MOD Electrical Energy Quiz

How much resistance a material, such as metal or rubber, provides to current is dependent on several factors. Which of the following affects the amount of resistance of a material? Select all that apply.

• Length of material

• Width of material

• Type of material

What is the definition of resistance?

• Measure of how easy or hard it is for electrons to flow through a wire

• Rate at which electrons through a wire

What is the definition of current?

• Amount of pressure or push applied to electrons to make them move

• Rate at which electrons flow in a wire

What is the definition of Voltage?

• Amount of pressure or push applied to electrons to make them move

• Measure of how easy or hard it is for elections to flow through a wire.

What are the units of Voltage?

• Volts

• Amps

• Ohms

What are the units for Current?

• Volts

• Amps

• Ohms

What are the units for Resistance?

• Volts

• Amps

• Ohms

How could I increase the current in the basic circuit shown below?

• Use an insulator instead of a conductor

• Add another battery to the circuit

• Use a battery with a lower voltage

The circuit below uses a 9 volt battery and has a 100 ohms resistor attached. How much electric current is in the circuit?

• 0.09 amps

• 900 amps

• 0.09 ohms

Using the Ohm's Law formula, indicate what would happen in a circuit to the current if you increase the length of the wire, current (I)

• decreases

• stays the same

• increases