Question 1
1. A parallel-plate capacitor holds 10 µC of charge on each plate when connected to a 12 V battery. If you were to slide a dielectric between the plates while the battery maintains the voltage at 12 V, the capacitor would hold
a. more than 10 µC of charge
b. less than 10 µC of charge
c. the same 10 µC of charge
Question 2
1. Explain your reasoning for the previous question. How did you come to choose this answer?
Question 3
1. A battery has a positive side and a negative side. If you are given a battery and a light bulb in a holder with two contact points, which way or ways of hooking up the battery will light the bulb?
a. Either A or B but not C
b. C
c. A, B, and C would all light the bulb, but C would be brighter
d. none would light the bulb
Question 4
1. Record your reasoning for the previous question. How did you come to this conclusion?
Question 5
1. You have a toy car that runs on two batteries. If you could hook it up with only one battery, it would draw
a. twice as much current as with two batteries
b. half as much current as with two batteries
c. the same current as with two batteries
Question 6
1. Explain your reasoning for the previous question. How did you come to choose this answer?
Question 7
1. Which will consume more electrical power, a blender that draws 4 amps from a 120 V home outlet or a car vacuum that draws 5 amps from as 12 V car battery?
a. the blender
b. the vacuum
c. they draw the same power
d. which one draws more power depends on how long they are run
Question 8
1. Explain your reasoning for the previous question. How did you come to choose this answer?