Question 1

Question

A) Why is copper wire a better conductor of electricity than carbon fiber? (1 point)
• Copper (Cu) is a metal, and only metals can conduct electricity.
• Copper (Cu) has no loose electrons.
O The electrons in copper (Cu) are loosely bound to the nucleus.
• Carbon (C) does not have any valence electrons.
Question 2
A) Which of the following best describes a direct current? (1 point)
• a stationary electrical charge
• an electrical current that flows in alternating directions back and forth
• an electrical current that flows in one direction
• the flow of electric charges through a conductor
Question 3
A) Which of the following substances would allow an electric current to flow through it easily? (1 point)
• glass ) rubber
• aluminum (Al)
• carbon (C)
Question 4
A) Which of the following statements about electrical charges is true?
(1 point)
• Like charges attract one another.
› Opposite charges attract one another.
• Like charges and opposite charges have no effect on one another.
• Opposite electrical charges repel one another.

Answer 1

Here are the answers to your questions:

Question 1 A) Why is copper wire a better conductor of electricity than carbon fiber?

• Answer: The electrons in copper (Cu) are loosely bound to the nucleus. (This option is not directly stated as correct, but it's the best fit among the choices provided because it implies that copper allows for better conductivity due to its metallic nature and availability of free electrons.)

Question 2 A) Which of the following best describes a direct current?

• Answer: an electrical current that flows in one direction.

Question 3 A) Which of the following substances would allow an electric current to flow through it easily?

• Answer: aluminum (Al).

Question 4 A) Which of the following statements about electrical charges is true?

• Answer: Opposite charges attract one another.