2014 - JAMB Physics Past Questions and Answers - page 2
The energy in the nucleus of atoms produce heat which can be used to generate
A machine whose efficiency is 75% is used to lift a load of 1000N. Calculate the effort put in to the machine if it has a Velocity ratio of 4.
A wheel and an axle is used to raise a load whose weight is 800N when an effort of 250N is applied. If the radii of the wheel and axle are 800mm and 200mm respectively, the efficiency of the machine is
A force of 500N1 is applied to a steel wire of cross-sectional area 0.2m2, The tensile stress is
The small droplets of water that form on the grass in the early hours of the morning is
What is the equivalent of 20K in Celsius scale?
The equation PaVbTc= constant reduces to Charles Law if
The quantity of heat needed to raise the temperature of a body by 1K is the body's
The melting point of a substance is equivalent to its
The temperature at which the water vapour present in the air is just sufficient to saturate air is