I, V, & R DC Circuits

How do you calculate resistance?

• Divide voltage by current

• Divide charge by current

• Multiply current by voltage

• Multiply voltage and current

What is the resistance if the voltage is 10V and the current is 2A?

• 20 Ω

• 5 Ω

• 12 Ω

• 8 Ω

What are the units for resistance?

• Ohms (Ω)

• Voltage (V)

• Amps (A)

• Charge (C)

To complete a circuit the switch must be

• unattached
• open
• closed

Which of these objects is an insulator?

• Copper Wire
• Paper Clip
• Steel Pole
• Rubber Gloves

An object through which electrons can easily flow is called a(n) ___________.

• Conductor
• Insulator

Tags

NGSS.HS-PS2-5

Electricity is the flow of _________.

• Protons
• Neutrons
• Electrons

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

A current of 5.0 A flows in a resistor for 25 s. How much charge has passed through the resistor in this time?

• 125 C

• 5.0 C

• 0.20 C

• 5.0 A

What is this symbol called?

• A. Bulb

• B. Resistor

• C. Battery

• D. Voltage

What is this symbol?

• A. Ammeter

• B. Resistor

• C. Battery

• D. Voltage