Ohms

What is Resistance?

• The flow of electrons
• Electric potential difference
• A battery
• The ability to reduce the flow of electrons

What is resistance measured in?

• Ω (Ohms)
• V (Volts)
• A (Amps)
• W (Watts)

What is current measured in?

• Ω (Ohms)
• V (Volts)
• A (Amps)
• W (Watts)

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

• 1 Ohm
• 3 Ohms
• 4 Ohms
• 12 Ohms

What is the voltage of a circuit with 4 ohms of resistance and 3 amps of current?

• 12 V

• 21 V

• 4/3 V

• 3/4 V

What is the resistance of a lightbulb that experiences 9 Volts and 3 amps of current?

• 1/3 ohms

• 3 ohms

• 27 ohms

• 9 ohms

What is the unit we use to measure electric current?

• ampere (amp)

• ohm

• volt

• newton

A material that keeps electric charges from flowing through easily is called

• Flash light

• toaster

• an insulator

• series circuit

Charged particles that flow continuously through material is called

• Insulator

• Electric Current

• Flashlight

• closed circuit

Tags

NGSS.HS-PS3-5

If the voltage is 18 volts and the current is 6 amps, what is the resistance?

• 9 ohms

• 12 ohms

• 5 ohms

• 3 ohms