The pencil uses Thermal energy
Mechanical pencils themselves do not need any energy in the forms of battery or electricity. However, mechanical pencils do need human energy to work. We need to add lead and push lead out; they do not do this on their own.
Mechanical pencils, like the regular kind of pencils, use graphite.
It is a new type of led the scientist use for pencils now in stead of toxic ones!
You use chemical energy.
they use electrical energy!!
Mechanical pencils themselves do not need any energy in the forms of battery or electricity. However, mechanical pencils do need human energy to work. We need to add lead and push lead out; they do not do this on their own.
Mechanical pencils, like the regular kind of pencils, use graphite.
no
It is a new type of led the scientist use for pencils now in stead of toxic ones!
No, LED (Light Emitting Diode) is not used in pencils. Pencils are traditionally made with graphite or a mixture of graphite and clay for the writing core. LED refers to a type of electronic light source, not suitable for writing instruments like pencils.
you use kinetic energy when you eat
they use electrical energy!!
You use chemical energy.
The type of energy a computer uses is electricty.
mechanical energy
Chemical energy.
thermal energy