rad physics final

current that changes direction in the conductor

• indirect current

• weak current

• direct current

• alternating current

electron potential is measured in:

• joules

• ohms

• volts

• coulombs

Tags

NGSS.HS-PS2-4

NGSS.HS-PS2-5

a material that allows electrons to move is:

• a conductor

• an insulator

• an inductor

• a semiconductor

Tags

NGSS.HS-PS2-5

alternating current is produced by:

• a semiconductor

• a capacitor

• a generator

• a battery

in a parallel circuit:

• as more resistors are added total resistance increases

• current flow is equal across its parallel branches

• ohms law does not apply

• voltage is equal across all branches of the circuit

in a series circuit:

• voltage can be added to find total

• current is always constant

• resistance can be added to find total

• all of the above

like poles of a magnet _____ each other and opposite poles _____ each other.

• attract; repel

• repel; attract

• repel; repel

• attract; attract

Tags

NGSS.3-PS2-4

ohm's law is mathematically described as:

• V=IR

• P=IV

• C=Q/V

• none of these

the ability to do work because of a separation of charges is known as:

• electric current

• electrostatics

• potential difference

• electrodynamics

Tags

NGSS.HS-PS3-5

what is the difference between AC and DC

• DC travels back and forth, AC travels in only one direction

• DC has frequency

• AC travels back and forth, DC travels is only one direction

• none of these

Tags

NGSS.HS-PS2-5