Electricity
do opposite charges attract or repel?
attract
Do like charges attract or repel?
repel
what is a magnet?
a material that gives off an external magnetic field, making it possible to apply a force over a distance.
do all magnetic objects have a force between them?
yes
which month has the least amount of days
febuary
What is matter?
anything that has mass and takes up space.
what are materials that block the flow of electrons through them?
insulators
where is magnetic force the strongest?
magnetic pole.
what will make a electromagnet's magnetic field stronger?
the more loops of the wire.
what has a lot of keys but can't unlock anything
a piano
what are materials that allow electrons to flow easily?
conductors
what tool is used to detect the presence and magnitude of electric charge?
Electroscope
what is Ferromagnetism?
A phenomenon where objects placed in a strong magnetic field become magnetized.
what is a electromagnet?
a temporary magnet.
how many hours are in a day
24
What are THREE ways charge can be transfered?
Conduction, direct contact, and conductors
Give an example of static discharge?
lightning
what is an Electric motor?
a device that uses an electromagnet to convert electrical energy into mechanical energy.
why does Earth have a north and south pole?
because earth's core is made of various metals that act like a giant bar magnet in earth.
how many days are in a week
7
What causes static electricity?
if electrons move, it can create an imbalance of charge.
what does the law of conservation of charge say?
charge cannot be created or destroyed, only transferred; net electric charge is always constant.
what is a Generator?
A device that uses an electromagnet to convert mechanical energy into electrical energy.
how do make a temporary magnet?
By placing a piece of iron inside a current carrying coil of wire
what is the first day of the week
sunday