Electricity 1 Flashcards
(39 cards)
When amber was rubbed with other materials, it became charged with a mysterious force. What was it rubbed with?
Dried leaves and wood shavings.
Benjamin Franklin called the attractive and repellant kinds of electricity…
Positive and Negative
Electricity is produced by ______ and ________.
Electrons and Protons
Matter is…
Anything that has weight and occupies space.
______ are the basic materials that make up all matter.
Elements
Water is made of
Hydrogen and oxygen.
Salt is made of sodium and
Chlorine.
The atomic number is the same as an atom’s number of
Protons.
A proton is 1/3 the diameter of an electron but contains _______ times more mass.
1840
Charged atoms are called
Ions
The atoms of all the known elements can have up to _____ shells.
Seven
Electricity is produced when____ are freed from their orbits.
electrons
Materials that have electrons that are freed easily are called ______?
Conductors
Insulators are materials where their electrons are freed _____
difficultly.
Electricity as a result of rubbing materials together is called _____.
Triboelectricity
Piezoeletricity is the result of _______
Pressure being converted into electricity.
Electric current travels at ________.
the speed of light
When a good conductor is put directly across the terminals of a power source,
a short circuit is produced.
Electric current travels from ___ potential to ___ potential.
Low, high
Charge is determined by the number of electrons that the object has ________.
lost or gained
Light can also be produced from _______, _______, and ________.
Fluorescence, phosphorescence, and electroluminescence.
Any conductor that carries an electric current will act like a ______.
Magnet
You can demagnetize an object by _______, _________, and _______.
Striking, heating, and applying a rapidly reversing field.
The compass needle points to the _____ magnetic pole.
North
