MCQ's About "Heat On The Move".

 HEAT ON THE MOVE

Question 1

In an eight-storey block of flats, the boilers for the central heating system should be:

(A)  in the basement  (B)  on the top floor

(C)  on the fourth floor  (D)  on any floor

Question 2

Which of the following will be the best conductor of heat?

(A)  glass  (B)  iron  (C)  plastic  (D)  cork

Question 3

The Innuit or Eskimo people in Greenland can keep warm inside igloos made of blocks of ice because ice is a good:

(A)  convector  (B)  conductor  (C)  reflector of heat  (D)  insulator

Question 4

A man builds a hut with a corrugated iron roof in a country which has hot days and cold nights. The hut will be:

(A)  cool during the day  (B)  hot during the day

(C)  hot during the night  (D)  cool day and night

Question 5

A coal fire gives out heat mainly by:

(A)  conduction only  (B)  convection only  (C)  radiation only  (D)  convection and radiation

Question 6

Winds form because air:

(A)  which is cold is less dense than hot air  (B)  is always cold over the sea

(C)  allows radiation to pass through it  (D)  is a better conductor than land

Question 7

Heat lost by convection currents in a stoppered flask is prevented by:

(A)  silvering the inside surfaces of the walls  (B)  silvering the outer surfaces of the walls

(C)  making a vacuum between the walls  (D)  making the stopper of insulating material

Question 8

On a hot, sunny day it will be coolest to wear a:

(A)  loose, coloured shirt  (B)  string vest  (C)  loose black shirt  (D)  loose white shirt

Question 9

A certain kind of pie needs as hot an oven as possible. The best place to bake it would be on:

(A)  the top shelf  (B)  the bottom shelf

(C)  the middle shelf  (D)  a thick metal baking tray

Question 10

On a hot day, which colour car will become hottest inside?

(A)  shiny black  (B)  dull black  (C)  shiny white  (D)  red

Question 11

Which one of the following statements is true? Conduction:

(A)  takes place best in gases  (B)  takes place best in liquids

(C)  is fastest in a vacuum  (D)  cannot take place in a vacuum

Question 12

Which one of the following statements is true? Convection:

(A)  only takes place in liquids  (B)  is faster than radiation

(C)  is always slower than conduction  (D)  is faster in gases than in liquids

Question 13

Which one of the following statements is true? Radiation:

(A)  travels by movement of particles  (B)  can only travel in air

(C)  travels in straight lines  (D)  can only travel in a vacuum

Question 14

Modern buildings often have a double pane of glass in the windows because:

(A)  glass is a good conductor of heat  (B)  air trapped between the panes prevents convection

(C)  radiation cannot pass through trapped air  (D)  air trapped between the panes reduces conduction

--------------------------------------------------------------------------------------------------------------------------

Answers:

Question 1 (A)  Question 2 (B)  Question 3 (D)  Question 4 (B)  Question 5 (D)

Question 6 (A)  Question 7 (C)  Question 8 (D)  Question 9 (A)  Question 10 (B)

Question 11 (D)  Question 12 (D)  Question 13 (C)  Question 14 (D)