Physics Past Questions and Answers

which of the following is a scalar quantity?

A Tension
B Weight
C Impulse
D Upthrust
E Distance

Question 367:

In which of the following simple machines is the effort applied between the load and the fulcrum?

A Scissors
B Pliers
C Wheel barrow
D Sugar tongs
E Nutcrackers

Question 368:

The ice and steam points on a mercury in glass thermometer are found to be 90mm apart. What temperature is recorded in degree Celsius when the length of the mercury thread is 33.6mm above the ice point mark?

A 33.6Â°C
B 35.0°C
C 37.3Â°C
D 52.7Â°C
E 62.7Â°C

Question 369:

A gas occupies a certain volume at 27°C. At what temperature will its volume be three times the original volume assuming that its pressure remains constant?

A 81Â°C
B 162°C
C 354Â°C
D 627Â°C
E 900Â°C

Question 370:

When two objects P and Q are supplied with the same quantity of heat,the temperature change in P is observed to be twice that in Q. If the masses of P and Q are the same,calculate the ratio of the specific heat capacities of P and Q

A 1:1
B 1:3
C 1:4
D 1:2
E 4:1