Question 1
Two balloons are given an electrostatic charge by rubbing them with a wool cloth.
Electrostatic charge
Balloon 1
Balloon 2
Which observation provides evidence of the force that the balloons exert on each other over a distance because of their charge?
The amount of rubbing with the wool cloth can change the amount of charge.
Both Balloon 1 and Balloon 2 are pulled downward by the force of gravity.
Moving Balloon 1 can make Balloon 2 move without the balloons touching.
The charge on the balloons gets weaker over time until there is no charge.