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Questions and Answers
According to Newton's laws of motion, what happens to a body if no force is acting upon it?
According to Newton's laws of motion, what happens to a body if no force is acting upon it?
What does the net force on a body equal to, according to Newton's laws of motion?
What does the net force on a body equal to, according to Newton's laws of motion?
If two bodies exert forces on each other, what can be said about these forces?
If two bodies exert forces on each other, what can be said about these forces?
What did Newton use his laws of motion to investigate and explain?
What did Newton use his laws of motion to investigate and explain?
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What limitations to Newton's laws have been discovered as objects move at very high speeds, are very massive, or are very small?
What limitations to Newton's laws have been discovered as objects move at very high speeds, are very massive, or are very small?
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Study Notes
Newton's Laws of Motion
- If no force is acting upon a body, it will maintain its state of motion, either remaining at rest or continuing to move with a constant velocity.
Net Force and Newton's Laws
- The net force on a body equals zero when the body is at rest or moving with a constant velocity.
Forces Between Bodies
- When two bodies exert forces on each other, the forces are equal in magnitude and opposite in direction, known as the law of action and reaction.
Applications of Newton's Laws
- Newton used his laws of motion to investigate and explain the motion of celestial bodies, such as planets and comets, and the behavior of fluids and gases.
Limitations of Newton's Laws
- At very high speeds, Newton's laws are limited by the theory of special relativity, which explains how time and space are affected by high-speed motion.
- For very massive objects, Newton's laws are limited by the theory of general relativity, which explains how gravity warps space and time.
- At the atomic and subatomic level, Newton's laws are limited by the principles of quantum mechanics, which describe the behavior of very small objects.
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Description
Test your knowledge of Newton's three laws of motion with this quiz. From inertia to acceleration, these laws govern the behavior of objects in the universe.
