Electricity and power

If current decreases, what has likely happened to resistance?

• It increased.
• It decreased.
• It stayed the same.

What is the function of a switch in an electric circuit?

• To allow electrons to flow through the circuit
• To allow heat to flow through the circuit
• To allow chemicals to flow through the circuit
• To produce electricity

When voltage goes up, what must also increase if other factors stay the same?

• Resistance
• Insulation
• Current

How is voltage measured?

• Volts
• Ohms
• Amps
• Watts

How is resistance measured?

• Volts
• Amps
• Ohms
• Watts

What is the equation for Electrical Power?

•  $P=I\div V$  

•  $P=V\div I$  

•  $P=I\times V$  

A 12 volt battery supplies voltage to two bulbs. How much voltage would each bulb get?

• 6 volts
• 12 volts

In a series circuit, the current is the same everywhere, it does not change

• True
• False

In a series circuit, the voltage across the battery shares between each bulb

• True
• False

What 'flows' in a wire?

• Protons
• Neutrons
• Atoms
• Electrons