Understanding Electric Concepts

What are the two types of electric charge?

• Positive and Zero

• Positive and Neutral

• Negative and Neutral

• Positive and Negative

What flows through a wire in a circuit?

• Electric current

• Light

• Air

• Water

What is the formula for Ohm's Law?

• R = V - I

• I = V + R

• V = I * R

• V = R / I

What do we call the push that moves electric charge?

• Voltage

• Capacitance

• Resistance

• Current

What is a conductor?

• A conductor is a type of insulator that blocks electric current.

• A conductor is a device that generates electricity.

• A conductor is a material that only absorbs heat without transferring it.

• A conductor is a material that facilitates the flow of electric current or heat.

What is an insulator?

• A device that amplifies electrical signals.

• An insulator is a material that resists the flow of electric current or heat.

• A type of material that generates heat.

• A conductor that enhances electric flow.

In a series circuit, how do the lights behave?

• In a series circuit, lights can be turned on and off individually.

• In a series circuit, the brightness of each light increases when more are added.

• In a series circuit, each light operates independently.

• In a series circuit, if one light goes out, all lights go out.

In a parallel circuit, how do the lights behave?

• The lights will flicker and then turn off.

• In a parallel circuit, if one light goes out, the others stay lit.

• If one light goes out, all lights go out.

• Each light has its own power source and operates independently.

What happens to the current if you add more batteries in series?

• The current remains the same.

• The current increases significantly.

• The current decreases with more batteries.

• The current fluctuates randomly.

What is the unit of electric current?

• ohm

• ampere

• volt

• watt