All Junior Cert Science Revised Syllabus posts
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    physics formulas for tomorrow clark13

    i am legitimately going to fail tomorrow. does anyone know the physics formulas you have to know?

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      adamob544

      I feel the pain :P

      the only ones I'm learning are

      pressure = force x area

      speed = distance x time

      power = work / time

      work = force x distance

      I donno why I ever picked physics for lc but ah well

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      JackW

      Speed=Distance/Time

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      gettingalla's

      Speed = Distance (m) / Time Taken (s) Measured in m/s

      Velocity: The distance it travels per unit time in a given direction. Measured in m/s

      Acceleration = Change in velocity (m/s) / Time taken (s) Measured in m/s/s

      Density= Mass (g) / Volume (cm3) Measured g/cm3

      Work= Force (N) x Distance (M) Measured in J(joules)

      Power = Work done (J) / Time taken (s) Measured in Watts

      Weight = Mass (kg) x 10 Measured in N (newtons)

      Moment (of a force) = Force (N) x Perpendicular distance (m) Measured in Nm (newton metres)

      Pressure = Force (N) / Area (m2) Measured in Pa (Pascals), N/m2

      Voltage = Current (A) x Resistance (Ohms) Measured in V (volts)

      Current = Voltage (V) / Resistance (Ohms) Measured in A (amps)

      Resistance = Voltage (V) / Current (A) Measured in Ohms

      Unit of Electricity = kilowatts x hours Measured in kWh (kilowatt hours)

      Hope this helps...best of luck tomorrow :-)

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      Me

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