7th GRADE SCIENCE : Article 26 : Problems 1 about Potential and kinetic energies. THANKSGIVING MEAL ENERGY SAVING.
* Activity 2.19 : Working out potencial energy. ( 11/20/17 Monday )
2.19.a Potencial energys problems.
To calculate Potential energy you only have to multiply gravity, mass
and hight. Gravitys acceleration you know is 9.8m/s2 , mass must
come in kilograms and hight in meters.
GPE = m.g.h
Now watch these problems and try to do the following doing
the same :
- The following are a few more problems to do :
Problem 1 : LINK FOR PROBLEM 1.
Problem 2 : LINK FOR PROBLEM 2.
Problem 3 : LINK FOR PROBLEM 3.
( 10 points ).
* Activity 2.20 : Several potential energy cases. ( 11/21/17 Tuesday )
2.20.a Potencial energy situations.
Check the PAPER and work out the potential energy in each state
of the movement.
( 10 points ).
2.20.b Check the ways a family has in order to save energy when preparing
the Thanksgiving meal. Do a report in a google docs indicating the
3 most important measures you consider to save energy :
( 5 points ).
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