Electricity CP-1

A parallel circuit has more than one path for electricity to flow

• true

• false

Items that have opposite charges do what?

• attract

• repel

• nothing changes

What type of circuit is pictured?

• series
• parallel

How do you calculate voltage?

• Current X Resistance
• Resistance ÷ Current
• Current ÷ Resistance
• Measure it with a ruler

What is the unit for resistance?

• Volts

• Amperes

• Ohms $\Omega$

What resistance is needed to cause a 20A current flow because of a 100V battery?

• 0.2 $\Omega$

• 2000 $\Omega$

• 120 $\Omega$

• 5 $\Omega$

Lightning is an example of _________.

• static electricity
• current electricity
• watts
• voltage

Which formula represents Ohm's law?

• V=IR

• R=IV

• I=RV

The unit for current is the

• Volt

• Ohm $\Omega$

• Electron

• Amp

Electricity is the flow of _________.

• protons
• neutrons
• electrons