Week of Jan 28-Feb 1 Focus Energy and Energy Transfer
Vocabulary QUiz: Friday 2/1 (all words)
Packet:What Causes Hurricanes?
Homework: Study Vocabulary
Finish Packet if not completed in class
(Mon. Day 1, Tues. Day 2, Wed. Day 3, Thurs. Day 4)
4 Folds from last week’s Quiz Due Wed 1/30
Electrical Energy Vocabulary Quizlet
Vocabulary Energy and Electricity
ENERGY
Energy — the ability to do work or cause change; can be changed into different forms and can move between objects.
FORMS OF ENERGY:
- Chemical Energy — energy that can be released by a chemical reaction
- Electrical Energy — energy that comes from an electric current
- Light Energy — energy that we can see directly. Light energy can be:
- Absorbed—To take up and store energy without reflecting or transmitting that energy
- Reflected — the bouncing of heat or light off an object
- Refracted — the bending of light
- Mechanical Energy—energy an object has due to its motion or position
- Nuclear Energy—energy caused by the splitting of atoms
- Solar Energy — energy that comes from the sun
- Sound Energy — energy in the form of vibrations that travel through a substance
- Pitch — a measurement of how high or low a sound is; depends on fast or slow vibration
- Vibration – the rapid movement of an object back and forth
- Thermal Energy — energy caused by heat
TYPES OF ENERGY:
- Kinetic Energy - energy of motion
- Potential Energy – energy based on position or condition
ELECTRICITY
Atom—the smallest unit of an element; containing the same properties of the element
- Neutron—a particle within the atom (subatomic) that carries no electrical charge; it has a neutral charge
- Proton—a particle located in the nucleus of an atom (subatomic) that is positively charged
- Electron-–a particle within an atom (subatomic) that has a negative charge
Charge—a measure, can be positive or negative; force of electro magnetic interaction.
- Positive—an electric charge with more protons than electrons; the opposite of a negative charge
- Negative—an electrical charge in which there is a build up of electrons; the opposite of a positive charge
Static Electricity – electric charges that build up or collect on an object.
Attract—to pull or draw towards
Repel—To force or push away.
Electrical Energy —energy that comes from an electric current
- Current —the flow of electric charges through a material
- Circuit —a closed path that an electrical current can flow through
- Conduct —To transmit heat or electricity through a medium.
- Conductor—materials that allow heat, electricity, or sound waves to pass through; a substance that allows electrical charges to travel.
- Insulator—A material used to reduce or prevent the transfer of electricity, heat, or sound.
Electromagnet — a metal object that acts as a magnet when an electric current moves through it; giving it magnetic properties
Generator — a machine that converts mechanical energy into electrical energy
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