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35 Cards in this Set
- Front
- Back
________ ________ are wired from top and bottom so when one goes out, the other doesn't.
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Parallel circuits
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______ ________ are wired from side-side, so when one goes out, so does the other
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Series circuits
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what type of circuits are most houses wired in?
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Parallel circuits
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series circuits have the _____ voltage
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same
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parallel circuits have slightly _____ voltage
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different
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_____ to ______ won't work when trying to connect a dry cell for light
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negative, negative
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double the voltage means you...
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double the light
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measured in ohms, symbol is R
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resistance
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measured in amps, symbol is I
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current
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measured in volts, symbol is V
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voltage
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measured in watts, symbol is P
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Power
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measured in ohms, symbol is V
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Volts
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measured in watts, symbol is A
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Amps
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formula for ohms law
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V=IR
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formula for power
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P=VI
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two types of magnets
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temporary and permanent
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how do permanent magnets lose magnetism?
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Dropped or mis-stored
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name 3 ways to increase tje strength of electromagnets
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Add coils
increase voltage use an iron bar down the middle |
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state the law of magnetism
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opposites attract, likes repel
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true or false
different substances have different specific heats |
true
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amount of heat needed to raise 1g of a substance
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specific heat
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water's specific heat
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4.18 J/g'C
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heat travels through solids
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conduction
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heat travels through nothing
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radiation
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heat travels through liquids and gases
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convection
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electromagnetic radiation felt as heat
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IR rays
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name the common states of matter
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Solid
Liquid Gas |
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motion of particles for a solid
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Vibrate close
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motion particles for a liquid
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swirl fairly close
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motion particles for a gas
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swirl moving very fast
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changing processes
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melting
feezing vaporization condensation sublimination |
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amount of heat needed to melt 1g of a substance already at melting point
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heat of fusion
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amount of heat needed to vaporize 1g of a substance already at boiling point
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heat of vaporization
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V(cm3)and T'K of a gas are directly related
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Charle's Law
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Boyle's Law states:
V(cm3) and ATM of a gas sample are _______ related |
indirectly
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