Electrical Forces
Magnetic Forces
Electromagnets
Interactions
100
Positively-charged particles are called ____
protons
100
Our magnetic south pole is located where?
the arctic
100
Decreasing the current within a wire will do what?
decrease the magnetic field
100
What's this called?
transformer
200
What are electrical forces?
The force between charged particles or objects.
200
Name the 4 kinds of ferromagnetic materials we talked about?
iron, nickel, cobalt, and steel
200
a magnetic field generated by an electric current is called what?
electromagnetism
200
Why is AC more commonly used in bigger major areas compared to DC?
Because AC is easily changeable
300
If we have a battery with a wire connected to both ends, the current would flow from what end to what?
plus to minus or high potential to low potential
300
a stream of charged particles released from the sun.
300
Following the curled right hand rule, if a current is going downwards, which way is the magnetic field spinning?
clockwise
300
When a loop of wire is placed between magnets, what happens to the loop?
it rotates 90 degrees.
400
What's the difference between polarization and induction?
polarization is the moving electrons across atoms, not objects.
400
What are two actions decrease potential energy?
pushing opposite sides, or pulling same sides away, letting gravity take you, letting opposite charges get close
400
What's the difference between a solenoid and an electromagnet?
an electromagnet is a solenoid with a ferromagnetic core
400
What is added to fleming right hand rule compared to the curled right hand rule?
direction of force
500
What similarity does energy, mass, and charges all have?
None of them can be created nor destroyed, but can be transformed.
500
If we have two magnets facing each other, each being their south poles, what would the field lines look like?
each having inward arrows but repelling away from each other
500
What is the one main difference between a straight wire and a loop wire when talking about magnetic fields?
loops can continuously increase the strength due to the shape
500
The process of taking magnetic and mechanical energy and transforming it into electrical energy is called?
Electromagnetic Induction