Scalars, Vectors and types of force
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Last updated 6:46 PM on 4/29/25
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12 Terms
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Scalar quantity
A quantity that has a magnitude (size) only
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Examples of scalar quantities
Speed, temperature, mass, energy, distance, density
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Vector quantity
A quantity that has a magnitude and an associated direction
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Examples of vector quantities
Velocity, force, displacement, acceleration, momentum
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Representing vector quantities
Vector are represented by an arrow to indicate its size and direction
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Contact forces
Forces that act between two objects that are physically touching each other
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Examples of contact forces
friction, air resistance, tension, normal contact (reaction) force
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Non-contact forces
Forces that act between two objects that are not physically touching each other
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Examples of non-contact forces
gravitational force, electrostatic force and magnetic force
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Resultant force
A single force that has the same effect as the original forces on an object acting together
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Components of a force
A single force can be resolved into two components acting at right angles to each other and have the same effect as the single force
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Free body diagram
A diagram showing all the forces acting on an object
Note 
Flashcards (129)