Physics

Question 1

How do you convert from oC to K?

Answer 1

Add 273

Question 2

Convert 1MW to W

Answer 2

1x106W or 1000000W

Question 3

Convert kW to W

Answer 3

1x103W or 1000W

Question 4

Convert GW to W

Answer 4

1x109W or 1000000000W

Question 5

What are the possible units for pressure?

Answer 5

Pa and Nm-2

Question 6

What are the units for work done?

Answer 6

J

Question 7

What are the units for power

Answer 7

W

Question 8

Define work done

Answer 8

Amount of energy transferred

Question 9

Define power

Answer 9

Energy transferred per second

Question 10

1W is equivalent to …..

Answer 10

1J/s

Question 11

What is the equation that relates power and work done?

Answer 11

Power = work done / time

Question 12

Define the terms in Delta W = f x Delta s

Answer 12

Delta W = work done
f = force
Delta s = change in displacement

Question 13

Define the terms in Delta W = p x Delta V

Answer 13

Delta W = work done
p = pressure
Delta V = change in volume

Question 14

If a gas expands is work done by the gas on the surroundings or on the gas by the surroundings

Answer 14

Work done by the gas on the surroundings

Question 15

If a gas contracts is work done by the gas on the surroundings or on the gas by the surroundings

Answer 15

Work is done on the gas by the surroundings

Question 16

What is the formula relating efficiency, work output and work input?

Answer 16

efficiency = work output/work input