Physics Past Questions and Answers

a force of 16N applied 4.0kg block that is at rest on a smooth, horizontal surface. What is the velocity of the block at t = 5 seconds?

1,000 identical drops of oil of density 500kgm<sup style='font-size: smaller;'>-3</sup> have a total mass of 5 x 10<sup style='font-size: smaller;'>-4</sup>kg. One of the drops forms a thin film of area 0.5m<sup style='font-size: smaller;'>2</sup> on water. The thickness of the film is

The total length of a spring when a mass of 20g is hung from its end is 14cm, while its total length is 16cm when a mass of 30g is hung from the same end. Calculate the unstretched length of the spring assuming Hooke's law is obeyed.

Which of the following statements is CORRECT? i. the mass number is equal to the total number of protons and electrons in an atom. ii. the atomic number is equal to the number of protons in an atom. iii. the number of electrons in an atom is equal to the total number of protons and neutrons in the nucleus.

A short response to time is obtained in liquid-in-glass thermometer when the