Download Review Questions

Student compiled review questions
1.) How many pathways does a series circuit have?
A. 5
B. 2
C. 9
D. 1
2.) You can pick up static electricity by walking on a wool rug in leather-soled
shoes. Explain why you are then negatively charged and what happens when you
grab for a metal object such as a doorknob.
You have been negatively charged by friction because you have picked up
electrons from the rug. As you reach for a metal object, electrons will move from
your body to the object because of their difference in electrical potential energy,
and you will experience a mild shock.
3.) What’s Potential Difference?
Potential difference is the work that must be done against electric forces to
move a charge from one point to another.
4.) Potential difference is measured in volts?
True or False?
5.) What is a superconductor?
A conductor that provides zero resistance when it falls below a certain
temperature
6.) Current is the flow of electricity
True or False?
7.) Opposite charges repel
True or False?
8.) If a circuit open its complete
True or False?
9.) Switches open and close a circuit
True or False?
10.) What causes resistance? What is it measured in?
Internal friction. Measured in ohms.
11.) An open circuit is a pathway that in not connected, current cannot flow
through?
True or False?
12.) What do charged particles produce?
a. protons
b. electrons
c. electric field
d. magnetic field
13.) Electric field lines indicate
a. direction only
b. relative strength only
c. both direction and relative strength
d. neither direction nor strength
14.) Current is the rate at which charges move through a(n)
a. conductor
b. insulator
c. voltage
d. joule
15.) Batteries typically have
a. two positive terminals
b. two negative terminals
c. one positive and one negative terminal
d. no terminals
16.) What is charging by friction?
Materials can be charged when two surfaces are in contact, and one surface
transfers electrons to the other
17.) What is charging by contact?
Objects without charge (neutral objects) can become charged if they are
touched by a charged object
18.)
Is the charge shown in the figure above positive or negative?
Negative
19.) Why do electrical devices feel warm after they have been on for a period of
time?
Electrical devices feel warm because kinetic energy is transferred from
moving electrons to surrounding materials, causing the atoms to vibrate
20.) What does a circuit breaker do?
Automatically opens when the current gets too high
21.)
Does the schematic diagram above represent a series or parallel circuit?