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26 Cards in this Set
- Front
- Back
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Physical Quantity |
Quantity is anything that can be measured |
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Fundamental Quantities |
fundamental quantities: |
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Base Quantity: length (l) |
S.I. Unit- metre (m) |
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Base Quantity: time (t) |
S.I. Unit- second (s) |
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Base Quantity: mass (m) |
S.I. Unit- kilogram (kg) |
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Base Quantity: temperature (T) |
S.I. Unit- kelvin (K) |
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Base Quantity: current (I) |
S.I. Unit- ampere (A) |
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Force(F) |
Newton N |
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Derived Quantities |
A derived quantity is found from 2 or more other quantities either by product or division. |
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Area (A) |
Defining Equation: A=1×1 S.I. Unit from defining equation: m² |
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Density (p) |
Defining Equation: p=m/VS.I. Unit from defining equation: kg m‐³ |
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Derived Quantities |
derived quantities: |
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Acceleration (a) |
Defining Equation: a=v/tS.I. Unit from defining equation: m s-² |
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Volume (V) |
Defining Equation: V=1x1x1S.I. Unit from defining equation: m³ |
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Force(F) |
Defining Equation: F=maS.I. Unit from defining equation: kg m s‐² Special Name and Symbol for S.I. Unit: Newton (N) |
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Speed or Velocity (v) |
Defining Equation: v=x/tS.I. Unit from defining equation: m s‐¹ |
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Pressure (P) |
P= F/A= N/m² =Nm‐² |
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Time |
Instruments used: Watch, sundial, hourglass |
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Temperature |
Instruments used: Thermometers |
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Force |
Instruments used: Newton meter, spring balance |
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Voltage |
Instruments used: Voltmeter |
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Mass |
Instruments used: Triple beam balance, scale |
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Current |
Instruments used: Ammeter |
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Measuring instruments |
Summary: |
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Length |
Instruments used: Tape measure, ruler, vernier caliper, micrometer |
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Pressure |
Instruments used: Pressure Gauges |
