physical science spring review electricity and magnetism
TRANSCRIPT
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Physical Science Spring Review
Electricity and Magnetism
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Electric current is produced as ________ flow from a negative area to a positive area.
a.electrons
b.protons
c.photons
d.neutrons
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Electric current is produced as ________ flow from a negative area to a positive area.
a.electrons
b.protons
c.photons
d.neutrons
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Which of the following describes a material thorough which electricity does not flow?
a.metals
b.conductors
c.water
d.insulators
![Page 5: Physical Science Spring Review Electricity and Magnetism](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697bfc21a28abf838ca50f6/html5/thumbnails/5.jpg)
Which of the following describes a material thorough which electricity does not flow?
a.metals
b.conductors
c.water
d.insulators
![Page 6: Physical Science Spring Review Electricity and Magnetism](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697bfc21a28abf838ca50f6/html5/thumbnails/6.jpg)
Which of the following is NOT a good electric insulator?
a.plastic
b.glass
c.paper
d.wood
e.water
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Which of the following is NOT a good electric insulator?
a.plastic
b.glass
c.paper
d.wood
e.water
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What three elements are attracted to magnets?
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What three elements are attracted to magnets?
iron, cobalt, nickel
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Which is NOT a property of a permanent magnet?
a.the atoms are lined up to form domains
b.they attract iron containing object
c.they have a north and south pole
d.they only produce magnetic fields when electric current is running through them
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Which is NOT a property of a permanent magnet?
a.the atoms are lined up to form domains
b.they attract iron containing object
c.they have a north and south pole
d.they only produce magnetic fields when electric current is running through them
![Page 12: Physical Science Spring Review Electricity and Magnetism](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697bfc21a28abf838ca50f6/html5/thumbnails/12.jpg)
When current is run through a copper coil which of the following is produced?
a.mechanical energy
b.electric field
c.magnetic field
d.parallel circuit
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When current is run through a copper coil which of the following is produced?
a.mechanical energy
b.electric field
c.magnetic field
d.parallel circuit
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A circuit breaker or a ________ is a safety device that ensures that will break the circuit if too much current is detected?
a.fuse
b.bulb
c.resistor
d.transformer
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A circuit breaker or a ________ is a safety device that ensures that will break the circuit if too much current is detected?
a.fuse
b.bulb
c.resistor
d.transformer
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What is the equation for Ohms Law?
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What is the equation for Ohms Law?
V = IR
voltage = current x resistance
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An electric heater is connected to a 120 volt line, and it uses 10 amps of current. What is the resistance used by the heater?
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An electric heater is connected to a 120 volt line, and it uses 10 amps of current. What is the resistance used by the heater? V = IR
120 V = 10 A x R
= 12