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Questions and Answers
What do Newton's laws of motion describe?
What do Newton's laws of motion describe?
- The relationship between the temperature of an object and its mass
- The relationship between the motion of an object and the forces acting on it (correct)
- The relationship between the color of an object and its shape
- The relationship between the weight of an object and its speed
According to Newton's first law of motion, what happens to a body unless acted upon by a force?
According to Newton's first law of motion, what happens to a body unless acted upon by a force?
- Moves in a circular path
- Accelerates continuously
- Remains at rest or in motion at a constant speed in a straight line (correct)
- Stops moving immediately
What is the net force on a body equal to?
What is the net force on a body equal to?
- The body's speed divided by its mass
- The body's mass divided by its acceleration
- The body's momentum multiplied by its velocity
- The body's acceleration multiplied by its mass (correct)
According to Newton's third law of motion, what can be said about the forces exerted by two bodies on each other?
According to Newton's third law of motion, what can be said about the forces exerted by two bodies on each other?
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When were Newton's three laws of motion first stated?
When were Newton's three laws of motion first stated?
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Study Notes
Newton's Laws of Motion
- Describe the relationship between a body and the forces acting upon it.
Newton's First Law of Motion
- A body at rest will remain at rest, and a body in motion will continue to move with a constant velocity, unless acted upon by an external force.
Net Force on a Body
- The net force on a body is equal to the mass of the body multiplied by its acceleration (F = ma).
Newton's Third Law of Motion
- When two bodies exert forces on each other, the forces are equal in magnitude and opposite in direction.
History of Newton's Laws
- Newton's three laws of motion were first stated in the late 17th century.
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