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20 Cards in this Set
- Front
- Back
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segments of physics that deals with objects at rest (static) and objects in motion ( dynamics) |
Mechanics |
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Speed or rate of change of an objects position versus time |
Velocity what is the formula for velocity |
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What is the formula for velocity |
V = D/T |
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How quickly velocity or speed is changing |
Acceleration |
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What is the rate of change of velocity versus time v/t ? |
m/s / s |
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What are newtons three laws of motion? |
Law of inertia, law of force, and law of action/reaction |
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Property of matter that acts to resist a change in motion |
Inertia |
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The? That acts on an object is equal to its mass times acceleration |
Law of force |
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What is the formula for force? |
F= ma and has a unit of measurement of N= kgm/ s2 |
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For every action, there is an equal and opposite reaction |
Law of reaction/reaction |
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The force on an object caused by the downward pull of gravity |
Weight |
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What is the formula for weight? |
Weight = mass x gravity or (wt = mg) [kg x m/s2] [kgm/s2] Units of measurement: N and kgm/s2 |
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Mass x velocity? |
Momentum |
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Work being performed on an object is equal to the force applied to the objects and the distance the object travels |
Work |
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What is the formula for work? |
Work=FD or work= mad Units of measurement: joules and ERG Joules = n x m F D |
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Rate of doing work |
Power |
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What is the formula for power? |
Power = work/time or FD/t or mad/t Units of measurement: watt= J/s |
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Transfer through touch/direct transfer |
Conduction |
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Transfer by heated molecules in gas or a liquid form |
Convection |
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Transfer by omission of infrared radiation which is a reddish glow embedded by hot objects |
Radiation |
