-: A
Q.4 In ideal machine the mechanical advantage is _______ velocity ratio .
A. More than
B. Zero
C. Equal to
D. Less than
Ans-: C
Q.5 A pair of Smith's tongs is an example of the lever of _______.
A. Second order
B. First order
C. Fourth order
D. Third order
Ans-: A
Q.6 The product of mass and velocity is known as _______.
A. Work
B. Impulse
C. Momentum
D. Power
Ans-: C
Q.7 The sum of kinetic and potential energies will be maximum at ______ , when a ball is thrown up.
A. Highest point
B. Ground
C. In the centre while going up
D. At all the points
Ans-: D
Q.8 The capacity of doing work is known as ___.
A. Power
B. Energy
C. Momentum
D. Work
Ans-: B
Q.9 One Newton is equal to _____.
A. 10 ^7 dyne
B. 10 ^5 dyne
C. 10 ^3 dyne
D. 10 ^4 dyne
Ans-: A
Q.10 The rate of doing work is known as ___.
A. Energy
B. Force
C. Power
D. Acceleration
Ans-: C
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