Energy Transformations
This energy transformation occurs when a wireless speaker is charged and then used to play music.
What is electrical energy → chemical energy → sound energy?
A system that allows both matter and energy to enter and leave.
What is an open system?
If a cart does not move, this amount of work is done no matter how long force is applied.
What is 0 joules?
This type of energy is converted into kinetic energy when a person eats carbohydrates and runs a marathon.
What is chemical potential energy?
The type of system best represented by the world’s oceans.
What is an open system?
This formula is used to calculate work when force and distance are known.
What is W = F × D?
During photosynthesis, plants convert this type of energy into chemical energy.
What is light energy?
This type of system allows energy transfer but not matter transfer.
What is a closed system?
Power depends on how quickly this is done.
What is work?
This energy transformation occurs when sunlight is stored in glucose molecules.
What is light energy converted into chemical energy?
Cooking rice in a pot with a lid is an example of this type of system.
What is a closed system?
Increasing these variables will increase the amount of work done on an object.
What is distance and force?
This energy transformation happens when chemical energy in muscles becomes motion while running.
What is chemical energy → kinetic energy?
According to the Law of Conservation of Energy, this type of system can exchange energy but not matter.
What is a closed system?
The total work done stopping a 1000 kg car over 50 meters when deceleration is known.
What is 200,000 joules?