Units Of Potential Energy Math
How much potential energy does it have.
Units of potential energy math. The unit for energy in the international system of units si is the joule which has the symbol j. The basic unit of energy and work is the joule j. 1 joule is the work done by 1 newton moving 1 meter 1 j 1 n 1 m the joule has the units n m or kg m2 s2 because a newton is kg m s 2. Please understand that the si unit for potential energy is the same as the si unit for all energy the joule.
Ignoring air resistance which is small for this little drop anyway that pe gets converted into ke. M h g where. 9th 11th. Potential and kinetic energy math practice draft.
Of course the easiest way to calculate the value of potential energy is to use this potential energy calculator. Pe 0 98 kg m 2 s 2. Swap sides and rearrange. V 2 2 ke m.
But if you want to perform the calculation manually you can use the potential energy formula. M pe g x h acceleration of gravity. Pe 0 1 kg 9 8 m s 2 1 m. Pe m g h.
Pe m x g x h mass. M v 2 ke. You can also call this an online joules calculator because the that s the unit of measurement you ll get for the final value. 1 2mv 2.
Potential and kinetic energy math practice draft. G pe m x h height. At 1 m above the ground it s potential energy is. The term potential energy was introduced by the 19th century scottish engineer and physicist william rankine although it has links to greek philosopher aristotle s concept of potentiality.
Please consider the equation for kinetic energy. The joule in si base units is defined as. A 4 kg rock is sitting 5 m above the ground. 9th 11th grade.
Ke m v 2. Thus the general formula is ep mgh where ep refers to potential energy m refers to mass g equals gravity and h equals height. Potential energy is associated with forces that act on a. H pe m x g where m mass g acceleration of gravity h height gravitational acceleration of the earth is 9 8 m sec2.
J kg m2 s2.