EVERYDAY SCIENCE

Detailed explanation-1: -Expert-Verified Answer. In order to negatively charge the ball, Mike should simply rub the ball back and forth on the carpet. The simple justification for this is the fact that electrons should be transferred if an object is to be charged. Rubbing the ball on the carpet would generate friction.

Detailed explanation-2: -Answer and Explanation: When a rubber rod is rubbed with wool, the rod becomes negatively charged and the magnitude of the charge on the wool will be equal to the charge on the rod. The wool becomes positively charged by giving the same amount of negative charge to the rod.

Detailed explanation-3: -The wool becomes positively charged because it gives up electrons to the rubber rod. ANSWER: The wool becomes positively charged because it gives up electrons to the rubber rod.

Detailed explanation-4: -The balloon ends up with extra electrons, making it negatively charged. When the negatively charged balloon approaches a wall, the negative charges in the wall are repelled (or pushed away). This leaves a positive charge on the wallboard at the spot where the balloon touches.

Detailed explanation-5: -When a negative rod is brought near an uncharged metal sphere, the electrons in the sphere are pushed away from the side of the sphere closest the rod and move to the other side of the sphere.