Question # 1

Which of the following is not SI base unit.

Choose an answer

kilogram

Ampere

Coulomb

Mole

The unit formed by combining the fundamental untis of length , mass and time.

Choose an answer

Absolute units

Practical units

Bse unit

Derived units

The perpendicular distance between the line of action of forces and the axis of rotation

Choose an answer

Torque

Moment arm

Moment of force

Momentum

If the vector sum of all the torques is zero then

Choose an answer

1st condition is satisfied

2nd condition is satisfied

Centre of mass is lowered

Gravity becomes zero

Length of second pendulum is

Choose an answer

98 cm

99 cm

99.2 cm

100 cm

Which of the following is renewable source of energy.

Choose an answer

Oil

Natural gas

Uranium

Sunlight

Restoring force in the SHM is

Choose an answer

Centripetal

Frictional

Conservative

Non conservative

The SI unit of coefficient of viscosity of

Choose an answer

kg m s-1

kg m-1 s-1

kg ms -2

The equation of parabola is.

Choose an answer

y= bx - ax2

x = by - ay2

y = ax + bx2

x = a -by2

The total energy of body executing SHM is directly proportional to.

Choose an answer

Amplitude

Square of amplitude

Square root of amplitude

Reciprocal of amplitude

If two non zero vectors are perpendicular to each other than their scalar product is equal to

Choose an answer

1

-1

0

infinity

The resultant of two force 3 N and 4 N making an angle 90 ^o with each other is.

Choose an answer

1 N

3 N

5 N

10 N

A body of mass 2 kg attached to a spring is pulled to a distance of 4 cm What will be the value of spring constant K.

Choose an answer

490 N m-1

980 N m-1

1260 N m-1

1960- N m-1

92.65 is round off as

Choose an answer

92.6

93.00

92.7

None of these

If the dot product of two non zero vectors vanishes the vectors will be.

Choose an answer

any scalar quantity

Any negative number

Its magnitude but not direction

Its magnitude and direction

If a planet of mass double than that of the earth and radius three times greater than the earth a 10 kg mass on its surface will weight.

Choose an answer

2.2 N

4.4 N

6.7 N

13.2 N

The period of a geostationary satellite is.

Choose an answer

32 hours

72 hours

48 hours

96 hours

A geostationary satellite covers

Choose an answer

100 ^o of longitude

120 ^o of longitude

130 ^o longitude

140 ^o of longitude

A simple pendulum suspended from the celling of a lift has a time period T when the lift falls freely the time period of the pendulum will become

Choose an answer

Zero

T/9.8

9.8 T

Infinity

The weight of a man in an elevator moving down with an accelerating of 9.8 m s-2 will be come

Choose an answer

Half

Zero

9.8 N

Double

The minimum velocity needed to put a satellite into the orbit

Choose an answer

Terminal velocity

Escape velocity

Critical velocity

Linear velocity

More Classes

Other Links

PPSC Physics Chapter 1 MECHANICS MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer