Current Electricity and Circuits

Which equation can be rearranged to calculate the the electric current given?

• I = Q ÷ t

• Q = It

• I = Qt

• I = t ÷Q

Which equation can be rearranged to calculate the time?

• t = Q ÷ I

• t = IQ

Quantity of charge can be measured in

• time (s)

• Ampere (A)

• coulombs (C)

• Joule (J)

Calculate the quantity of charge, Q, obtained when a current of 25 amps runs for 1 minute

• Q = 1,800 C

• Q = 1,500 C

• Q = 1000 C

• Q = 3000 C

Q= which of the following situation has the greatest electric current? Where a: is the flow of 3C in 1 s, b: a person walking 8m in 4 s and c: the flow of 6C in 3 s.

• a

• b

• c

• All has same current

What is a circuit?

• A rate of charges flow through a cross-sectional area of a wire

• A closed path that a current can flow along

What is a current?

• A rate of charges flow through a cross-sectional area of a wire

• A closed path that a current can flow along

Tags

NGSS.HS-PS2-5

___________ wires keep electrons on course & protect us from the dangerous flow of electricity. 

• Insulated
• Conducted

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS3-5

The amount of energy used to move one coulomb of electrons through the circuit is its

• current

• voltage

• resistance

An electric current that continually reverses direction over time is known as a(n)

• direct current

• alternating current

• simple current