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# Science Ch. 23 sec.3

### STUDY CRAP

Which of the following forces opposes motion between two surfaces that are touching? friction
When a rollercoaster moves, which of the following helps to overcome friction? energy
Which of the following causes some of the potential energy of a rollercoaster to be converted to thermal energy? friction
Name two locations where there is friction on a rollercoaster. At the top of the first hill and between the car's wheels
On a rollercoaster, where is the potential energy the greatest? At the top of the first hill
The kinetic energy at the bottom of the first hill on a rollercoaster is less than the ______ energy at the top of the hill. potential
When a group of objects transfer energy only to each other, a(n) ______ is created. closed
On a rollercoaster, some mechanical energy is always converted into______ energy thermal
What 3 types of energy from a rollercoaster are added together to equal the total amount of original potential energy? Thermal energy, kinetic energy, and sound energy
The rule that energy cannot be created or destroyed is explained by the Law of Conservation of energy
The toal amount of ______ in a closed system is always the same regardless of how many conversions take place. energy
In a light bulb, some energy is converted to ______ energy, making the bulb feel warm thermal
Any time energy is converted into another form of energy
Created by: anime101