Update Unit_4_Physics_Study_Sheet.md

Grade 9/Science/SNC1DZ/Unit_4_Physics_Study_Sheet.md

@@ -1 +1,48 @@
-# Unit 4: Physics
+# Unit 4: Physics
+Alexander Wang
+Ms.Keras
+SNC1DZ-01
+2019-05-08
+
+**SCIENCE — ELECTRICITY UNIT**
+* Electricity Word List
+* Static Electricity — an imbalance of electric charge on the surface of an object
+* Electron — a negatively charged particle  in an atom
+* Proton — a positively charged particle in the atom’s nucleus
+* Electric charge — a form of charge, either positive or negative, that exerts an electric force
+* Neutral charge — an object that has equal numbers of protons and electrons
+* Negatively charged object — an object that has more electrons than protons
+* Positively charged object — an object that has fewer electrons than protons
+* Electric force — the force exerted by an object with an electric charge; can be a force of attraction or a force of repulsion
+* Induced charge separation — a shift in the position of electrons in a neutral object that occurs when a charged object is brought near it
+* Charging by friction — the transfer of electrons between two neutral objects (made from different materials) that occurs when they are rubbed together or come in contact (touch)
+* Electrostatic series — a list of materials arranged in order of their tendency to gain electrons
+* Charging by conduction — charging an object by contact with a charged object
+* Grounding — connecting an object to a large body, like Earth, that is capable of effectively removing an electric charge that the object might have
+* Conductor — a material that lets electrons move easily through it
+* Insulator — a material that does not easily allow the movement of electrons through it
+* Charging by induction — charging a neutral object by bringing another charged object close to, but not touching, the neutral object
+* Electric discharge — the rapid transfer of electric charge from one object to another
+* Lightning — a bolt of electricity from sky :D
+* Current electricity — the controlled flow of electrons through a conductor
+* Electric circuit — a continuous path in which electrons can flow
+* Switch — a device in an electric circuit that controls the flow of electrons by opening (or closing) the circuit
+* Load — the part of an electric circuit that converts electrical energy into other forms of energy
+* Electrical energy — the energy provided by the flow of electrons in an electric circuit
+* Electric cell — a device that converts chemical energy into electrical energy
+* Fuel cell — ?
+* Direct current (DC) — a flow of electrons in one direction through an electric circuit
+* Alternating current (AC) — a flow of electrons that alternates in direction in an electric circuit
+* Electrical power — the rate at which electrical energy is produced or used
+* Kilowatt - Hour — the SI unit for measuring electrical energy usage; the use of one kilowatt of power for one hour
+* Efficiency — comparison of the energy output of a device with the energy supplied
+* Circuit — a way of drawing an electric circuit using standard symbols
+* Series circuit — a circuit in which the loads are connected end to end so that there is only one path for the electrons to flow
+* Parallel circuit — a circuit in which the loads are connected in branches so that there are two or more paths for electrons to flow
+* Potential difference (voltage) — the difference in electrical potential energy per unit charge measured at two different points; measured in volts
+* Voltmeter — a device used to measure potential difference (voltage)
+* Electrical resistance — the ability of a material to oppose the flow of electric current; measured in ohms
+* Ohmmeter — a device used to measure resistance
+* Resistor — a device that reduces the flow of electric current
+* Ohm’s law — the straight line relationship between voltage and current; R = V/I
+