Question

a students model shows that two charged objects repel each other. which test would best check if this model were reliable? observe the same objects at different distances see if magnets can push the objects apart place the objects in water to see if they float shine a flashlight on the objects question 2 why does a model of charged objects need to include an electric field? because electric fields explain how forces act at a distance because electric fields are visible like sparks because electric fields only work in magnets because electric fields make objects glow red

Explanation:

For the first question, observing the same objects at different distances can test the consistency of the repulsion force which is related to the model's reliability. Electric fields explain how charged - objects interact at a distance, which is why they are needed in a model of charged objects for the second question.

Answer:

1. Observe the same objects at different distances
2. Because electric fields explain how forces act at a distance