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Forces and Newton's Laws
Forces and Newton's Laws
KEY KNOWLEDGE
apply Newton’s three laws of motion to a body on which forces act: a = Fnet / m, F A on B = -F B on A
OUTCOME
By the end of this lesson you will have a sound understanding of Newton's 3 laws of motion and how to apply them to complex situations.
Newton's First Law
Newton's First Law
An object at rest remains at rest, or if in motion, remains in motion at a constant velocity unless acted on by a net external force.
Newton's Second Law
Newton's Second Law
The acceleration of an object is determined by the sum of the forces acting on it over its mass.
Newton's Third Law
Newton's Third Law
If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A.
Walter Lewin's MIT Physics 101 Three Laws Lesson
Walter Lewin's MIT Physics 101 Three Laws Lesson
Activities
Activities
Explain
Explain
Use a diagram to explain the terms force due to gravity, friction and normal force
There is a book on a table. Why doesn't the book fall?
What are the two key ways in which you can use Newton's First Law?
In the context of forces, what is meant by the term Equilibrium?
Practical
Practical
Questions
Questions
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