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Elctricity 21
Science Chapter 21
| Question | Answer |
|---|---|
| The Buildup of electric charges on an object is ______________ | Static Charge |
| Materials that allow electrons to move through them easily | conductors |
| Materials through which electrons cannot move easily | insulators |
| The Steady Flow of electrons through a conductor. | Electric Current |
| Circuit with one or more paths | parallel circuit |
| Rapid Movement of excess electrons from one place to another | Electric Discharge |
| The rate at which electric energy is converted to another form is called_____________. | electrical power |
| Closed Path through which current can flow is an _____________. | circuit |
| This exists around every electric charge | electric field |
| circuit with only one path is a ___________. | series circuit |
| Relationship between voltage, current, and resistance is _____________. | Ohm's Law |
| Measure of how difficult it is is for electrons to flow is ___________. | Resistance |
| Measure of electrical potential energy is _________. | voltage |
| An object becomes positively charged if it__________. | loses electrons |
| Objects with unlike charges? | attract |
| The Farther you get from an electric, charge the ____________ it gets. | weaker |
| When an object is grounded, it becomes elecrtically _______________. | neutral |
| A simple circuit consist of a conductor, wires, and ____________________ | a source of electrons |
| As energy is carried by a current increases, ___________ increases. | voltage |
| Electric energy can be stored by _________ charges. | seperating |
| In a battery, electrons flow from the ________ to the ________ terminal. | Neagative to the possitive |
| When a wire is made thicker, it's resistance_________. | decreases |
| In a series circuit, each device added to the circuit decreases the _______. | current |
| If you multiply the voltage in a circuit by the current, you are finding the _________ of the circuit. | power |
| Electric energy usage on your electric bill is measured in ___________ | kilowatt hours |
| What is the expression of Ohm's law? | Voltage= Current x Resistance (V=IxR) |
| What is the equation of Ohm's Law | V=IxR |
| Name the Two Types of Circuits. | Series and Parallel |
| Definition of electric power is? | The Amount of energy used by a device. |
| What is the unit of electrical power? | Watt |
| What is the abbreviation for Watt | W |
| What is the Term for 1000 watt units? | Kilowatt |
| What is the abbreviation for kilowatt? | kW |
| What is the expression for determinig the electrical power of a circuit? | Power= current x voltage |
| What is the formula for determinig the electrical power of a circuit? | P=IxV |
| Electricity begins at the __________ level where protons and electrons have electric charge | atomic |
| _____________carry a positive charge | Protons |
| Electrons carry a ____________ charge. | Negative |
| ___________form when atoms lose or gain electrons and become positively or negatively charged. | Ions |
| A flow of charge can be caused by ions moving in a________________ | solution (salt water) |
| All object exert an __________ __________ on each other: it can be attractive or repulsive | electric force |
| ______________ provides a pathway to drain excess charge into the earth, lighting rods provide grounding for many buildiings. | Grounding |
| Resistance is measured in ______________ | Ohms |
| Electric current is measured in. | Amps or Ampers |
| As the resitance in an electric current increases, the current in the circuit _________ | decreases |
| Insulators have a _____________ resistance then conductors | higher |
| What is the measure of how much energy a battery can provide. | Voltage |
| For safety, circuits in homes and buildings have ______________ | fuses |
| Electrons move in a circuit and have millions and millions of _________ | collisions |
| The voltage of a battery depends on the amount and type of ____________ used to create the chemical reactions in a battery. | chemicals |
| GOOD LUCK ON THIS TEST KATHERINE | I LOVE YOU |
| Negatively charged atomoc particle. | electron |
| Can result from touching unisulated wires together | shock |
| Positively charged atomoc particle. | proton |
| Holds protons and neutrons together in the nucleus. | Strong Nuclear Force |
| What like (the Same) charges do. | repel |
| Tint particles of matter. | Atom |
| Metal used for electrical | Copper |
| Gets Stronger as you get closer to an electric charge | electric field |
| What opposite charges do. | attract |
| Charge of an atom that has lost electrons | positive |
| Atomic Particle that has no change | neutron |
Created by:
Benvenutti
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