Static Electricity
What type of charge attracts a negative charge?
+
Which component is shown by a circle with a cross inside?
lamp
What is electric current? (and what is its units?)
flow of electric charge - amps
What unit is voltage measured in?
volts
What are the two poles of a magnet called?
north, south
What happens when two objects with the same type of charge come near each other?
repel
Which component is shown by one vertical long line and one short line?
battery/cell
In a series circuit, is the current the same everywhere or different?
same
What does voltage measure?
The energy given to charges (push on the charges)
What happens when a north pole is brought near another north pole?
repel
Why does static electricity build up more easily on materials like plastic than on metal?
Because plastic is a non-conductor (insulator), so charges cannot move away easily
Which symbol shows a break in a line with a lever?
switch
In a parallel circuit, does current split or stay the same in each branch?
splits
In a series circuit, how does the voltage of the battery compare to the voltage across each component?
The battery voltage is shared (split) between components
What is the name of the invisible area around a magnet where magnetic forces act?
magnetic field
What is/What does a Van de Graaff generator do?
It builds up a large amount of static charge on a metal dome
Which component is shown by a circle with an A in the middle?
ammeter
If one bulb breaks in a series circuit, what happens to the current?
stops everywhere
If two identical bulbs are connected in series, how is the voltage divided?
shared equally
What shape are magnetic field lines around a bar magnet?
They curve from North to South in loops
Explain why you might get a small shock after walking on carpet and touching a metal door handle.
Friction builds up static charge on your body. When you touch metal (a conductor), the charge quickly flows to the ground, causing a spark/shock.
Which component is shown as a circle with a V in the middle?
Voltmeter
If a parallel circuit has two identical branches, how does the total current compare to the current in one branch?
sum of both branches = total current
Why are bulbs usually brighter in parallel than in series?
In parallel, each bulb gets the full battery voltage. In series, the voltage is shared, so each bulb gets less energy.
How are magnetic fields and electric fields similar?
Both are invisible fields around objects that cause forces without touching.