1. Vocab of the Day

2. Types of Energy Notes

3. Conductors & Insulators

4. Thermal Expansion Article

5. Heat Transfer Notes

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​Today's Agenda

​Quizizz

Vocab of the Day

​Conduction

heat transfer between objects that are touching

Vocab of the Day

​Convection currents

when heating a liquid or gas, a circular motion is created from hotter fluids

Vocab of the Day

​insulator

a material that does not allow heat or electricity to pass through easily

Vocab of the Day

​conductor

a material that allows heat and/or electricity to pass through easily. Metals are usually the best conductors

Vocab of the Day

​thermal equilibrium

the point at which two objects are touching reach the same temperature

​​ Types of Energy Notes

• Energy - the ability to do work

• Kinetic energy - the energy of motion

• Thermal energy - the total kinetic energy due to the motion of the atoms in a substance

• Electrical Energy Transfer - When an electrical source (ex. battery or generator) is connected in a complete circuit to an electrical device

• Electromagnetic Waves - can transmit energy through matter or empty space

• Mechanical Energy Transfer - when a warm object is in contact with a cooler object

• Thermal energy is transferred through a material by the collision of atoms within the material

• Thermal energy is always transferred from warmer to cooler objects until thermal equilibrium is reached

​​ Conductors & Insulators

• Conductor - a material that transfers thermal or electrical energy very well

• Insulators do not let heat and electricity pass easily through them

• Thermal expansion - an increase in the size of a substance in response to an increase in the temperature of the substance

​​ Thermal Expansion Article

• Go to the link: https://shorturl.at/ENEDd

• Answer the next 4 questions

​​ Heat Transfer Notes

• CONDUCTION - heat transferred when two objects touch. (works best in solids)

• CONVECTION - heat transferred by the circulation or movement of a liquid or gas. (fluids)

• A fluid is a liquid or gas that has the ability to flow

• The upward movement of warm air and downward movement of cool air forms convection currents

• RADIATION - heat transferred through matter or empty space (no direct contact) by electromagnetic waves

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