Question: Answer the question below: Fred found a longitudinal wave. The particles are getting closer together. The amplitude is increasing or decreasing? Assuming that: The closer together the particles in a longitudinal wave are, the greater the amplitude.
Answer: increasing

Question: Answer the question below: Fred fills two buckets with the same amount of water. He puts a melon in one bucket and an orange in the other. In which bucket will the water rise the highest the one with the orange or the one with the melon? Assuming that: So more water is displaced by a bigger body than a smaller one.
Answer: the one with the melon

Question: Answer the question below: A weak electromagnet is receiving much or little current? Assuming that: The more current, the stronger the electromagnet.
Answer:
little