Physics Past Questions and Answers

A block-and-tackle system is used to lift a load of 20N through a vertical height of 10m. if the efficiency of the system is 40%, how much work is done against friction?

Which of the following devices are used to measure pressure? i. Aneroid barometer. ii. hydrometer. iii. hygrometer. iv. manometer.

A piece of wood of mass 40g and uniform cross-sectional area of 2cm<sup style='font-size: smaller;'>2</sup> floats upright in water. The length of the wood immersed is

The pressure on the gas of constant gas thermometer at the ice point is 325mm of mercury and at the steam point is 875mm of mercury. Find the temperature when the pressure of the gas is 190mm of mercury

A column of air 10.0cm long is trapped in a tube at 27<sup style='font-size: smaller;'>o</sup>C. What is the length of the volume at 100<sup style='font-size: smaller;'>o</sup>C?