chapter 6 Flashcards

You may prefer our related Brainscape-certified flashcards:
0
Q

electrons have what charge?

protons have what charge?

A

negative

positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

what is an atom made up of?

A

electrons
protons
neutrons
nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is an Ion?

A

atoms that can gain or lose electrons
anion= gain= negative charge
cation= lose= positive charge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what is static electricity?

A

atoms that move from atom to atom as well as from object to object

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what is induction

A

contact with a charged object

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what is the unit of charge?

A

Coulomb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

lines points outward in a force field means what?

A

positive charge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

line pointing inward in a force field means what?

A

negative charge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is electric current?

A

the flow of a charge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

unit of electric current?

A

Amps (A)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

charges move one direction.
electronic devices, batteries, solar cells
What is this called?

A

direct current (dc)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

electric field moves back and forth through wire.
current flows one way then the other with changing field.
what is this called?

A

alternating current (ac)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what is a conductor?

A

charge flows easy, many loosely attached electrons are free to move from atom to atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what is an insulator?

A

charge does not flow easily, electrons are held tightly, restricted motion.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

resistance factors are

A

type of material
length
diameter
temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

chargers to do work is called what?

A

circuit elements

16
Q

loss of electron current energy is what?

A

electrical resistance

17
Q

examples of electrical resistance

A

collisions with other electrons in current

collisions with other charges in material

18
Q
which of the following is most likely to acquire an electrostatic charge
electric nonconductor
electric conductor
both are equal likely
none of the above
A

electric conductor

19
Q

what are the three circuit elements that contribute to work?

A
voltage source(v)
electrical device(r)
conducting wires(i)(a)
20
Q
an electric current is measured in units of 
watt
volt
amp
coulomb
A

amp

21
Q

dry cell is a what

A

bettery

22
Q

In an electric current, the electrons are moving?

A

at a very slow rate