1.2 Types of Types of Heat transfer🌡

Question 1

▪ it is the direct transfer of heat from
one substance to another that is contacting 🍳
▪ based on the principle that adding
heat to molecules increases their energy, hence their ability to transfer heat to neighboring 💢♨️ molecules

Answer 1

Conduction

Question 2

▪an excellent heat conductor and is used to line the bottom of stainless steel pans ⚜️

Answer 2

copper

Question 3

▪ conducts heat in a way that baking temperatures should be reduced by 25°F (4°C) 🎛️

Answer 3

tempered glass

Question 4

▪ what color absorbs more heat readily, which shortens baking time ⏲

Answer 4

dark, dull surfaces

Question 5

▪ it is the transfer of heat by moving
air or liquid (water/fat) currents through and/or around food 💨🌊
▪ heated air or liquid expands, becomes less dense, and rises to
the surface 🫧🔁

Answer 5

Convection

Question 6

▪ creates continuous circular currents

Answer 6

cooler, heavier air

Question 7

▪ used for baked goods 🍞
▪ allow the hot air to rise
▪ heating unit at the bottom of the
oven contributes to the rising of hot air 📛
▪ air-circulating systems
▪ fans move the air more quickly and
evenly around the food 🌫💨

Answer 7

convection oven

Question 8

▪ more prone to develop uneven tops

Answer 8

cake batters

Question 9

▪ causes foods to lose moisture

Answer 9

moving air

Question 10

▪ reduce the drying and shrinking effects in convection oven

Answer 10

injecting steam

Question 11

▪ the transfer of heat energy in the form of waves of particles moving outward from their source 〰️
▪ broiling, grilling, and microwaving
▪ the short electromagnetic waves
pass through glass, paper, and most
plastic
▪ infrared heat lamps and ovens 🚨

Answer 11

Radiation

Question 12

▪ the transfer of heat energy to a
neighboring material without
contact
▪ flat-surfaced ranges that have the
coils buried underneath
▪ consists of a smooth, ceramic
surface that allows heat transfer 🪔

Answer 12

Induction

Question 13

▪the energy associated with motion

Answer 13

kinetic energy

Question 14

▪ speeds up that motion; slows it down

Answer 14

heat; cold

Question 15

▪ increases the movement of molecules

Answer 15

heating

Question 16

▪ decreases the movement of molecules

Answer 16

freezing

Question 17

32°F or 0°C

Answer 17

freezing point

Question 18

212°F or 100°C

Answer 18

boiling point

Question 19

▪ influence the boiling and freezing
temperatures of water 💥❄️

Answer 19

altitude and other compounds in
water (i.e., sugar or salt)

Question 20

▪ the amount of energy required to
raise 1 kilogram of water 1°C

(measured between 14.5°C and
15.5°C at normal atmospheric
pressure)

Answer 20

Calories