1. j. conductors: materials that allow electric current to pass through them easily
2. g. insulators: materials that resist the flow of electric current through them
3. i. resistance: measure of the opposition to current flow in an electrical current
4. b. voltage: the difference in electrical energy per unit charge across two points in a circuit
5. f. battery: a common DC power source
6. c. circuit: a closed path for transmitting electricity
7. a. fuse: an electrical safety device used to protect a circuit from surges in electricity
8. l. Ohm's Law: states that voltage = current x resistance
9. e. parallel circuit: a circuit in which there are multiple paths from the negative terminal of a battery to the positive
10. h. series circuit: a circuit in which there is only one path from the negative terminal of a battery to the positive terminal
11. k. switch: device used to easily start and stop the flow of electrical current
12. d. electromagnet: a device consisting of an iron or steel core which magnetizes by an electrical current running through a wire coil that surrounds the core
Question 2
Match the vocabulary word to its definition.
Column A
1.
conductors:
conductors
2.
insulators:
insulators
3.
resistance:
resistance
4.
voltage:
voltage
5.
battery:
battery
6.
circuit:
circuit
7.
fuse:
fuse
8.
Ohm's Law:
Ohm's Law
9.
parallel circuit:
parallel circuit
10.
series circuit:
series circuit
11.
switch:
switch
12.
electromagnet:
electromagnet
Column B
a.an electrical safety device used to protect a circuit from surges in electricity
b.the difference in electrical energy per unit charge across two points in a circuit
c.a closed path for transmitting electricity
d.a device consisting of an iron or steel core which magnetizes by an electrical current running through a wire coil that surrounds the core
e.a circuit in which there are multiple paths from the negative terminal of a battery to the positive
f.a common DC power source
g.materials that resist the flow of electric current through them
h.a circuit in which there is only one path from the negative terminal of a battery to the positive terminal
i.measure of the opposition to current flow in an electrical current
j.materials that allow electric current to pass through them easily
k.device used to easily start and stop the flow of electrical current
l.states that voltage = current x resistance
7 answers
Question 3
Which of the following materials are good conductors? (Select all that apply)
a
plastic
b
copper
c
gold
d
rubber
Which of the following materials are good conductors? (Select all that apply)
a
plastic
b
copper
c
gold
d
rubber
b. copper
c. gold
c. gold
Question 5
Which of the following are characteristics of a good conductor? (Select all that apply.)
a
Conducts electricity
b
Resists the flow of electrons
c
Poor conductor of electricity
d
Allows electrons to flow easily
Which of the following are characteristics of a good conductor? (Select all that apply.)
a
Conducts electricity
b
Resists the flow of electrons
c
Poor conductor of electricity
d
Allows electrons to flow easily
a. Conducts electricity
d. Allows electrons to flow easily
d. Allows electrons to flow easily
In which kind of material is charge most easily transferred?
a
insulators
b
semiconductors
c
conductors
d
train conductors
e
nonconductors
a
insulators
b
semiconductors
c
conductors
d
train conductors
e
nonconductors
c. conductors