Question # 1

The energy stored in a dam is:

Choose an answer

Electric energy

Potential energy

Kinetic energy

Thermal energy

The unit of work is :

Choose an answer

J

N

Ns

m

The S.I unit of power is:

Choose an answer

Newton

Watt

Joule

Coulomb

Running water possess energy:

Choose an answer

Kinetic

Potential

Elastic Potential energy

Gravitational potential energy

An ideal system gives output:

Choose an answer

50%

60%

80%

100%

A solar cell is also called:

Choose an answer

Photo cell

Generator

Battery

None

If the direction of motion of the force is perpendicular to the direction of motion of the body then work done will be:

Choose an answer

Maximum

Minimum

Zero

None of these

The kinetic energy of a body of mass 2 kg is 25J, its speed is

Choose an answer

5 ms-1

12.5 ms-1

25 ms-1

50 ms-1

Mathematically, % efficiency is defined as & nbsp

Choose an answer

Efficiency % required form or input/ total input energy x 100

Efficiency % input energy / output energy x 100

Efficiency % work / time x 100

Einstein's mass-energy equation is

Choose an answer

E = mc

E = mc2

E = 2mc

E = m2c

Mass-Energy equation was given by:

Choose an answer

Newton

Einstein

Joule

Pascal

Work is zero when "F" and "S" will be:

Choose an answer

Parallel

Perpendicular

Anti parallel

Tangent

The large unit of work is:

Choose an answer

Kilowatt

Kilo joul

Mega joul

Both B and C

More Classes

Other Links

Physics 9th Class English Medium Unit 6 Online Test 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