Question

Imagine a string of holiday lights, with many bulbs connected to each other by wires. One bulb burns out, causing the bulbs next on the string not to work either. What type of circuit must the holiday lights be using?(4 points)

series

resistor

fuse

parallel
What three factors affect electric force? Choose all that apply(4 points)

amount of charge

whether the charge is positive or negative

the distance between two charged objects

potential kinetics of two objects
What is the effect on the strength of an electromagnet when you increase the number of coils?(4 points)

There is no effect on the strength

The strength increases

The strength decreases

Answer 1

1) series

2) Three factors:
- amount of charge
- whether the charge is positive or negative
- the distance between two charged objects
(not: potential kinetics of two objects)

3) The strength increases (more coils → stronger electromagnet)