Module 2 Physics Part II

1.

1 point

When a system undergoes a complete cycle where the net heat supplied is equal to work done plus a change in internal energy - this is known as,

Ideal Gas law

First law of thermodynamics

2nd Law of thermodynamics

2.

1 point

What is the reason the routher skin,

the lower friction

none

the higher friction

3.

1 point

Which one of the following is not true?

Fs>Fk

Coefficient number is 0 to +∞

Fk>Fs

4.

1 point

Find the acceleration of a 100kg body which is affected by 1kN force

10m/s

100m/s

1000m/s

5.

1 point

The SI unit of density is the.

Pascal (Pa)

kilogram per cubic metre (kg/m3)

cubic metre (m3)

6.

1 point

(F-32)/1,8 formula is given

Celsius

Formula is not true

Kelvin

7.

1 point

Which has the most effect on the speed of sound in air?

Frequency

Wavelength

Temperature

8.

1 point

The number of radians in a semi circle are.

π

2π

exactly 3

9.

1 point

The force which acceleration 9m/s^2 of a body which mass is 14kg?

56N

23N

126N

10.

1 point

A stone has been falling freely for 4sec. from rest at what speed is it falling in ft/sec? (a=40ft/sec^2)

160ft./sec

10ft./sec

128ft./sec

11.

1 point

Used to measure the relative density of liquids

Manometre

Hydrometre

Anemometre

12.

1 point

158F to C?

70C

316,4C

431C

13.

1 point

P1V1/T1 = P2V2/T2 formula is related by,

gas law

speed

electricity

14.

1 point

C+273 formula is given

Centigrade

Kelvin

Fahrenheit

15.

1 point

Temperature is a measure of.

the heat energy of particles

the amount of vibration of molecules.

the amount of friction produced by two mating surfaces

16.

1 point

The SI unit of pressure is the.

kilogram per metre cubed (kg/m3)

Cubic metre (m3)

Newton per metre squared (N/m2)

17.

1 point

The heat required to change a gas to liquid is called the heat of

condensation

fusion

vapourisation

18.

1 point

Specific gravity.

is measured in kg/m2

is measured in kg/m3

has no units

19.

1 point

What is 100 Degrees Centigrade in Fahrenheit?

30 Degrees

148 Degrees

212 Degrees

20.

1 point

What is the momentum of a ball of mass 2 grams and has a velocity of 10cm/s?

5 kg.m/s

20 kg.m/s

0.0002 kg.m/s.

21.

1 point

P1 * V1 = P2 * V2 at a constant temperature is (P=Pressure, V=Volume, T=Temperature)

Boyle's law

ideal gas law

Charles' law

22.

1 point

The Steam Point of water is.

0 Kelvin

373 Kelvin

273

23.

1 point

A motorcycle of mass 400kg is moving at a velocity of 8m/s. Calculate its momentum.

3200 kgm/s

50 kgm/s

320 kgm/s

24.

1 point

A cycle goes to 60m/s in a minute what is the acceleration of it

360m/s2

1m/s2

120m/s2

25.

1 point

A stone has been falling freely for 10sec from rest how deep is it falling in feet (a=40ft/sec)

2000ft

400ft

200ft

26.

1 point

The SI unit of momentum is the.

kilogram metre per second

metre squared (m2)

kilogram / metre (kg/m)

27.

1 point

Viscosity can be described as

the internal resistance for a fluid to flow

fluids flowing in a straight line

Newton's 1st law of motion

28.

1 point

What is meant by adiabatic?

All heat crosses the boundary

No heat crosses the boundary

Some heat crosses the boundary

29.

1 point

A material capable of going direct from solid to gas is a.

substrate

substance

sublimate

30.

1 point

which one of the statement is true put in order ?

failure-plastic-elastic

elastic-plastic-failure

plastic-elastic-failure

31.

1 point

C*1,8+32 formula is given

Fahrenheit

Kelvin

Formula is not true

32.

1 point

Atmospheric pressure at ISA conditions is

1013 pa

1013 bar

1013 mBar