Question

use the pictures of four electrically charged items to answer the following question.
balloon 1 has positive charges
sheet 1 has negative charges
balloon 2 has negative charges
sheet 2 has positive charges

If a teacher rubs a glass rod with a piece of silk, giving the rod a positive charge, which of the items will the rod attract?

(1 point)
Responses

Balloon 1, only
Balloon 1, only

Plastic sheet 2, only
Plastic sheet 2, only

Balloon 1 and Plastic sheet 2
Balloon 1 and Plastic sheet 2

Balloon 2 and Plastic sheet 1

Answer 1

When the glass rod is rubbed with silk, it gains a positive charge. According to the principles of electrostatics, objects with opposite charges attract each other.

In your scenario:

- Balloon 1 has positive charges (will not be attracted)
- Sheet 1 has negative charges (will be attracted)
- Balloon 2 has negative charges (will be attracted)
- Sheet 2 has positive charges (will not be attracted)

Since the glass rod has a positive charge, it will attract items with negative charges, specifically Sheet 1 and Balloon 2.

However, since those options are not listed as a choice, let's evaluate again based on the choices provided:

- "Balloon 1, only" - does not attract (both positive)
- "Plastic Sheet 2, only" - does not attract (both positive)
- "Balloon 1 and Plastic Sheet 2" - does not attract (both positive)
- "Balloon 2 and Plastic Sheet 1" - Balloon 2 attracts (negative) and Plastic Sheet 1 attracts (negative).

Therefore, the correct response considering that the teacher rubbed the glass rod giving it a positive charge, and the options presented would be:

**Balloon 2 and Plastic Sheet 1**.