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ENERGY
What is Energy? 
• Energy – The ability to move or change matter 
What does this 
mean? 
This means that energy is needed to apply 
a force to an object to make it move. Energy is 
also needed to make a change in the state of 
matter (solid, liquid, or gas).
What is Heat? 
Heat (thermal energy)– the movement of tiny 
particles that make up matter. 
Which one has more THERMAL ENERGY? 
Solid 
Liquid 
Gas 
The GAS has the most 
Thermal Energy. The 
particles move the fastest. 
As the gas cools, the 
particles slow down and 
loose energy. Solids have 
the least amount of energy.
How do you measure thermal energy? 
Temperature – the measure of the thermal 
energy of an object 
Temperature = thermal energy = speed of particles 
A B C 
Which of these thermometers shows a 
temperature that has the most thermal 
energy? ____ 
Which shows an object that has the 
least speed in the particles?____
Energy is on the Move? 
When warm and cool objects touch, energy is 
transferred from the warmer object to the 
cooler object. 
ACTIVITY: 
Touch the metal on your desk and your paper 
with your other hand. Which one is colder? 
NEITHER! They are the same temperature. They are both 
the same temperature as the room. Why do they feel 
different them? It has to do with insulators and 
conductors.
What is an insulator? 
What is a conductor? 
Insulator – a material that does not transfer heat 
very well. 
This blanket traps 
body heat to keep 
you warm 
Conductor – a material that transfers heat very 
well. 
Pans transfer 
heat easily
Are Heat and Temperature the 
Same? 
NO 
Think back…heat is the flow of energy from one 
materials to another. 
Temperature is a measure of how hot or cold 
something is.
How Does a Thermometer Work? 
Discuss with a partner 
Write your ideas here:
Let’s figure this out… 
What happens to material when heat is added? 
That’s right…it expands or gets bigger. 
What happens to material when heat is taken 
away? Exactly, it contracts or gets smaller. 
So, when the material in 
a thermometer hotter, the 
material expands and 
moves higher in it. 
When colder, it shrinks.
Fahrenheit? Celsius? 
These are two commonly used scales for 
measuring temperature. 
1. What temperature does water 
freeze at? ____ F ____C 
2. What temperature does water 
boil at? ____ F ____ C
How is Heat Transferred? 
Heat is transferred in three ways: 
Conduction – heat transferred when two objects touch 
Convection – heat transferred by the flow of a liquid or 
a gas 
Radiation – heat transferred through space

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Thermal energypowerpointactivitypresentation

  • 2. What is Energy? • Energy – The ability to move or change matter What does this mean? This means that energy is needed to apply a force to an object to make it move. Energy is also needed to make a change in the state of matter (solid, liquid, or gas).
  • 3. What is Heat? Heat (thermal energy)– the movement of tiny particles that make up matter. Which one has more THERMAL ENERGY? Solid Liquid Gas The GAS has the most Thermal Energy. The particles move the fastest. As the gas cools, the particles slow down and loose energy. Solids have the least amount of energy.
  • 4. How do you measure thermal energy? Temperature – the measure of the thermal energy of an object Temperature = thermal energy = speed of particles A B C Which of these thermometers shows a temperature that has the most thermal energy? ____ Which shows an object that has the least speed in the particles?____
  • 5. Energy is on the Move? When warm and cool objects touch, energy is transferred from the warmer object to the cooler object. ACTIVITY: Touch the metal on your desk and your paper with your other hand. Which one is colder? NEITHER! They are the same temperature. They are both the same temperature as the room. Why do they feel different them? It has to do with insulators and conductors.
  • 6. What is an insulator? What is a conductor? Insulator – a material that does not transfer heat very well. This blanket traps body heat to keep you warm Conductor – a material that transfers heat very well. Pans transfer heat easily
  • 7. Are Heat and Temperature the Same? NO Think back…heat is the flow of energy from one materials to another. Temperature is a measure of how hot or cold something is.
  • 8. How Does a Thermometer Work? Discuss with a partner Write your ideas here:
  • 9. Let’s figure this out… What happens to material when heat is added? That’s right…it expands or gets bigger. What happens to material when heat is taken away? Exactly, it contracts or gets smaller. So, when the material in a thermometer hotter, the material expands and moves higher in it. When colder, it shrinks.
  • 10. Fahrenheit? Celsius? These are two commonly used scales for measuring temperature. 1. What temperature does water freeze at? ____ F ____C 2. What temperature does water boil at? ____ F ____ C
  • 11. How is Heat Transferred? Heat is transferred in three ways: Conduction – heat transferred when two objects touch Convection – heat transferred by the flow of a liquid or a gas Radiation – heat transferred through space