Electric Usage

Metals such as copper and aluminum are good ______________. 

• insulators

• conductors

• circuits

• charges

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Current is...

• moving protons

• moving electrons

• measured in volts

• measured in ohms

If the current increases it could be because of...

• increasing voltage

• decreasing resistance

• both

When more branches are added to a parallel circuit, ____________________.

• resistance decreases

• voltage increases

• nothing changes

This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?

• 3 Amps

• 192 Amps

• 2 Amps

• 4 Amps

If the voltage stays the same, but the resistance goes up, the current will....

• increase (speed up)

• decrease (slow down)

• stay the same

What is the unit of electric power?

• Watt

• Volt

• Ampere

• Ohm

Which of the following devices is used to measure electric current?

• Voltmeter

• Ammeter

• Ohmmeter

• Thermometer

If the resistance in a circuit is doubled, what happens to the current if the voltage remains constant?

• It doubles

• It halves

• It remains the same

• It becomes zero

What is the formula for calculating electric power?

• All of the above