NECO Physics Past Questions & Answers - Page 25

When the same amount of current, I is passed through different wires under the same conditions, the rates of production of heat are

A car travels with a constant velocity of 45 kmh^-1 for 20s. What distance does it cover in this time?

Heat

I. is a form of energy
II. is measured with a thermometer
III. cannot be created or destroyed
IV. from a hot object is transferred through conduction only. Which of the statements above are correct?

In which of the following are crystalline structures observable?

I. Gas
II. Liquid
III. Solid

The rate of diffusion of gases increases with increase(s) in

I. density
II. temperature
III, mass. Which is/are correct?