Electric Force
What is the unit for measuring electric current?
Amperes (amps)
Explain how static electricity is transferred through friction
What is magnetic force?
A push or pull created by a magnet
How can you change the direction of the magnetic field with a current?
Change the direction of the current
What happens to a positively charged object next to a negatively charged object?
They are attracted to each other
What is an electric force?
The push or pull between charged particles or objects
What is static electricity?
The build up of charge on an object
What are the three ferromagnetic metals?
Iron, cobalt, and nickel
Why does looped wire work better than straight wire to strengthen a magnetic field?
Within the loop, the magnetic field lines are closer together
What happens when two positively charged objects are next to each other?
They repel each other
Explain the difference between conductors and insulators.
Conductors allow for electrons to move more freely while insulators don't. Therefore, conductors can carry an electric charge better
What is static discharge?
Charge transfers from one object to another until both become neutral, sometimes resulting in a spark or shock
What is a magnet?
A ferromagnetic object that has a positive side and a negative side
How did Christian Orsted discover electromagnetism?
A compass needle moved when it was placed close to an electric current
What are the three subatomic particles in an atom and what is the charge of each one?
Proton (Positive), Neutron (Neutral), Electron (Negative)
What is voltage?
The difference in potential energy between a point of high PE and a point of low PE
Explain how a static charge is transferred through conduction
How does the Earth's magnetic field protect the Earth from solar wind? How can this be seen?
The Earth's magnetic field deflects charged solar particles. This can be seen in an aurora
What is a solenoid?
A coil of wire with a current with one end that acts like the north pole of a magnet and the other end which acts like the south pole
What are the positive and negative sides of a magnet called?
Poles
What is an electric field?
A region around a charged particle/object that exerts an electric force
Explain how static electricity is transferred through induction
The charged object does not have to be touching another object but uses the electric field
How is Earth's magnetic field both similar and different to normal magnets.
Earth also has two poles, but while the north side of a magnet is positive, the Earth's north pole is negative, and while the south side of a magnet is negative, the Earth's south pole is positive
What is an electromagnet?
A solenoid with a ferromagnetic core
What does it mean for an object to become polarized?
The object develops a positively charged side and a negatively charged side