COLUMN A

1. It is a force of attraction or gravity between the object and the Earth.
2. He stated that the pull of gravity depends not only on the masses of the two objects.
3. It is a heavenly body that keeps all the planets in orbit with its gravity.
4. It is a person who is specially trained to travel into outer space.
5. It is a unit used to measure mass.

COLUMN B

A. astronaut
B. Isaac Newton
C. kilogram
D. sun
E. weight
F. weightiness​