Question

combustion
hot air inflates a hot air balloon

radition
heat from the air is absorbed by ice cubes.

convection
a hot horseshoe transfers heat to the tongs

a pot sitting on a hot burner

a bowl of oatmeal cools

water is warmed over a fire

Answer:

To solve this, we identify the heat transfer method (conduction, radiation, convection) for each scenario:

1. Hot air inflates a hot air balloon

• Explanation: Hot air rises (less dense), cold air sinks. This is fluid (air) movement carrying heat.
• Type: Convection

2. Heat from the air is absorbed by ice cubes

• Explanation: Heat travels through air (electromagnetic waves) to ice. No direct contact/fluid movement.
• Type: Radiation

3. A hot horseshoe transfers heat to the tongs

• Explanation: Direct contact between hot horseshoe and tongs (solid - solid). Heat moves through direct contact.
• Type: Conduction

4. A pot sitting on a hot burner

• Explanation: Direct contact between pot (solid) and burner (solid). Heat moves through direct contact.
• Type: Conduction

5. A bowl of oatmeal cools

• Explanation: Heat from oatmeal moves to surrounding air (fluid) via movement (rising warm air, sinking cool air) or direct heat - air interaction (but cooling via air movement/heat loss to air, which can involve convection or radiation; more likely convection as it’s a fluid - solid interaction with movement). Alternatively, radiation (heat loss via EM waves), but convection is common for cooling of hot food. However, if considering heat loss to air, convection (air movement) or radiation. But typically, for a hot bowl, heat transfers to air (convection: warm air rises, cool air replaces) or radiation. But more accurately, when a hot object cools in air, it’s often a mix, but the primary here is Convection (air movement) or Radiation (heat loss via waves). Wait, actually, when a hot bowl cools, heat is transferred to the air (convection: air near the bowl gets hot, rises, new air comes in) and also radiation. But the most dominant for cooling in air is convection. Alternatively, if the question is about the heat transfer from oatmeal to air, it’s convection. But let's check: Oatmeal (hot) → air (cool). The air near the oatmeal is heated, becomes less dense, rises, and cooler air moves in. So Convection (or Radiation? Wait, no: Conduction is direct contact, Convection is fluid movement, Radiation is EM waves. So oatmeal (solid - liquid) to air (gas) – heat transfer from oatmeal to air is convection (air is a fluid, and movement of air carries heat). So Convection (or maybe Radiation? Wait, no, when an object cools, it emits radiation (infrared), but also transfers heat to the air via convection. But in the context of a bowl of oatmeal cooling, the primary mode is likely Convection (as the air moves). Alternatively, if the answer expects Radiation, but no – let's re - think. The oatmeal is hot, the air around it is cooler. Heat moves from oatmeal to air: if the air is still, it’s conduction (but air is a poor conductor), so convection (air movement) or radiation. But in most cases, for such a scenario, the answer is Convection (or maybe the question considers it as Radiation? Wait, no, the first column is “Convection” (hot air balloon: convection), second “Radiation” (heat from air to ice: radiation – wait, no, heat from air to ice: air is hot, ice is cold. Heat moves from air to ice: if air is in contact with ice, it’s conduction (air is a gas, but in contact with ice, heat transfer via conduction? No, air is a poor conductor. Wait, maybe the second column is “Radiation” (heat from the sun to ice, but here it’s heat from air to ice. Maybe the original labels are misspelled? The first label is “Convection” (correct), second “Radiation” (maybe “Radiation” is misspelled as “radition”), third “Conduction” (misspelled as “consectin”). So re - aligning:

• Convection: heat transfer via fluid (liquid/gas) movement.
• Radiation: heat transfer via electromagnetic waves (no medium needed).
• Conduction: heat transfer via direct contact (solids, or stationary fluids).

So correcting the labels:

1. Hot air inflates a hot air balloon: Convection (air is fluid, hot air rises – convection).
2. Heat from the air is absorbed by ice cubes: Wait, air to ice: if air is warm, ice is cold. Heat moves from air to ice. If air is in contact with ice, it’s conduction (but air is a poor conductor), but maybe the scenario is heat from the sun (radiation) to ice, but the text says “heat from the air”. Maybe the label is “Radiation” (misspelled), and the scenario is heat from the sun (radiation) to ice, but the text says air. Alternatively, maybe the second column is “Conduction” (no). This is confusing, but assuming the labels are Convection, Radiation, Conduction (misspelled), then:

• Convection: hot air balloon (correct), water warmed over fire (convection: water is fluid, hot water rises, cool water sinks), a bowl of oatmeal cools (convection: air movement).
• Radiation: heat from air to ice (maybe miswritten, should be heat from sun to ice – radiation).
• Conduction: hot horseshoe to tongs (direct contact), pot on hot burner (direct contact).

So re - assigning:

• First row, first column (Convection): Hot air inflates a hot air balloon ✔️
• First row, second column (Radiation): Heat from the air is absorbed by ice cubes (if “air” is miswritten as “sun”, then radiation; else, maybe conduction, but unlikely).
• First row, third column (Conduction): A hot horseshoe transfers heat to the tongs ✔️ (direct contact)
• Second row, first column (Conduction): A pot sitting on a hot burner ✔️ (direct contact)
• Second row, second column (Convection): A bowl of oatmeal cools ✔️ (air movement, convection)
• Second row, third column (Convection): Water is warmed over a fire ✔️ (water is fluid, convection)

Final Answers (matching each scenario to heat transfer type):

1. Hot air inflates a hot air balloon: $\boldsymbol{\text{Convection}}$
2. Heat from the air is absorbed by ice cubes: $\boldsymbol{\text{Radiation}}$ (assuming “air” is a misprint for “sun” or the heat source is radiant)
3. A hot horseshoe transfers heat to the tongs: $\boldsymbol{\text{Conduction}}$
4. A pot sitting on a hot burner: $\boldsymbol{\text{Conduction}}$
5. A bowl of oatmeal cools: $\boldsymbol{\text{Convection}}$
6. Water is warmed over a fire: $\boldsymbol{\text{Convection}}$

(Note: The misspelled labels are assumed to be Convection, Radiation, Conduction for the three columns, respectively.)