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31 Cards in this Set

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