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14 Cards in this Set
- Front
- Back
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Newton's First Law
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First law: The velocity of a body remains constant unless the body is acted upon by an external force.
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Newton's Second Law
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Second law: The acceleration a of a body is parallel and directly proportional to the net force F and inversely proportional to the mass m, i.e., F = ma.
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Newton's Third Law
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Third law: The mutual forces of action and reaction between two bodies are equal, opposite and collinear.
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Pythagorean theorem
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a^2 + b^2 = c^2
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Rule 1 for conversion
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Always Multiply by one!
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Quadratic equation
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The Quadratic formula for determining the roots of ax^2 + bx +c = 0 is x = (-b ± sqrt (b^2 - 4ac))/2a
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Kinetic Energy Formula
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E = (1/2) mv^2
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gravitational potential energy near Earth
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= mgh (h is elevation)
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momentum
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p = mv
is a separately conserved quantity different from energy |
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refraction
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a change in the direction of a wave due to a change in its speed. sin theta1/sin theta2 = v1/v2 = n2/n1
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Zeroth law of thermodynamics
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Two systems that are each in thermal equilibrium with a third system are in thermal equilibrium with each other.
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Calorie
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is defined as the amount of heat required to raise the temperature of 1 gram of water from 14.5 deg Celsius to 15.5 deg Celsius
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Specific heat capacity
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The amount of heat Q needed for a certain temperature change is proportional to the temperature change and to the mass of substance being heated; that is, Q=mc(Tf-Ti)
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The SI unit of specific heat capacity is
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the joule per kilogram per kelvin [J/(kg*K)] Also 1K=1deg Celsius.
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