Electricity
What are examples of insulators?
What is plastic, wood, air, rubber.
What is a circuit?
Net movement of electric charge in a single direction.
What is Electric Current?
A material that gives off an external magnetic field, making it possible to apply a force over distance.
What is Magnet?
What Voltage produces a current of 200 amps with a resistance of 20 ohms?
What is V=4,000?
Transfer of electrons through rubbing objects
What is Friction?
Only has one pathway. Ex: Flashlight, holiday lights
A device that converts chemical energy to electrical.
What is a Battery?
Force is the strongest at?
What is Magnetic poles?
19 V battery produces a current of 5 amps. what is the resistance?
What is 3.8R?
What law states that charge cannot be created or destroyed, only charge transferred
More than one pathway.
What is Parallel Circuit?
The tendency of a material to oppose the flow of electrons through it.
What is Resistance?
External force given off by a magnet; strongest at the poles.
What is magnetic field?
if the voltage is 100 and the current is 25. Then what is the resistance?
What is 4?
Measures Voltage drop.
What is Voltmeter?
The push (force) that causes charges to move.
What is Voltage difference?
Temporary Magnet made by placing a piece of iron inside a current carrying coil of a wire.
What is Electromagnet?
Keith found the total resistance of a circuit which was 40. Then he took 40 and times it by the current. If the voltage was 420V what is the current?
What is 10.5?
Charged particles placed in the electric field will be?
What is pushed or pulled?
Voltage stays the same throughout.
What is Parallel Circuit?
Amount of current is directly proportional to the voltage difference.
What is Ohm's law?
How nonmagnetic elements like iron, cobalt or nickel can become attracted to magnets.
What is Ferromagnetism?
lets say you have 5 light bulbs. 2 of them have the resistance of 20 and the other 3 have the resistance of 40. You have one battery that has a Voltage of 300. what is the current? Then lets say you add 1 more light bulb with the resistance of 50. What is the current now? V=IR
what is 1.875?
What is 1.43?
2(20)+3(40)=160R 2(20)+3(40)+50=210
300 / 160 = 1.875 300/210=