1 |
Time rate of change of angular displacement is called |
Linear velocity
Angular velocity
Rotational velocity
Vibrational velocity
|
2 |
|
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3 |
If the are of a circle equals its radius, then the angle subtended at the center will be |
1 degree
One rotation
One radian
Half rotation
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4 |
Angular displacement is |
Scalar quantity
Vector quantity
Basic quantity
None of these
|
5 |
When a body is moving along a circular path, then such a motion is called |
Vibratory motion
Rotatory motion
Linear motion
None of these
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6 |
Salter's duck was invented by |
Newton
Einstein
Prof Salter
Maxwell
|
7 |
The tides raise in the sea roughly |
Once a day
Twice a day
Three a day
Four time a day
|
8 |
The unit of energy is same as that of |
Power
Work
Torque
Density
|
9 |
The ability of a body to do work is called its |
Force
Power
Capacity
Energy
|
10 |
1 KWh = |
3.6 x 10<sup>3</sup>K
3.6 x 10<sup>6</sup>K
3.6 x 10<sup>9</sup>J
3.6 x 10<sup>12</sup>J
|
11 |
The SI unit of power is |
Joule
Newton
Watt
Kilowatt
|
12 |
The formula for the power is |
P= W/d
P=W/v
P=W/t
P=Wt
|
13 |
The frictional force is |
Conservative force
Non conservative force
Electric force
Magnetic force
|
14 |
The work done in gravitational field |
Depend upon the path
Does not depend upon the path
(+)ve
Zero
|
15 |
The space within which gravitational force acts on a body is called |
Electric field
Gravitational field
Magnetic field
Force field
|
16 |
When the rocket moves away from the earth, the work against gravity |
Remains constant
Varies directly with distance
Varies inversely with distance
Varies inversely with square of distance
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17 |
By increasing the amount of stretch in spring the force exerted will |
Increase
One watt
One erg
One joule
|