Students will continue to learn about energy and energy transfer. There will be a vocabulary quiz on Friday covering both the forms of energy and electricity words. We will also be taking a test on what we have covered so far.
Students will also be learning about early explorers and settlement.
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:
o Absorbed—To take up and store energy without reflecting or transmitting that energy
o Reflected — the bouncing of heat or light off an object
o 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
o Pitch — a measurement of how high or low a sound is; depends on fast or slow vibration
o 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 positivelycharged
· 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.
o Conductor—materials that allow heat, electricity, or sound waves to pass through; a substance that allows electrical charges to travel.
o 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 electricity