Batteries and Electricity

Which of the following circuits will have the brightest light bulb?

• AC 30 V, 15 Hz

• DC 30 V

• AC 25 V, 60 Hz

• DC 35 V

What two portions of a battery react to produce electrons?

• Anode and Cathode

• Cathode and Electrolyte

• Anode and Electrolyte

• Cathode and Electrons

Which light bulb will flash the most often?

• DC: 5 V

• DC: 10 V

• AC 10 V, 10 Hz

• AC 20 V, 5 Hz

In a rechargeable battery that is half used, what would be the conditions in the battery?

• All of the electrons would be in the anode

• Some of the electrons would be in the cathode and anode

• The electrons would be found in the electrolyte

• All of the electrons would be in the cathode.

Which of the following choices represent the three components of a battery?

• Anode, electrons, and wires

• protons, electrons, and neutrons

• Anode, cathode, and electrolyte

• AC, DC, and Electrons

Which pairing is correct based on type of current and electron movement?

• DC electrons flow from the anode through the circuit and to the cathode

• DC electrons fluctuate back and forth

• AC electrons from from the cathode to the anode

• AC electrons flow from the anode to the cathode

How many chemical reactions take place in a typical battery?

• 1

• 2

• 3

• 4

In a rechargeable battery, what happens when a dead battery is plugged into a charger and electrical outlet?

• The electrons move back to the cathode

• The chemical reactions in the battery reverse and recharge the battery

• The electrons react with the lithium ions

• The electrons react with the electrolyte

What is the main difference between AC current and DC current?

• the electrons in AC current flow completely through the circuit

• the electrons in an AC circuit stay on one stationary place

• the electrons in AC move back and forth, but not through the complete circuit

• electrons are consumed by the circuit in AC but not DC

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

• It stops the flow of electrons when its open

• It slows down the electrons

• It speeds up the electrons

• It stops the flow of electrons when its closed