Electricity And Magnetism Flashcards
42 Charges can act at a distance a which is an example of charging by
Electric field and induction
U8C1
- List two differences between series and parallel circuits and list a real world example
Series can only work one way and are simpler. Flashlight
Parallel circuits are harder and can have multiple ways to work. House
U8C3
- Explain 2 ways we discussed t keep a house from overheating
Fuse = small piece of metal within that melts when overheated to open the circuit and prevent current from flowing.
Circuit breaker= piece of metal that bends when overheated to open the circuit and prevent current from flowing.
U8C3
- Describe what an electromagnet is and its two ways to increase the strength
A temporary magnet made by placing a piece of iron in a current carrying a coil of wire
U8C4
- Explain Ferromagnetism. Make sure to include what is happening to the electrons in the atoms.
When no magnetic objects are placed in a a strong enough magnetic field + nome magnetized due to poles within their atoms aligning ( all e- orient in same direction).
U8C4
Circuit _____ represents the way homes are usually wired
Looking at the diagram tells you it’s a parallel circuit .
U8C3
Which circuit below contains the greatest voltage?
A circuit with a current of 25 amps and a resistance of 16 ohms
U8C3
What process is the method by which a neutral object obtains an electrical charge from a distance?
Induction
U8C1
In a closed circuit containing one resistor and a battery, if the voltage in the battery increases, the current going through the resistor increases. Why does this occur?
As the electrons are pushed more by the battery, they move faster through the circuit
U8C3
The function of a generator is to change _______
mechanical energy to electrical energy
This exerts a force that causes other electric charges to move.
Electrical field
Which of the following statements about electric charge is true?
Electrical forces act at a distance
