I just took a test in school today. What question was I asked?

Question I was asked: A sound is heard when you pluck a string on a guitar. What will happen to the sound if the same string is plucked harder?


I just took a test in school today. What question was I asked?

Question I was asked: Laura adds 50 mL of boiling water to 100 mL of ice water. If the 150 mL of water is then put into a freezer, at what temperature will the water freeze?


I just took a test in school today. What question was I asked?

Question I was asked:
According to a pH scale, which pH would be the strongest acid?