Voltage Current and Resistance

Voltage is measured in __.

• volts.
• watts.
• coulombs. 

Current has units: 

• kilowatt·hour 
• ampere 
• coulomb 
• volt 

What 'flows' in a wire?

• Protons
• Neutrons
• Atoms
• Electrons

Tags

NGSS.HS-PS2-5

What kind of circuit is this?

• series
• parallel

Which statement is true?

• The light bulb will light up because the circuit is complete.

• The light bulb will light up because the circuit is broken.

• The light bulb will not light up because the circuit is complete.

• The light bulb will not light up because the circuit is open.

If the current through a circuit is 2 A and the resistance of a light bulb in the circuit is 10 Ohms, what is the voltage difference across the light bulb?

• 5 V
• 12 V
• 0.2 V
• 20 V

Which equation can be used to calculate the resistance R of a resistor?

• V = I / R

• I = V x R

• R = V x I

• V = I x R

Which symbols are used for the units of current and of resistance?

• A

• B

• C

• D

What is the current in an electric circuit?

• The energy of the circuit

• The flow of electrons in the circuit

• The power of the circuit

Where in an electric circuit do you find electrons?

• In the lightbulb only

• In the battery only

• Moving from the battery, through the wires to each component and back to the battery