A 45 kg boy runs at a rate of 2.5 m/s and jumps on top of a stationary skateboard that has a mass of 4 kg. After jumping onto the board, the boy and the board travel off together. Assuming that momentum is conserved, what is the final speed of the boy and the board?
Chemical energy is transformed into thermal energy
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The chemical energy - sugars - in your bloodstream are absorbed by the muscle cells in your arms. Your muscles convert this chemical energy into kinetic energy (the energy of motion) in moving the match against the sandpaper surface. The movement of the match against the sandpaper surface causes friction, changing the kinetic energy into heat. The heat of friction in the matchhead causes the phosphorus coating to ignite, converting the heat of friction into heat of combustion, in which the chemical energy in the match is oxidized into radiant heat.
chemical energy
chemical energy to light and heat energy
Chemical energy is transformed into thermal energy
A match burning is an example of chemical energy transitioning to light and heat energy.
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The mechanical energy used to strike a match is transformed first to thermal energy. The thermal energy causes the particles in the match to release stored chemical energy, which is transformed to thermal energy and the electromagnetic energy you see as light.
The chemical energy - sugars - in your bloodstream are absorbed by the muscle cells in your arms. Your muscles convert this chemical energy into kinetic energy (the energy of motion) in moving the match against the sandpaper surface. The movement of the match against the sandpaper surface causes friction, changing the kinetic energy into heat. The heat of friction in the matchhead causes the phosphorus coating to ignite, converting the heat of friction into heat of combustion, in which the chemical energy in the match is oxidized into radiant heat.
chemical energy
chemical energy to light and heat energy
When you strike a match, mechanical energy is used to move the matchstick against the rough striking surface. This generates heat energy due to friction, which ignites the combustible chemicals on the match head. The chemical reaction releases thermal energy and light energy in the form of a flame.
There is a very small amount of kinetic energy in striking the match, but mostly you are releasing chemical potential energy. The match head just requires an increase in temperature to make it burn
When striking a match, the chemical energy stored in the match-head is transformed into heat and light energy.
Chemical energy, stored in the match.
What form of energy has an unlit match?