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24 Cards in this Set
- Front
- Back
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velocity
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refers to speed in a specific direction
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acceleration
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change in velocity over period of time
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gravity
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assuming no wind resistance, accelerates an object released above earths surface at a rate of 9.8 m/sec^2
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horizontal motion
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not accelerated. x subscript used to denote motion along X axis
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Vertical motion
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constantly changing
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Newtons first law of motion
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body at rest will remain at rest, and body in motion will remain in motion, unless acted by an unbalanced force
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newtons second law of motion
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an unbalanced force will cause acceleration and this acceleration is directly proportional to the unbalanced force
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newtons third law of motion
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for every action there must be an equal and opposite reaction
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friction
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force opposes motion and expressed in newtons
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uniform circular motion
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speed/magnitude of velocity is constant, the direction could be changing
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work
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done when force is applied and object moves in direction of the force
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kinetic energy
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energy resulting from the motion of the object
=1/2mv^2 |
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potential energy
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energy the object has because of its position
=mgh |
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momentum
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amount of motion displayed by an object
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simple harmonic motion
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an object attached to a spring which follows Hookes law
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speed
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which wave travels through a medium is determined by the frequency and wavelength of the wave
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frequency
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string vibrates depends on the number of antinodes, wavespeed, and length of the vibrating string
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index of refraction
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ration of the speed of light in a vacuum to the speed of light in a given material
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waves
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as they move from one medium into an optically denser medium it bends to normal
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waves
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as they move from a medium into a optically less dense medium, it bends away from the normal
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real images
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always inverted
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virtual images
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always upright
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Coulombs law
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force of attraction or repulsion is determined by
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flow of current
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determined by voltage available and the resistance of the circuit
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