There would be smaller tides on Earth. There would be bigger tides on Earth. Objects would weigh more on Earth. Objects would weigh less on Earth.
I gave my students this multiple choice question: The gravitational pull between the Moon and Earth affects conditions here on Earth even though the Moon has about 1/80 the mass and about 1/4 the diameter of Earth. If the Moon was about the same size and mass of Earth, which would most likely occur?

Only one answer is correct among these 4 choices:
- There would be smaller tides on Earth.
- There would be bigger tides on Earth.
- Objects would weigh more on Earth.
- Objects would weigh less on Earth.

Could you tell me which one is correct?

There would be bigger tides on Earth.