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Area or volume.
If a certain volume of something (like a beach ball) was the same as a certain amount of water(water the size of the beach ball), but it weighs less, than it will float. An ordinary marble weighs a lot for it's tiny size, and in that case it will CERTAINLY sink in water. Everything that I said about an amount of something weighing a certain amount of g/kgs/tonnes, is called 'Density', like planet Saturn. This planet is the densiest and CAN float on water if it could...
That means that other forms of energy can be converted to heat, and - with some limitations - heat can be converted to other forms of energy. A certain amount of movement energy (for example) always converts to a certain amount of heat. So, it certainly looks as if there is "something" that the different things (for example, movement and heat) have in common. This "something" is now called "energy".
Frequency
It's called current.
the amount of goods produced at a certain time is called productivity
Area or volume.
The price
I
Modulation
Velocity.
If a certain volume of something (like a beach ball) was the same as a certain amount of water(water the size of the beach ball), but it weighs less, than it will float. An ordinary marble weighs a lot for it's tiny size, and in that case it will CERTAINLY sink in water. Everything that I said about an amount of something weighing a certain amount of g/kgs/tonnes, is called 'Density', like planet Saturn. This planet is the densiest and CAN float on water if it could...
Its mass
Modulation
Density= Matter/volume.
density
That means that other forms of energy can be converted to heat, and - with some limitations - heat can be converted to other forms of energy. A certain amount of movement energy (for example) always converts to a certain amount of heat. So, it certainly looks as if there is "something" that the different things (for example, movement and heat) have in common. This "something" is now called "energy".