WorksheetsMagic of Electrons Study Guide Test 1
Total questions: 28
Worksheet time: 14mins
What is an insulator?
a substance that does not readily allow the passage of heat or sound
a material or device that transmits heat, electricity, or sound
What is an conductor?
a substance that does not readily allow the passage of heat or sound
a material or device that transmits heat, electricity, or sound
Check the materials that are insulators:
metals
wood
Check the materials that are insulators:
rubber
water
Check the materials that are conductors:
water
rubber
Check the materials that are insulators:
copper
glass
Check the materials that are conductors:
copper
glass
Check the materials that are insulators:
glass
mercury
Check the materials that are conductors:
metals
wood
Check the materials that are conductors:
glass
gold
The measurement of the force of the movement of electrons in a conductor:
current, measured in amps
voltage, measured in volts
resistance, measured in ohms
The measurement of the amount of flow of electrons traveling through a conductor
current, measured in amps
voltage, measured in volts
resistance, measured in ohms
Electricity in the US is generated at a frequency of:
120 volts
600 watts
5 amps
60 hertz
Batteries use this type of electricity:
stable current
variable current
reverse current
direct current
the mechanical device that produces electricity
outlet
generator
battery
circuit
When you reverse the poles of a battery:
electrons reverse direction
electrons move quicker
electrons slow down
The typical AC voltage in your home is:
120
600
5
60
The outermost rings of electrons in an atom are called:
photons
protons
valence electrons
valence neutrons
What part of the atom is most important to current flow?
photons
protons
electrons
neutrons
Motors convert...
mechanical energy into electrical energy
electrical energy into mechanical energy
electrical energy into physical energy
physical energy into electrical energy
Generators convert...
mechanical energy into electrical energy
electrical energy into mechanical energy
electrical energy into physical energy
physical energy into electrical energy
The opposition to electrons moving through a conductor is called...
resistance
static electricity
valence electrons
direct current
The type of electricity that does not describe the flow of electrons is...
resistance
static electricity
valence electricity
direct current
When we need to increase voltage from a power plant for long distance distribution of electricity we use a...
pop up transformer
charge up transformer
step up transformer
power up transformer
Which type of materials are only good conductors in certain conditions?
semi conductors
metals
insulating conductors
transparent conductors
The number of protons in an atom indicates...
electron number
neutron number
proton number
atomic number
Electricity is defined as...
movement of electrons in an insulator
movement of electrons in a conductor
movement of neutrons in a conductor
movement of protons in a conductor
The simplest form of matter is:
proton
atom
nucleus
element
