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31 Cards in this Set
- Front
- Back
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Force equals?
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Mass times acceleration
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A force is a push or pull that causes ?
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A change in shape or in motion
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Mass is the total amount of matter in an object as measured in?
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Grams(SI) or pound-mass (English)
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Weight is the measurementof gravity times mass, gravity on earth is what?
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9.8 meters/second
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Torque is calcuated by...?
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Multiplying the force times
the force appliedto the length of the lever arm |
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When forces in the same direct, the net force is..?
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The sum of two forces
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Density is found by how?
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Dividing mass by volume
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A hydrometer is used to measure?
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Density or specific gravity in liquids
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preasure is measured by dividing ?
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by dividing a unit of force by a unit of area
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Manometers are used to measure?
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Preasure differences
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The two types of of fluids are?
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Hydraulic nd Pneumatic
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Gasses are?
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Compressible
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Preasure increases with depth in a fluid but is?
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independent of volume
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What is Absolute Pressure?
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The measure in reference to a vacuum (zero pressure)
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What is Weight Density?
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The ratio of an object's weight to its volume
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In how many way does does voltage come?
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In 2 which are DC current and AC current
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Voltmeters measure what?
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Voltage difference
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Multimeters measure?
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Voltage, amperage, and resistance in (ohms)
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The positive pole or electrode in a battery is?
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Anode and negative is the cathode
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Electrical circuits contain what?
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Battery or AC power supply,Conductors, and a load, a light bulb circuits may also contain a control element
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How does temperature difference act?
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Acts as a prime mover in thermal systems because heat always moves from warmer region to cooler regions
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What is heat?
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Heat is a form of energy
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Temperature is the measure of?
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The average energy of motion of molecules in a substance
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Thermocouples use what?
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two different metals to measure temperature
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The degree symbol is placed in the front of the F or C when giving temperature?
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The degree symbol is placed after the F or C when giving a temperature difference
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Work equals ?
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Force
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Input work is the?
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Work going into a system,preformed by a human or a motor
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Output work is the?
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the work done by the system
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Efficiency is ?
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Output work divided by the input work,multiplied by 100
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Spring scales are used to measure?
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Input and output force
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The basic English of work is?
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Foot-pound
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