1. Force is anything that acts on a body to change its rate of acceleration or alter its momentum and is measured by Newtons. For example, the force generated by the motor of an electrical scooter can make it speed up and slow down.
Energy is the capacity for doing work, in other words, the capacity move an object against an opposing force. There are several forms of energy: kinetic energy is embodied by a moving object, potential energy refers to an object suspended in a gravitational field, and radiant electromagnetic energy is carried by photons. Energy is measured in joules.
Put simply, power is the rate at which energy is supplied or which work is done. The SI unit of power is the watt (equal to one joule per second).
2. (This question is a bit tougher for me and I haven't been able to find the answer online. So my answer is going to put together my previous chemistry knowledge and the information I found.)
The principal greenhouse gases (infrared active gases) are: water vapor, carbon dioxide, methane, nitrous oxide, and ozone. These five gases are compounds, thus proving that something within their chemical bonds allows these gases to trap thermal IR radiation emitted by the Earth’s surface and atmosphere. Carbon dioxide has two powerful double bonds between the carbon and both oxygen molecules. Nitrogen, on the other hand, is an element and alone lacks the energy of covalent bonds that allows the greenhouse gases to absorb infrared light.
Energy is the capacity for doing work, in other words, the capacity move an object against an opposing force. There are several forms of energy: kinetic energy is embodied by a moving object, potential energy refers to an object suspended in a gravitational field, and radiant electromagnetic energy is carried by photons. Energy is measured in joules.
Put simply, power is the rate at which energy is supplied or which work is done. The SI unit of power is the watt (equal to one joule per second).
2. (This question is a bit tougher for me and I haven't been able to find the answer online. So my answer is going to put together my previous chemistry knowledge and the information I found.)
The principal greenhouse gases (infrared active gases) are: water vapor, carbon dioxide, methane, nitrous oxide, and ozone. These five gases are compounds, thus proving that something within their chemical bonds allows these gases to trap thermal IR radiation emitted by the Earth’s surface and atmosphere. Carbon dioxide has two powerful double bonds between the carbon and both oxygen molecules. Nitrogen, on the other hand, is an element and alone lacks the energy of covalent bonds that allows the greenhouse gases to absorb infrared light.
1 comment:
1. good discussion of F,E,P and units
good that you had examples
better to say "change its acceleration" rather than "rate of acceleration"
2. good application of your knowledge of chemistry!
check to see if any non-greenhouse gases have double bonds
be sure to include reference to sources when you aren't using your previous knowledge of science
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