Energy transformation, transfer Flashcards
1
Q
What is the law of conservation energy?
A
ENERGY cannot be made of nothing and ENERGY cannot be destroyed
2
Q
What is energy transfer?
A
Energy movement from one object to another.
3
Q
What is energy transformation?
A
Energy type changes to another energy type
4
Q
What are some examples of energy transfer?
A
- heat transferred from flame to pot to water (the type stays the same as it is heat)
- Kinetic energy of wind o kinetic energy of wind mill
5
Q
Some examples of energy transformation?
A
- Ball rolling down the hill (goes from Gravitational potential → kinetic energy)
- Firing arrow from the bow (goes from Elastic potential → kinetic)
- driving a car (goes from chemical potential → kinetic → sound → heat)
6
Q
What is energy efficiency?
A
Is how much energy is turning into a useful form and or The use of less energy to perform the same task and get the same result.
7
Q
The energy efficiency equation?
A
energy useful
——————– x 100
energy input
