If you rub a balloon on your hair..

the balloon gains electrons; is negatively charged

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Electricity Test Prep

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Physics a First Course 1st Ed Ch 14 & Ch 15

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Questions 16

Answers

1
A 40 watt light bulb uses 40:
watts of power every hour
joules of energy every hour
joules of energy until it burns out
joules of energy every second
2
Current in a series circuit is constant
true
false
3
Line losses prevent direct current from traveling more than ~ 1 mile
False
True
4
Voltage is constant in
Europe
parallel circuit
the light bulb
series circuit
5
Electrons in an insulator are best described as:
fixed in place
free to move
a potential difference
flowing charges
6
A property of matter that has two types; positive and negative
color
electric charge
state of matter
mass
7
An object with equal amounts of positive and negative charge is
negatively charged
electrically charged
electrically neutral
positively charged
8
Wiring in your home uses ______ circuits
three-way
parallel
series
two-way
9
If you rub a balloon on your hair..
you should call your barber
the balloon losses electrons, is positively charged
the balloon gains electrons; is negatively charged
your hair gains electrons; becoming negatively charged
10
Which current is found in the socket in your home?
series
direct
events
alternating
11
Imbalance of charge on an object
current electricity
electric discharge
electric conduction
static electricity
12
Almost all of the electrons flowing through a battery circuit come from atoms:
involved in chemical reactions at the battery's - terminal
in the wire conductor
involved in chemical reactions at the battery's + terminal
in the circuit components
13
The ability to change voltage levels easily is one advantage of alternating current
False
True
14
A negatively charged particle in an atom is a(n)
quark
proton
neutron
electron
15
The unit of electric charge
volt
coulomb
amp
ohm
16
Electric power can be calculated by:
I + R
I * V
I + V
I * R

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