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WorksheetsCurrent Electricity and Magnetism
Total questions: 25
Worksheet time: 25mins
A material that allows the free flow of electric charges.
Conductor
Insulator
Semiconductor
What is a circuit?
The buildup of electric charges
A complete, closed path through which electric charges flow
Opposition to the flow of charge
Electric potential
The SI Unit of electric current is the ----------
Ampere
Volt
coulumb
electricity
1 ampere = 1 coulumb per -------------
Minute
Second
Hour
time
(a) is the flow of an electric charge through a conductor
Electrical Current
Static Electricity
Magnetism
Conductors
Electrons always travel from (a) objects to (b) objects.
negative
positive
neutral
(a) is the best electrical conductor
Copper Penny
Plastic Tubing
Glass Rod
Cotton String
An object through which electrons and heat can easily flow is called a(n) (a) ; these tend to be (b) .
conductor
metals
nonmetals
insulator
semiconductor
metalloids
A(n) (a) has a negative charge. A(n) (b) has a positive charge, and a(n) (c) has a neutral charge.
electron
proton
neutron
AC
DC
conductor
insulator
current
voltage
(a) = particles in the atom that have no charge
(b) = circuit that has more than one pathway for current to travel through
(c) = temporary magnet made by placing a piece of iron inside a current carrying coil of wire
neutrons
parallel
electromagnet
electrons
protons
series
ferromagnet
The SI Unit of electric Potential is the -------------
Volt
Ampere
Current
Coulumb
Three electric cells of potential difference 1.5 V each have been connected as a battery. The potential difference of the battery will be ---------------V
3.5
4.5
6.5
4.00
An electric current flowing in a wire creates ------------- around the wire
electric
Potential
Magnetism
electromagnetism
What does an iron nail wrapped with copper wire and attached to a battery make?
metal magnet
permanent magnet
electromagent
compass
The SI unit of electric charge is the -----------
Volt
Ampere
Coulomb
meter
How will these charges interact?
Repel
Attract
No interaction
What kind of charge is this?
Positive charge
Negative charge
Neutral charge
How will these charges interact?
Repel
Attract
No interaction
How will these charges interact?
Repel
Attract
No interaction
A(n) ______________________________ is an instrument used to detect the presence of an electric charge.
scale
van de graaff generator
electroscope
Which of these forces works only by combining electric and magnetic forces?
Magnetic
Electric
Electromagnetism
This force occurs when there is an attractive and repulsive force between two poles.
Magnetic
Electric
Electromagnetism
In a magnet the opposite poles will ___________.
attract
repel
What makes an electromagnet stronger?
greater number of loops
smaller number of loops
decreasing the current
decreasing the voltage
Current Electricity and Magnetism
A) A device that stores electrical energy in an electric field
B) A device that converts electrical energy into mechanical energy
C) A device that measures the current in a circuit
D) A device that converts mechanical energy into electrical energy
