Question

ou the concepts of heat
Questions for National Science Olympiad
1. If a substance is hot, its particles will
(a) move fast than the cooler object
(b) move slow than the cooler object
te move with same speed as the cooler object
The maximum and minimum temperatures of a day are measured with a :
(a) elinical thermometer
(c) maximum minimum thermometer
Temperature of boiling water cannot be measured by a
(al digital thermometer
(dlaboratory thermometer
4 One litre of water at 20°C is mixed with one litre of water at Soc The temperature of them
(b) digital thermometer
(d) laboratory thermometer
(b) clinical thermometer
(d) none of these
fal 20°C
(b) more than 50°C but less than 80°C
fel 80°C
(d) between 30°C and 50°C
5. An iron ball at 40°C is dropped in a mug containing water at 40°C. The heat will:
(a) flow from water to iron ball
(b) flow from iron ball to water
(e) neither flow from iron ball to water nor from water to iron ball
(d) increase the temperature of both
6 Colour and texture that are the best reflectors of radiant heat are:
(a) black and shiny
(b) white and shiny
(c) black and dull
(d) white and dull
7. In summer people paint their cars with silver colour in order to prevent:
(a) release of heat
(b) absorption of heat
(c) transfer of heat
(d) strength of heat
& Warm air rises because it is:
fa) more dense than cool air
(b) equally dense as cool air
(c) less dense than cool air
(d) completely dense
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(d) may move fast or slow than the cooler​

Answer 1

Answer:

1.a

2.b

3.c

5.c

6.b

7.b

8.a