science quiz #2
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| what causes electricity | jumping electrons
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| what is the movement of electricity | current
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| what are the two types of current | direct current and alternating current
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| what is alternating current | when the generator switches charges and makes the electrons go back and forth
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| what is direct current | when there is a circuit and the electrons flow from negative to positive
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| what are the two types of electricity | static electricity and normal electricity
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| what makes static electricity special | it stays in one spot and quickly dissipates
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| a circuit with two or more branches for current to flow | parallel circuit
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| material that electrons can move through | conductor
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| flow of electrons through a conductor | electric current
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| made up of a series of parallel circuits | complex circuit
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| device to break a circuit | switch
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| poor conductor of electricity | insulator
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| unit for measuring electric current | volt
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| having to many or to few electrons | electric charge
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| a temporary source of electricity | battery
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| rate at which a device converts electrical energy to another form of energy | power
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| path of electric conductors | circuit
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| device that detects electrical charges | electroscope
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| opposition to the flow of electricity | resistance
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| electric circuit where electric current flows through all parts of the circuit | series circuit
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| unit to measure the electric potential | ampere
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| what are the three parts of the atom | electrons protons and neutrons
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| what is the charge of an electron | negative
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| what is the charge of a proton | positive
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| what is the charge of a neutron | neutral
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| how did magnets get their name | the magnetic rock magnetite was found near the Greek city of magnesia
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| what is another name for a magnet | lodestone
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| what metal do magnets attract well | iron
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| what are the three degrees of magnetic attraction | ferromagnetic, paramagnetic, diamagnetic
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| what is an ferromagnetic | very easily attracted by magnets
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| what is an paramagnetic | slightly attracted by magnets
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| what is diamagnetic | repelled by magnets
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| what is the name for the push or pull of a magnet | magnetic force
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| what is the area around a magnet where its forces can be observed | magnetic field
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| what are the two main properties of magnets | they always point north/south and attracts iron
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| what are the two you can demagnetize a magnet | heat or force
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| who developed the first battery | A. Volta
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| what happens when you break a magnet | you get two smaller magnets
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| what is heat | energy created by the movement of molecules
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| what happens to molecules when heat is added | they move faster and spread out
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| what happens to molecules when heat is taken | they slow down and take up less room
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| what is the movement of heat through a solid | conduction
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| what is the movement of heat through liquids or gasses | convection
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| what is radiation | the movement of heat in waves
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| what is the measure of heat | temperature
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| what are the three scales for measuring the amount of heat | Fahrenheit, Celsius, and Kelvin
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| what is the boiling point for Fahrenheit | 212˚
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| what is the freezing point for Fahrenheit | 32˚
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| what is the boiling point for Celsius | 100˚
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| what is the freezing point for Celsius | 0˚
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| what is the boiling point for Kelvin | 373˚
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| what is the freezing point for Kelvin | 273˚
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| what is absolute zero | when all molecules stop moving
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| what temperature is absolute zero in Celsius | -273˚
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| what temperature is absolute zero in Fahrenheit | -459˚
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Created by:
evan787
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