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What did Sir Isaac Newton discover about gravity?
What did Sir Isaac Newton discover about gravity?
Which of Newton's laws states that every object will remain at rest or in uniform motion unless acted upon by an external force?
Which of Newton's laws states that every object will remain at rest or in uniform motion unless acted upon by an external force?
What is the relationship between force, mass, and acceleration according to Newton's second law?
What is the relationship between force, mass, and acceleration according to Newton's second law?
In the context of gravity, what did Newton realize was necessary to change an object's speed or direction of movement?
In the context of gravity, what did Newton realize was necessary to change an object's speed or direction of movement?
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Which term describes the force exerted on an object by gravity when it falls?
Which term describes the force exerted on an object by gravity when it falls?
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How does Newton explain why humans and animals can stay on Earth without being flung off due to its spinning motion?
How does Newton explain why humans and animals can stay on Earth without being flung off due to its spinning motion?
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