As the distance between the objects increases the magnetic force of attraction decreases. Having read the above passage, choose the right answer to the following question (choices are increases or decreases. ): Lisa is hitting a tennis ball against the wall. As the tennis ball bounces away from the wall and towards her, the magnetic force of attraction between the wall and the ball increases or decreases.?
decreases.

(Question)
Bases have pH values above 7. The higher the pH value, the more strongly basic the substance. Having read the above passage, choose the right answer to the following question (choices are acidic or basic ): If we tested a substance and the number was high on a pH test then the item is acidic or basic?
(Answer)
basic

Ques: Acids have pH values below 7. The lower the pH value, the more strongly acidic the substance. Having read the above passage, choose the right answer to the following question (choices are lower or higher ): A pH value of 6 has a lower or higher acidity level than a pH value of 8?
Ans: higher

(Q).
The farther the object is stretched or compressed, the greater its elastic potential energy is. Having read the above passage, choose the right answer to the following question (choices are decreases or increases ): Stretching a rubber band out decreases or increases its elastic potential energy?
(A).
increases

Ques:The faster the clicks of a Geiger counter occur, the higher the level of radiation. Having read the above passage, choose the right answer to the following question (choices are high or low ): Evan crawls through the toxic waste dump. His Geiger counter clicks very rapidly. The levels of radiation are likely high or low?

Ans:high

Question: Because these isotopes decay more slowly, they can be used to date much older specimens. Having read the above passage, choose the right answer to the following question (choices are less useful isotope? or more useful isotope ): For dating the age of a fossil, and compared to the isotope Carbon 14 with its 5730 year half-life, would Francium with a 22 minute half-life be a less useful isotope? or more useful isotope?
Answer:
less useful isotope?