1.What's energy?

We always use various energy.I do a simple explanation about energy first.

Energy's feature

Energy is namely forceFor that reason energy have various features.I show some energy's features now.

・Energy can change own state.

For example,we change electrical energy to energy of light with a bulb.And portion of this energy change to the thermal energy.

・Total of energy is don't change.

We call this features [rule of keep of energy].

・All energy change to the thermal energy ,last.

For example, a man slide on a slide.Then,his hip become hot.Because,he slide on a slide,when he have location energy.Then between his hip and slide happen friction when he slide on a slide.Accordingly is born thermal energy was cause by this friction.This thing is all action apply.

Kind of energy

Energy can various change .I do a simple explanation about this change's sort.

・Thermal energy

This energy is basic energy.All energy change to the thermal energy ,last.

・Energy of light

Light is a sort of energy.This energy is drawing public attention.Because it have new possibility.

・Electrical energy

This energy management is very easy,therefore it was popularize and it is using to various technology.

The following is dynamically energy.This energy arise was caused by certain. object.

・Energy of move

For example,a box move when a box and a toy car bump into each other.Because a toy car have energy of move then.

・Energy of location

For example, there is a ball in the air.this ball have energy of location is caused by earth's gravity at that time.To sum up,energy of location is power of fall from upper part to under.

We can use all tools,because we can change these energy.

Return