Electricity
What is a series circuit?
A circuit in which all parts are connected end to end to provide a single path of current.
attract and repel other magnets, attract only magnetic material
Magnets.
What is a Capacitor
An electrical device used to store electrical charge.
How does a switch work?
They open or close a circuit.
Formula for speed
Express conservation of charge and energy
Kirchhoff's Law
What are Magnetic Poles?
two ends of a magnet where the magnetic forces are strongest
DC current
Current flows in one direction only.
What are circuits?
used to turn electricity on and off
Formula for work
W= fd
What is Voltage Drop?
A decrease in voltage along a conductor through which current is flowing
Two ends of a magnet where the magnetic forces are repelled.
Magnet's Field Lines
Which of these is wrong:
A) Capacitor stores electricity
B) AC current is direct current
C) Close circuit is an incomplete circuit.
Letter C is wrong
Closed Circuit
a complete circuit through which electricity flows
Formula for specific heat
mass x specific heat x change in temperature
What law expreses that the current in a circuit equals the voltage difference divided by the resistance?
Ohm's Law
The force of attraction or repulsion of magnetic materials
Magnetism
Alternating current; electrons flow first in one direction and then in the other
AC current
What are Electrical symbols?
simple symbols used in circuit diagrams
Formula for weight
F = m × 9.8 m/s2,
HARD QUESTION: If a kilowatt is 1000 watts, How many microwatts is a watt?
1000000 microwatts
Capacitor Formula
C = q/V
A device used to measure voltage, or electrical potential energy difference
Voltmeter
How many watts is a Kilowatt-hour?
1000 watts per hour.
Take 500 points free!
enjoy! :D