Heat Presentation

1. By Theodora Carlisle
Heat
Presentation

2. WHAT IS HEAT?
 Heat is thermal energy that is
transferred from one thing to
another due to temperature
difference
 Note that substances do not
contain heat, they contain
thermal energy.
 Heat is thermal energy in
motion

3. The Sizzle on Heat
 Studied to understand how things act at varying temperatures
 Atoms and molecules have more heat when they move faster due to more energy
 Heat is caused by friction or burning
Rubbing hands together produces heat due to friction, try it!

4. THERMAL
ENERGY IS...
 Total energy of submicroscopic particles that make up a
substance
 Thermal energy comes from when molecules and atoms
experience a rise in temperature causing increasingly
rapid vibrations

5. Where Does
Thermal Energy
Come From?
 Heated up sources are where
you'll find thermal energy
 Rise in temperature causes
particles to speed up and bump
into each other
 The hotter the substance, the
more its particles move, and the
higher its thermal energy.

6. How about
Temperature?
Temperature is the quantity that shows how
hot or cold an object is.
Temperature corresponds to the degree of
hotness on a chosen scale.
Celsius, Fahrenheit, and Kelvin measure
temperature.

7. Celsius vs. Fahrenheit
 On a scale from 0-
100
 0° is the freezing
point of water
 100° is the boiling
point of water
 Not in units of 100
 32° is the freezing
point of water
 212° is the boiling
point of water

8. Kelvin?
 The Kelvin Scale begins at absolute zero, or
the lowest temperature where molecules
have lost all kinetic energy
 There are no "degree" measurements in
Kelvin
 No negative numbers
 Melting point of ice is 237 K
 Boiling point of water is 373 K

9. What's the Difference?
HEAT THERMAL ENERGY TEMPERATURE
 The flow of thermal
energy
 In motion
 Total Kinetic Energy
an object
possesses
 Movement of
particles due to
being heated
 Used to measure
heat
 Measured on
thermometer

10. Which Country Uses
Which?
 Most countries in the
world use Celsius to
measure temperature
 Only 5 countries still use
Fahrenheit
 Bahamas
 Belize
 Cayman Islands
 Palau
 United States of America

11. References
Hewitt, P. G., Suchocki, J., & Hewitt, L. A. (2017). Conceptual physical science. Pearson.
https://wonders.physics.wisc.edu/what-is-heat/
https://www.solarschools.net/knowledge-bank/energy/types/thermal
https://www.informationin.com/2014/10/fahrenheit-is-used-only-by-5-countries.html
https://www.youth4work.com/Talent/Mechanical-Engineering/Forum/118081-what-is-the-
difference-between-heat-energy-and-thermal-energy?yFast=On