Questions 10
Question 1
What does Newton’s Law of Universal Gravitation state?
Answer: Every object in the universe attracts every other object.
Question 2
What two factors determine the strength of the gravitational force between two objects?
Answer: Mass and distance
Question 3
If the distance between two objects doubles, what happens to the gravitational force between them?
Answer: It becomes one-fourth as strong
Question 4
Why do you stay on the ground instead of floating into space?
Answer: Because of Earth’s gravity
Question 5
Which object would have the strongest gravitational pull?
Answer: The Earth
Question 6
What does it mean when we say the Moon is in “perpetual free fall”?
Answer: The Moon is always falling toward Earth but keeps missing it because of its forward motion.
Question 7
When Earth pulls on an apple, what does the apple do?
Answer: The apple pulls back on Earth with an equal force.
Question 8
What happens to your weight if you go to the Moon?
Answer: It decreases because the Moon’s gravity is weaker.
Question 9
If an astronaut's mass is 100 kilograms on Earth, what happens to their mass when they travel to the moon?
Answer: It stays exactly the same.
Question 10
If the mass of one object increases, what happens to the gravitational attraction between it and another object?
Answer: It increases