Course Description

Overview

This course is targeted at Singapore Cambridge GCE O level students, but is also relevant to IGCSE students and Singapore's Integrated program students.

Have you tried to enjoy an ice cream on a hot day only to discover that it melts way too fast? How would you make the ice cream last longer? This video course covers the basics of how heat moves from one place to another and might just give some ideas on how to slow down this process to keep your dessert nice and frosty.

Course Content

You will learn:

  • How heat is transferred in solids
  • How heat is transferred in fluids
  • How heat is transferred in practically nothing at all (outer space)
  • How to speed up and slow down heat transfer
  • How a thermos flask works
  • Cool stuff!
  • Hot stuff!

A link to the full O level Physics syllabus can be found here

Course Prerequisites

You will need to know:

Math Arena

The instructor is from Math Arena.The instructor is absolutely passionate about teaching and you'll find the lessons engaging and ultimately rewarding.

Course curriculum

  • 1

    INTRODUCTION

    • Subject Content Requirements
  • 2

    Heat flow

    • Q1 Object A weighs 2 kg. It has a temperature of 40°C and has an internal energy of 500000 J. Object B is 2 kg. It has a temperature of 50°C and has an internal energy of 400000 J. Which of the following statements is correct?

    • Q2 2kg of ice at 0°C is floating on 5 kg of water at 0°C. Which of the following statements is true?
  • 3

    Conduction and convection

    • Q3 Conduction is a transfer of thermal energy via

    • Q4 Conduction happens in

    • Q5 Give a reason why Aluminium is a better conductor than wood

    • Q6 Convection is transfer of thermal energy due to

    • Q7 Convection happens in

    • Q8 Which of the following heat transfer processes is/are caused by the movement of particles?

    • Q9 Which of the following about conduction is/are true?

    • Q10 A double-glazed window has two sheets of glass separated by a layer of air. Which thickness of air produces the smallest energy transfer, and why?
  • 4

    Radiation

    • Q11 What is radiation?

    • Q12 Which of the following statements about radiation is/are true?

    • Q13 Which of the following heat transfer processes can take place in vacuum?
  • 5

    Controlling heat transfer

    • Q14 The white porcelain lid of a cup of hot drink is to

    • Q15 The wooden handle of a pot

    • Q16 During a barbecue, why do we always cook food on top of the charcoal?

    • Q17 Which of the following about the vacuum flask are correct?

    • Q18 Petrol storage tanks are not painted black because

    • Q19 How does a polar bear keep itself warm?

    • Q20 Which of the following is false?

    • Q21 Which of the following is false?

    • Q22 Which of the following will increase the rate of heat transfer?

    • Q23 Which of the following is true about pots?

    • Q24 Which of the following can be done to increase the rate of cooking?

    • Q25 Container A and container B are filled with equal amount of hot water and the temperature of the water in the containers is measured with a thermometer some time later. It is observed that container A has a much lower temperature than container B.

    • Q26 Expanded polystyrene is often used to make containers for storing ice-cream because the trapped air reduces the gain of thermal energy by

    • Q27 Which of the following statements about the vacuum flask is incorrect?
  • 6

    Identifying the means of heat transfer

    • Q28 The diagram shows a man standing under a shelter on a sunny day. Given that the man feels hot, which of the following shows the processes of how thermal energy from the sun reaches the man?

    • Q29 The diagram shows a man beside a campfire. How does thermal energy from the campfire reach the man?

    • Q30 The diagram shows a brick wall in between a man and a campfire. How does thermal energy from the campfire reach the man?

    • Q31 The diagram shows water being heated in a tin can. A thermometer hangs directly above it. How does thermal energy from the heat source reach the thermometer?

    • Q32 The chief mechanism for conduction in a typical metallic conductor involves
  • 7

    Interesting applications - Land breaze, sea breeze and paper pots

    • Q33 Which of the following is true?

    • Q34 Some steamboat restaurants use paper pots for their customers to boil the food themselves. What is the reason for the paper not to catch fire when in contact with the flame?
  • 8

    Structured Questions

    • SQ1 Immersion heater

    • SQ2 Refrigerator cooling fins

    • SQ3 (part 1) Mpemba effect convection

    • SQ3 (part 2) Mpemba effect graphs