Question

The pictures show four electrically charged items.

image

Select all of the items a glass rod would attract if it were rubbed with a silk cloth, giving it a positive charge.
A.
balloon 1

B.
balloon 2

C.
plastic sheet 1

D.
plastic sheet 2

E.
balloon 1 and balloon 2

F.
plastic sheet 1 and balloon balloon 1

Answers

GPT-4o mini
When a glass rod is rubbed with a silk cloth, it typically becomes positively charged due to the loss of electrons. In this scenario, we need to consider the charges of the other objects in the images.

- **Balloon 1 and Balloon 2**: Balloons are often negatively charged after being rubbed against hair or other materials. A positively charged glass rod would attract negatively charged balloons.

- **Plastic sheet 1 and Plastic sheet 2**: Plastics typically become negatively charged when rubbed. Thus, a positively charged glass rod would also attract these plastic sheets.

Considering the above analysis:

- A glass rod with a positive charge would attract both **balloon 1** and **balloon 2** as well as **plastic sheet 1** and **plastic sheet 2** if they are negatively charged.

Thus, the correct selections would be:

- **A. Balloon 1**
- **B. Balloon 2**
- **C. Plastic sheet 1**
- **D. Plastic sheet 2**

You could also include options involving combinations if the format allows. If required to select specific options in this context, I would recommend choosing:

- **E. Balloon 1 and balloon 2**
- **F. Plastic sheet 1 and balloon 1**

However, the best course would be to check the specific charge status of all items depicted to make the most accurate selection.