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Electricity
Electricity Unit
Question | Answer |
---|---|
North and North poles do what | repel |
North and south poles will do what | attract |
In what direction does the compass always point toward | the North magnetic pole |
How does a compass work | attracted to the magnetic pull of the earth |
If there is no gap in a circuit and electricity can flow it is called what | closed circuit |
What kind of circuit has gaps in it and will not let electricity flow | open circuit |
A circuit with many paths (If one light bulb goes out others will stay on) is called what? | parallel circuit |
A circuit with only one path for electricity to flow (If a light bulb goes out they all go out ) is called what ? | series circuit |
When a wire tightly wrapped around a screw many times or wire wrapped many times to form a circle has electricity following through it, it is called what? | electromagnet |
what is the only thing that can move in an atom | electrons |
where do the protons and neutrons live? | nucleus |
what charge does a proton have | positive |
what charge does an electron have | negative |
If you have more protons than electrons, what kind of a charge will the atom have | positive charge |
if you have the same number of electrons and protons, what kind of a charge will the atom have | balanced or neutral |
if there are more electrons than protons, what charge is the atom | negative charge |
what is the goal of all atoms | to be balanced |
Something that does not conduct (let in or out) electricity is called what | an insulator |
Something that lets electricity flow freely is called what? | a conductor |
what are 3 things a motor needs to work? | electricity, magnetism, on/off switch |