- Circular Motion, Work and Energy Test was handed back
- Chapter Eight lab was handed back
After everyone received their work, Ms. K went over the answers for the test.
Here is the demonstration presented to the class:
Energy is used to move the rocket away from the earth. When the rocket moves an infinite distance away from the earth, the gravitational potential energy that the rocket possesses is 0.
Newtons Law of Universal Gravitation:
Fg = (GM1M2)/R2
F is proportional to R2
vector quantity
measured in Newtons
Gravitational potential energy:
Egpe = - (GM1M2)/R
E is proportional to 1/R
scalar quantity
measured in joules
After this, we did a transparency sheet, which we handed in. For the rest of the class a Gravitational fields worksheet was handed out. There were also questions on page 273 of the DUCK book... QUaCK QUaccKK!!
NExt scribe is the person who was supposed to be scribe today. =\
1 comment:
Nice picture. Remember that your talking about gravitational potential energy that equals 0 at infinity. On the rocket's journey from earth to infinity, the rocket's GPE is becoming less negative, i.e., getting closer to zero.
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