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S1 Science: Heat and Temperature – Conduction, Convection, Radiation and the Vacuum Flask (Paper 4: mistake clinic)
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Tutor Prep Guide · heat against temperature, conduction convection and radiation, specific heat capacity calculations, and how a vacuum flask keeps drinks hot
S1 Science: Heat and Temperature – Conduction, Convection, Radiation and the Vacuum Flask (Paper 4: mistake clinic)
Paper four drills the unit, conductor and radiation misconceptions until they stop repeating.
Direct answers Remember one line: check the unit, then the medium, then the mass and specific heat.
01 Paper details (check answers afterwards)
| Item | Detail |
|---|---|
| Questions | 10 |
| Suggested time | 20 |
| Difficulty mix | Foundation 3 · Intermediate 3 · Challenge 3 · Error redo 1 |
| Chapter | Chapter: S1 Science: Heat and Temperature – Conduction, Convection, Radiation and the Vacuum Flask |
| Level | heat against temperature, conduction convection and radiation, specific heat capacity calculations, and how a vacuum flask keeps drinks hot |
02 Questions (10 items)
- FoundationWhat is the unit of heat?
- FoundationWhich are good conductors: iron spoon, wooden chopsticks, copper wire, foam cup?
- FoundationConvection happens in which kind of matter?
- IntermediateWhat most separates radiation from conduction and convection?
- IntermediateHow much energy raises 0.4 kg of water by 15 C?
- IntermediateDoes the temperature of melting ice rise at 0 C?
- ChallengeCan a flask create heat or keep a drink hot forever?
- ChallengeWhy does water boil below 100 C on a high mountain?
- ChallengeHow does heat travel through a metal?
- Error redoA student writes that hot water is always heavier than cold water. What is wrong?
03 Answers and one-line notes
| # | Answer | One-line note |
|---|---|---|
| 1 | The joule (J); the degree Celsius measures temperature, not energy. | Temperature is in Celsius, energy is in joules. |
| 2 | The iron spoon and copper wire; wood and foam are insulators. | Only metals conduct well; wood and foam insulate. |
| 3 | Only in fluids, that is liquids and gases. | Particles in a solid cannot flow, so a solid transfers heat by conduction only. |
| 4 | Radiation needs no medium and can cross a vacuum. | Heat from the Sun crossing space to Earth is radiation. |
| 5 | 25 200 J. | 0.4 times 4200 times 15 gives 25 200 J. |
| 6 | No, it stays at 0 C while heat keeps being absorbed as latent heat. | During melting the energy breaks the ice structure instead of raising temperature. |
| 7 | No; it only slows the loss, and the heat still leaks away in time. | A flask insulates; it is not a heat source. |
| 8 | Air pressure is lower there, so water boils at a lower temperature. | Boiling point falls with pressure, which is why cooking takes longer at altitude. |
| 9 | By particle vibration plus fast energy transfer by free electrons; the metal itself does not move. | Conduction moves energy, not atoms from one end to the other. |
| 10 | Above 4 C water expands on heating, so the same cup of hot water is less dense and lighter. | That drop in density is exactly why hot water rises. |
04 What to do after marking
- After marking, redo only the wrong items and write down which step went wrong (formula, unit, or misread number).
- Repeat the same item two days later; move to the next paper only when both attempts are correct.
- Parents only need the answer and note columns; there is no need to explain every item.
With all four done, go back to the chapter page and revise the three heat paths plus the three flask tricks.Tutor Registration →
Questions and answers are written originally by the TutorZone team and are not taken from any school, publisher or examination authority paper. Every value is checked by computer.