NEW
Font size
WorksheetsElectricity
Total questions: 20
Worksheet time: 16mins
A circuit that has two or more separate brances for current is a _____.
parallel circuit
series circuit
circuit diagram
electron circuit
The statement, current is equal to the voltage difference divided by the resistnace, is known as _____.
Ohm's law
Newton's law
Einstein's law
Faraday's Law
A static discharge differs from an electric current in that a static discharge ___.
is a flow of electrons
lasts for only a fraction of a second
results because a force is exerted on the electrons
involves the movement of ions as well as electrons
Electric charge that has accumulated on an object is referred to as
current electricity
circuit electricity
static electricity
cirremt circuit
Resistance is measured in a unit called the ___.
ampree
ohm
volt
coulomb
The rate at which an electrical device converts energy from one form to another is called ___.
electrical energy
electrical resistance
electrical power
voltage regulation
a path that allows only one route for a current is called a ___.
series current
parallel current
parallel circuit
series circuit
Which of the following is the correct relationship among power, current, and voltage?
P=I/V
V=P x I
P=I x V
R = P x I
A television that requires an average of 0.40 ampere of current is operated on a 120-volt service for 5.0 hours. How much energy is used
1.5 kWh
0.15 kWh
0.24 kWh
0.67 kWh
One source of constant electric current is a
switch
transformer
dry cell
coulomb
Lightning is ___.
a very large discharge of static electricity
a buildup of neutrons
a low voltage electric current
harmless
The voltage ___ as current moves through a circuit
remains the same
varies
doubles
increases
A material through which electrons do not move easily is a(n) ___.
transformer
insulator
conductor
fuse
Which of the following is a device designed to open an overloaded circuit and prevent overheating?
transformer
magnet
resistor
circuit breaker
Which of these will repel each other?
Negatively charged balloon and positively charged sphere.
Negatively charged balloon and neutral sphere.
Negatively charged balloon and negatively charged sphere.
Negatively charged balloon and neutral wall.
