Basic elec theory

An electron has a ______________ charge

• Negative

• Positive

• Neutral

• Static

If an atom carries 3 electrons, 4 neutrons, and 2 protons the cumulative charge will be _______

• Negative

• Positive

• Neutral

• Static

Glass, rubber, and plastic are good _____________

• conductors

• insulators

• bumpers

• casings

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-6

This is a measurement of the number of electrons passing through a conductor at a given point.

• Ohm

• Amp

• Volt

• Watt

If two light bulbs are in series and one burns out the filament, what happens?

• it goes out

• it shorts out

• both lights go out

• one light gets bright

If the resistance in a circuit is increased the current will _________

• stop

• increase

• decrease

• flow more

A 240 v circuit has a resistance of 10 ohms. What is the estimated current?

• 24 watts

• 10 amps

• 24 amps

• 12 A

In a parallel circuit the resistance is likely to be fairly ___________

• high

• low

• flat

• obtuse

In order to calculate watts of power ___________________________

• multiply volts x amps

• add volts + amps

• divide volts/amps

• subtract volts - amps

In order to increase electrical magnetism, you could _______________

• stretch out the wire

• make a coil

• cut the wire in bits and lay them side by side

• add insulation to the wire

Tags

NGSS.HS-PS2-5