force notes chap.2 1 slideshare
TRANSCRIPT
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Daily Science
1.What is a force?
2. What is the difference between a balance and
unbalanced force?
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What is a Force?
• A force is described by its strength and by the direction in which it acts.
• A force is either a push or a pull
• A force’s SI unit is called Newton.
• Why is it called a Newton?
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Combining Forces
• What do you think it means when a force is combined?
• A Combination of forces acting on an object is called a net force.
• A net force determines an objects speed and direction.
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When forces act in the same direction the forces can be added together:
5 10 N5
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• When forces act in an opposite direction they also combine a net force.
• If one force is going in one direction and another force in the opposite direction all you do is subtract the forces.
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• Example:
5N 10N = 5N
Forces may even cancel each other out:
5N5N = 0N
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Unbalanced Forces
• When there is a net force acting on an object, the forces are unbalanced.
• This causes the object to move.
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• Example’s of Unbalanced forces:
IndividualForces
Net Force
Individual Forces
Net Force
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Balanced Forces
• Equal forces acting on one object in opposite directions are called balanced forces.
• The object’s motion does not change.
![Page 10: Force notes chap.2 1 slideshare](https://reader036.vdocuments.us/reader036/viewer/2022071701/55b4d6fcbb61ebc82b8b47ef/html5/thumbnails/10.jpg)
Example of a balance force:No Net Force
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Any Questions?