# Heating and cooling quiz

#### Quiz Description

A level Heating and cooling quizzes are involved with Heating, Ventilation, and Air conditioning. These systems are often designed by engineers to maintain the comfort and safety of building occupants. Heating and air conditioning components assist us by controlling indoor climate and proper airflow, which ensures that we neither freeze nor sweat. You will learn a lot of fascinating stuff in this quiz about these two processes like temperature, ventilation, HVAC systems, and air conditioning. But our main focus will be on temperature especially.

Heating is simply defined as the process by which temperature increases. This occurs when there is an increase in kinetic energy of the particles of an object, or when the temperature changes from a lower temperature value to a higher temperature value. For example, cold water on fire gets warm to a higher temperature because it is being warmed(heating).

Cooling on the other hand is the opposite of heating, while temperature changes from low to high on heating, temperature drops from high to low when cooling is occurring. For example, water freezing to a temperature of below 4 degrees becomes ice.

To finish, A level Cooling and heating is very important for it opens students eyes to see the power of ventilation and air conditioning which deals with the comfortability of the human body when in a closed place, like a room. We should therefore take this topic in Physics seriously; most exams usually involve such topics. More quizzes are available on our official website, be sure to take the quiz and learn more.

The melting points and boiling points of substances A-D. Which is a solid at 20oC? [Substance] Melting Point oC and Boiling Point oC

Correct
•   -142 and -78
•  90 and 189
•  -66 and 42
•   -95 and 4

Which temperature matches an ice and salt mixture?

Correct
•  -5 oC
• 100 oC
•  0 oC
• 102 oC

In winter freezing conditions can produce cracked milk bottles! In what way does water show UNUSUAL behaviour?

Correct
•  the ice expands on cooling
•  liquid water contracts on freezing to form ice
•   liquid water is less dense than ice
•  ice has a smaller density than liquid water

Which temperature could be that of a bread oven?

Correct
•  28 oC
•  1 oC
•  37 oC
•  150 oC

In winter, freezing conditions can produce cracked milk bottles! In what way does water show UNUSUAL behaviour?

Correct
•   ice has a greater volume than liquid water
•  liquid water contracts on freezing to form ice
•  liquid water is less dense than ice
•  the ice expands on cooling

Problems can arise with railway steel track from changes in temperature. Small gaps are left between each rail section to allow for changes in length. Which of the following is TRUE about the steel rails and change in temperature?

Correct
•  on average the gap will be greater in the winter than the summer
•  if no gap is made the rail can get thinner or thicker without becoming dangerously distorted
•  on average the rail track will contract more in the summer than the winter
• expansion happens when the steel atoms lose vibration energy

Starting with the solid, the graph shows the results of measuring the temperature of substance X as it was heated from a low to a high temperature. Which of the following is TRUE?

Correct
•  X is boiling between times t3 and t4
• X is melting between times t2 and t3
•   temperature TE1 is the boiling point of X
•   X is all liquid between times t1 and t2

The melting points and boiling points of substances A-D. Which substance is suitable to use in a thermometer that measures in the range 0 oC to 100 oC? [Substance] Melting point oC(mpt), Boiling Point oC(bpt)

Correct
•  mpt = -110o, bpt = 80 oC
•  mpt = -200o, bpt = 40 oC
•  mpt = 1o, bpt = 99 oC
•  mpt = -40o, bpt = 350 oC

When water vapour in a cloud is gradually cooled, rainwater is formed. This change of state is called?

Correct
• saturation
• distillation
• evaporation
• condensation

Which of the following phrases about heat transfer properties best matches the use of steel for the base of a fryingpan?

Correct
• good absorber of heat radiation
•  poor reflector of heat radiation
•  poor conductor of heat
•  good conductor of heat

Which temperatures matches the boiling point of sea water?

Correct
•  0 oC
•   -5 oC
•  102 oC
•  100 oC

Which is represented by the particle picture above?

Correct
• liquid
•  partly melted solid
• gas
• solid

The melting points and boiling points of substances A-D. Which is a solid at 100 oC? [Substance] Melting point oC(mpt), Boiling Point oC(bpt)

Correct
•   mpt = 19, bpt = 27 oC
•  mpt = -127, bpt = -33 oC
•  mpt = 99, bpt = 354 oC
•  mpt = 101, bpt = 116 oC

Which of the following terms applies to what happens to dripping candle wax?

Correct
• freezing
• condensation
• melting
• evaporation

Which of the following types of heat transfer matches using iron for a boiler?

Correct
• radiation
• convection
• conduction
• evaporation

The melting points and boiling points of substances A-D. Which substance is suitable to use in a thermometer that measures in the range -4 oC to 50 oC? [Substance] Melting point oC(mpt), Boiling Point oC(bpt)

Correct
•  mpt = 0o, bpt = 100 oC
•   mpt = -200o, bpt = 40 oC
•  mpt = 40o, bpt = 350 oC
• mpt = -110o, bpt = 80 oC

Which is the opposite of melting?

Correct
• condensing
• boiling
• freezing
• evaporating