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| Something that has magnitude (a number) and direction. |
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| Has a magnitude (number) only. |
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| Separation between an object and a referency point. |
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| velocity (or speed) at that instant of time, or, it can be defined as the average velocity (or speed) over an infinitesimally short time interval (average speed and velocity are always the same value) |
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| Distance/Displacement formula: |
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| SI unit for speed or velocity: |
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| Acceleration due to gravity: |
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| Formula for final velocity: |
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| Distance formula with acceleration: |
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| Formula for final velocity squared: |
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| a measure of how an object resists changes in motion; it is a measure of an object’s mass |
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| An object in motion/at rest will remain in motion/at rest unless acted on by an outside force. |
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an unbalanced force (or net force, S) causes an object to accelerate; this acceleration is directly proportional to the unbalanced force and inversely proportional to the object’s mass; called the law of acceleration
a = SF / m or S F = m a |
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| When one object exerts a force on another object, the second object exerts a force on the first object that is equal in magnitude, but opposite in direction; for every action, there is an equal, but opposite reaction; called the law of action-reaction |
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| Universal gravitational constant: |
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Definition
| G = 6.67 x 10-11 N m2/kg2 |
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| Formula for tye force of weight: |
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| Formula for the force of friction: |
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| Formula for parallel force: |
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| Formula for normal force: |
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| Formula for centripetal force: |
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| Formula for vertical velocity: |
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| Formula for horizontal velocity: |
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| The formula for a period: |
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Definition
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| The formula for frequency: |
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| The formula for centripetal acceleration: |
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| the distance from the equilibrium point to the point of greatest displacement |
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| Momentum, definition and formula: |
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Definition
a measure of how hard it is to stop a moving object; it is the product of the object's mass and its velocity; since velocity is a vector, momentum is a vector quantity; symbol is p and SI unit are kg m/sec. The direction of the momentum is the same as that of the velocity.
p= m v |
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| Net force in relation to momentum: |
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| Definition and formula for impulse: |
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Definition
a force exerted over a time interval; symbol is J and SI unit is N sec
J = F t |
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| Impulse in relation to average force, mass and momentum. |
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| Law of Conservation of Momentum: |
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| the momentum of a closed, isolated system is constant; the sum of the initial momentum of the objects is equal to the sum of the final momentum of the objects
Σpi = Σpf |
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| Formulas for work input, work output and efficiency in relation to work: |
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Definition
| Wi = Fappdapp
Wo = Fwh
eff= Wo/Wi |
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| Kinetic and Potential Energy formulas: |
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| Ideal mechanical advantage, mechanical advantage and efficiency in relation to mechanical advantage: |
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| IMA = d / h
MA = Fw/Fapp
eff=MA/IMA |
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| The disorder of particles in a substance. The higher the temperature, the more disorder. |
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| Heat, formula and SI Unit: |
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| Q = m c ΔT
SI Unit: Joule |
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| Latent heat of vaporization: |
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| study of properties of thermal energy
ΔS = Q / T |
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| First law of thermodynamics: |
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| Formula for volume expansion: |
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| P = Fw / A
where a is the surface area
P = ρgh |
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as the velocity of a fluid increases, the pressure exerted by that fluid decreases
on top of an airfoil there is low pressure due to high velocity airflow
on the bottom of an airfoil there is high pressure due to low velocity airflow |
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