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Electricity
Test Description: Questions on Electricity got 8th grade.
Instructions: Answer all questions to get your test result.
1) An object becomes charged when the atoms in the object gain or lose
A
neutrons
B
electrons
C
protons
D
all of the above
2) A material through which charges can move easily is called?
A
inductor
B
conductor
C
reductor
D
insulator
3) The buildup of charges on an object is called?
A
an electric force
B
an electric field
C
static electricity
D
an electric charge
4) A material that charges can NOT move easily through is called?
A
insulator
B
conductor
C
reductor
D
inductor
5) Why does a light come on instantly when you flip on a light switch?
A
Electrons move from one end of the wire to the other at the speed of light.
B
Charges flow at the speed of light.
C
An electric field sets up in the wire at nearly the speed of light.
D
All of the above
6) All circuits include...
A
an energy source, a load, and wires
B
a battery, a light bulb, and a switch
C
a battery, wires, and a switch
D
an energy source, a resistor, and a battery
7) A circuit in which all parts are connected in a single loop is called a(n)
A
parallel circuit
B
open load
C
open circuit
D
series circuit
8) Which of the following bulbs would burn the brightest?
A
120 W
B
40 W
C
65 W
D
100 W
9) Lightening is an example of?
A
electrical conduction
B
electric charge
C
eletrical induction
D
electric discharge
10) The rate at which eletrical energy is used to do work is called?
A
electric current
B
static electricity
C
electric power
D
eletrical potential
*select an answer for all questions
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