Electric Circuits

What is an electrical circuit?

• a whole bunch of wires

• a broken path that electric charges can flow

• a circuit board

• a complete, unbroken path through which electric charges flow

When a switch is open...

• the circuit is working and gives energy

• the circuit is broken and charges cannot flow

• the circuit is turning lights on

• I don't know...ask Ms. Cednick

What is voltage?

• the power in a machine

• how much electricity is in an object

• the difference in electric potential energy per charge.

• the electric current

Tags

NGSS.MS-PS3-2

What is resistance

• repelling against something

• a STAR WARS reference

• the measure of how difficult current to flow

• how long the wire is

What does the resistance of an object depend on?

• temperature

• mass

• diameter

• material

• current

What is Ohm's Law?

• a time to meditate...ohmmmm.

• a relationship between resistance, current, and voltage

• the relationship between current, voltage and charge

• the relationship between voltage, resistance, and charge

Describe a series circuit.

• a circuit that has multiple branches

• a circuit that has one path

• a circuit that dead ends after a light bulb

What is a parallel circuit?

• a continuous loop

• a circuit with one path

• a circuit with multiple branches for each individual appliance or light

If a toaster produces 12 ohms of resistance in a 120-volt circuit, what is the amount of current in the circuit?

• 10 amps

• 1440 amps

• 0.1 amps

• 1 amp

A 12 Volt car battery pushes charge through the headlight circuit resistance of 10 ohms. How much current is passing through the circuit?

• 120 A

• 1.2 A

• 12 A

• 0.834 A