Physics Test 14

Total Questions: 23

1 - The maximum value of friction is called

A ) Cold welds
B ) Normal reaction
C ) Limiting friction ✅
D ) Kinetic friction

2 - The energy stored in coal is

A ) Electrical energy
B ) Chemical energy ✅
C ) Heat energy
D ) Nuclear energy

3 - The major source of heat energy is

A ) Moon
B ) Earth
C ) Nuclear fuels
D ) Sun ✅

5 - What is the unit of work?

A ) J ✅
B ) N
C ) Ns
D ) m

6 - Capability of do work is called

A ) Energy ✅
B ) Power
C ) Torque
D ) Momentum

7 - In Einstein's mass energy equation 'C' is the

A ) Speed of sound
B ) Speed of light ✅
C ) Speed of earth
D ) Speed of electron

9 - In E = mC², "C" represent the speed of

A ) Sound
B ) Light ✅
C ) Electron
D ) Earth

14 - If F= 100N, S = 10m, ∅ = 30⁰ then W=?

A ) 10Nm
B ) 100Nm
C ) 1000Nm
D ) 866m ✅

15 - Work is a ____ quantity.

A ) Scalar ✅
B ) Vector
C ) Base
D ) Both a and b

16 - IKJ =____

A ) 10²J
B ) 10³J ✅
C ) 10⁶J
D ) 10⁹J

17 - IMJ= ____

A ) 10²J
B ) 10⁶J ✅
C ) 10⁹J
D ) 10³J

19 - The ability of a body to do a work is called

A ) Power
B ) Energy ✅
C ) Work
D ) None of these

21 - Wind energy is the example Wind energy is the example of ___ energy.

A ) K.E ✅
B ) P.E
C ) Heat energy
D ) Light energy

22 - Ability of a body to do work due to motion is called ____

A ) K.E ✅
B ) P.E
C ) Heat energy
D ) Light energy

23 - If body of mass 'm' is moving with velocity 'v' its K.E is will be

A ) K.E = ½mv² ✅
B ) K.E = mgh
C ) K.E = Fs
D ) k.E Fcos∅