Question

Black objects are:
a. Good absorbers and bad emitters of heat
(b) bad absorbers and good emitters of heat
c. Good absorbers an good emitters of heat
(d) bad absorbers and bad emitters of heat
2. An iron ball at 40°C is dropped into a mug of water at 40°C. The heat will
(a) flow from iron to water
(b) not flow in either direction
(c) flow from water to iron
(d) temperature of both iron and water will increase
3. Which of the following is the coldest temperature possible?
(a) OK
(d) o°c
(c)0°f
(d)-273°f
4 Which of these is not inflammable?
(a) LPG
(b) wood
(c) water
(d) paper

5. Melting is the reverse process of:
(a) fusion
(b) freezing
(c) boiling
(d) evaporation

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Answer 1

Answer:

2. c option

3. b option

4. c option

5 à option and please follow me

Answer 2

(2) b) not flow in either direction

(3) b) o•c

(4)water

(5) freezing