Question

1. students are investigating the static electrical forces between two different sets of charged pith (styrofoam) balls. what are the possible electric charges on the unlabeled pith balls in the diagram that result in attraction or repulsion of the pith balls? a. the pith ball in diagram a is neutral and the pith ball in diagram b is negative. b. the pith ball in diagram a is neutral and the pith ball in diagram b is negative. c. the pith ball in diagram a is positive and the pith ball in diagram b is negative. d. the pith ball in diagram a is negative and the pith ball in diagram b is positive. 14. the law of universal gravitation states that both mass and distance of objects affect the gravitational force between them. gravitational force increases as the mass of the objects increase. gravitational force decreases as distance between the objects increases. why are these statements considered scientific law, and not scientific theory? a. these statements predict what will happen under certain conditions. b. these statements involve claims made by an individual without evidence. c. these statements tell what happens under certain conditions in the natural world. d. these statements are well - supported and widely accepted explanations of nature.

Explanation:

Question 13

Recall the rules of electric - charge interactions. Opposite charges attract and like charges repel, and a charged object can attract a neutral object. In diagram A, the charged ball and the unlabeled ball are attracted, so the unlabeled ball could be neutral or have an opposite charge. In diagram B, the charged ball and the unlabeled ball are repelled, so they must have the same charge. Since the labeled balls are positive, the unlabeled ball in A could be neutral and the unlabeled ball in B must be positive. Option A correctly states that the pith ball in diagram A is neutral and the pith ball in diagram B is positive.

A scientific law describes a natural phenomenon and tells what happens under certain conditions in the natural world. A scientific theory is a well - supported and widely accepted explanation of nature. The law of universal gravitation describes the relationship between gravitational force, mass, and distance, telling what happens in the natural world regarding gravitational interactions.

Answer:

A. The pith ball in diagram A is neutral and the pith ball in diagram B is positive.

Question 14