Gravity and Motion Word Scramble
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Term | Definition |
Force | A force is a push or pull |
Gravity | Force that attracts objects toward each other. It pulls the moon toward Earth, keeping it in orbit. |
The strength of the force of gravity between two objects depends on what two factors? | the masses of the object and the distance between them |
Law of universal gravitation | states that every object in the universe attracts every other object. |
Mass | is the amount of matter in an object. |
Weight | the measure of force of gravity on an object |
How does mass affect the force of gravity? | the more mass an object has, the greater the force it can exert |
How does distance affect the force of gravity? | the greater the distance between two objects, the smaller the force of gravity |
Inertia | The tendency of an object to resist a change in motion. |
Newton's first law of motion | states that an object at rest will stay at rest and an object in motion will stay in motion with a constant speed and direction unless acted on by a force. |
Why do the Earth and moon remain in orbit? | Newton concluded that inertia and gravity combine to keep Earth in orbit around the sun and the moon in orbit around Earth. |
What keeps Earth from falling into the sun? | The answer is inertia |
What orbits another object and can be natural or man made? | A satellite |
During the Apollo 15 free fall experiment, which object fell at the same rate as the hammer? | A feather because there in no air resistant on the moon. |
What was the purpose of the Apollo 15 free fall experiment? | To test whether the objects would fall at the same rate of speed. |
Created by:
ldillon
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