Engineering spring final exam review

What is the main difference between series and parallel circuits?

• Series circuits have only one path for electricity to flow, while parallel circuits have multiple paths.

• Series circuits have multiple paths, while parallel circuits have only one path.

• Both have only one path.

• Both have multiple paths.

Tags

NGSS.MS-PS2-3

If any part of a series circuit is broken, what happens?

• The circuit continues to work.

• The circuit fails.

• Only one light turns off.

• Nothing happens.

Ohm's Law states that Current (I) equals Voltage (V) divided by Resistance (R). I = __ / __

• V / R

• R / V

• V x R

• R - V

What is the abbreviation for resistance?

• V

• A

• Ω

• R

Increasing voltage ______ current.

• increases

• decreases

• does not affect

• reverses

How much current does a 12 V battery push through a 3 Ω resistor? V = 12 V, R = 3 Ω, I = ?

(a)  

Current is moving electrons, moving charge. Increasing current causes more electricity to move through a device.

• True

• False

Tags

NGSS.HS-PS2-5

More resistance = ?

• more current

• less current

• no change in current

• more voltage

Voltage is linked to energy: 1 volt of voltage = ___ joule of energy per coulomb of charge.

• 1

• 10

• 0.1

• 100

The units for current is _______; the abbreviation is _______.

• The units for current is amperes; the abbreviation is A.

• The units for current is volts; the abbreviation is V.

• The units for current is ohms; the abbreviation is Ω.

• The units for current is watts; the abbreviation is W.

Tags

NGSS.HS-PS2-5