1. Heat and temperature They are not the same thing
Temperature refers to how hot or cold something is
Heat is the transfer of energy from a warm object to a cooler object due to a temperature difference between the objects

2. Watch this short video explaining the difference between heat and temperature

3. Definitions Temperature (Use a thermometer)
The average kinetic energy of the molecules that make up a material
Heat (Use the formula Q= mcΔT)
The total kinetic energy of the particles in a substance

4. 3 scales used to measure temperature
Celsius
Fahrenheit
Kelvin

5. Celsius, Fahrenheit, Kelvin
On the Kelvin scale:
Water freezes at 273K
Water boils at 373K
On the Fahrenheit scale:
Water freezes at 32F
Water boils at 212F
On the Celsius scale:
Water freezes at 0C
Water boils at 100C

6. Formulas to convert from one scale to another
C  K
K= C
C  F
F= C (9/5) + 32
F  C
C = (F-32)(5/9)

7. Thermal expansion
substances can often expand or contract with a change in temperature even if they don’t change phase.
This is how thermometers work

8. Specific heat: Calorie:
Measures how much heat is required to raise the temperature of a certain mass of a given substance
Every substance has a different specific heat, but specific heat is a constant for that substance
Substances that are easily heated have a low specific heat
Calorie:
The amount of heat needed to raise the temperature of one gram of water by one degree Celsius

9. Formula that relates heat with temperature
Q= mcΔT Q= heat transfered to a material (J) m= mass of the material (g) c= specific heat of the material (J/gC°) T= change in temperature (C°)

10. Thermal equilibrium
Whenever two objects of different temperatures are placed in contact, heat will flow from the hotter of the two objects to the colder until they both have the same temperature. When they reach this state, we say they are in thermal equilibrium.

11. Latent heat of transformation
The latent heat of transformation, q, tells us how much heat it takes to change the phase of a substance

12. Methods of heat transfer
Conduction
Convection
Radiation

13. Conduction
Conduction is the transfer of heat by intermolecular collisions.

14. Convection
While conduction involves molecules passing their kinetic energy to other molecules, convection involves the molecules themselves moving from one place to another.
Occurs in liquids and gases
Hot molecules rise
Cold molecules sink

15. Radiation
Molecules can also transform heat into electromagnetic waves, so that heat is transferred not by molecules but by the waves themselves.

17. True of False?

18. The more temperature an object has, the hotter it gets
The more temperature an object has, the hotter it gets. Therefore, heat and temperature are the same thing
False

19. All of the following have kinetic energy: an ice cube, liquid water and water vapor
True

20. If you fill a cup with warm bathwater, it will contain the same amount of heat compared to the water remaining in the tub you just filled it from
False

21. A 100ml cup of hot soup will cool down faster compared to the soup left in the 2L pot (both have the same initial temperature)
True

22. Our hands are a reliable device that can be accurately used to measure the temperature of things
False

23. There are three temperature scales: Celsius, Fahrenheit and Kelvin
True

24. Heat transfers from cooler to hotter objects
False

25. A lake with a water temperature of 15C has more heat compared to the water in a mug with a temperature of 100C
True

26. The kelvin scale used to measure temperature does not have negative numbers
True

27. The hotter an object gets, the more kinetic energy it has
True

28. Water has a higher specific heat compared to copper
True