Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
the space where electric forces occur around an object.
|
electric field
|
|
|
measure of the extra positive or negative particles that an object has.
|
charge
|
|
|
objects with different charges do THIS.
|
attract or pull each other
|
|
|
2 types of charges.
|
positive and negative
|
|
|
the push or pull between objects with different charges.
|
electric force
|
|
|
objects with the same charge do THIS.
|
repel or push away from each other.
|
|
|
Objects become electrically charges when THIS happens.
|
when they gain or lose negative charges.
|
|
|
the charge that stays on an object.
|
static electricity
|
|
|
adds energy to a circuit.
|
electric cell
|
|
|
material that currents cannot easily move through.
|
insulator
|
|
|
a flow of electric charges
|
electric current
|
|
|
a material that resists but doesn't stop the flow of current.
|
resistor
|
|
|
currents are measured in THIS.
|
amperes
|
|
|
THIS is an example of an electric cell.
|
battery
|
|
|
path for an electric current.
|
circuit
|
|
|
material that currents move easily through.
|
conductor
|
|
|
Most of THESE are good conductors of electric currents
|
metals
|
|
|
a circuit that has more than 1 path for the current to travel.
|
parallel circuit
|
|
|
the energy a battery can provide is measured in THIS.
|
volts
|
|
|
a circuit that has only one path for the current.
|
series circuit
|
|
|
the space all around a magnet where the force of the magnet can act.
|
magnetic field
|
|
|
an object that attracts certain materials, usually objects made of iron or steel.
|
magnet
|
|
|
Where is a magnets pull the strongest?
|
at the poles.
|
|
|
a compass needle interacts with THIS.
|
Earth's magnetic field.
|
|
|
What are the magnet's 2 ends called?
|
magnetic poles
|
|
|
What are 2 ways to make an electromagnet stronger?
|
make more loops; increase the current.
|
|
|
a core wrapped with wires that carry current.
|
electromagnet
|
|
|
Where can electromagnets be found?
|
computer disk drives, video players, television screens, and other electronic devices.
|
|
|
What produces electricity from a magnetic field?
|
generator
|
|
|
An electromagnet is magnetic only when THIS happens.
|
When there is a current in the wire.
|
