Vocabulary
This is the attractive force between all objects in the universe.
These objects in the universe have gravity.
As the mass increases, the Force of Gravity _______. This is a _________ relationship.
On the moon, the strength of gravity is 0.37 lbs/kg. A 15 kg boulder on the moon would weigh:
A measure of the amount of matter in an object.
Why does the Earth have more gravity than our moon?
Because the Earth has more mass. More mass = more gravity.
As the distance increases, the force of gravity ________. This is a(n) __________ relationship.
What is decreases, indirect/inverse?
On Earth, the strength of gravity is 2.2 lbs/kg. A 15 kg boulder on Earth would weigh:
A measure of the gravitational force exerted on an object.
Would you have more mass on the Earth or floating in space?
Your mass is the same anywhere you are in the universe.
Earth and the other planets closest to the Sun are made mostly of _______.
Gravity is always a pushing/pulling force. (Pick one)
Who developed the mathematical law of gravitation that allows us to measure gravity?
A large body in space that orbits a star and does not produce light on its own
What two properties determine the strength of gravity?
Why do astronauts bounce and appear to float on the moon as they walk?
Gravity is weaker on the moon.
In what way does the moon's gravity most affect the earth?
Through changing the tides.
How might your mass change over time?
When you grow, your mass increases because your body takes up more space.
Provide an example of how weight and mass are different. Explain your answer.
If you went to the moon, your mass wouldn't change, but your weight would. Weight depends on gravity, and since the moon is a smaller mass than Earth, it has less gravity. You would weigh less on the moon, but your mass (number of atoms) would be the same.
The show-stopping song of the hit Broadway musical, Wicked.