2009 - JAMB Physics Past Questions and Answers - page 4
An object of mass 80 kg is pulled on a horizontal rough ground by a force of 500 N. Find the coefficient of static friction.
[g = 10 ms-2]
If a heavy barrel is rolled up a plane inclined at 30° to the horizontal. its velocity ratio will be
I. Density of the liquid.
II. Acceleration due to gravity.
III. Type of container of the liquid.
IV. The constituents of the liquid.
which of the above conditions will NOT affect the pressure of fluid?
If a load of mass 10N stretched a cord by 1.2cm, what is the total work done?
A plastic sphere floats in water with 50% of its volume submerged. if it floats in glycerine with 40% of its volume submerged,the density of the glycerine is?
The thermometer whose reading is indicated by a change in colour of its thermometric property is the?
At 4°c, the volume of a fixed mass of water is?
An electric heater rated 220v, 1000 w is immersed into a bucket full of water, calculate the mass of water if the temperature changes from 30°c to 100°c and the current flows for 300seconds.
[specific heat capacity of water = 4200 jkg-1 K-1]
If the pressure of the vapour on top of an enclosed liquid is equal to the atmospheric pressure, what will be the temperature of the liquid enclosed?
A heating coil rated 1000 W is used to boil off completely 2 kg of boiling water. the time required to boil of the water is_______
[Special latent heat of Vaporization of water = 2.3 x 106 Jkg-1]