U8 Electricity & Magnetism Flashcards
1
Q
- Electric charge flows from______ voltage to _____ voltage.
A
increase, decrease
U8 C3
2
Q
- Explain how a battery works.
A
a chemical reaction causes voltage difference between the positive and negative terminal of the battery. electrons flow from the negative to positive terminals.
U8 C2
3
Q
- Explain Ferromagnetism.
A
a strong magnetic field attracts previously nonmagnetic objects. it cause the atoms to become aligned within the object. this also explains why metals like nickel and cobalt become magnetic
U8 C4
4
Q
Electric charges always flow from _____ areas to _______ areas.
A
negative; positive
U8 C3
5
Q
Which of the following statements about electric charge is true?
A
Electrical force acts at a distance.
U8 C3
