chemical energy and its converted to kinetic energy
13J energy is stored in petrol,
Petrol is potencial energy
Petrol is a fossil fuel made from crude oil and burning fossil fuels produce energy so yes burning petrol does release energy.
No, but it contains energy.
Chemical energy.
When doing a comparison to petrol for math coursework you could compare the cost of petrol energy to the cost of electrical energy. For instance, camparing operating cost of a vehicle that runs on petrol verses a vehicle that runs on electric energy.
Standard petrol has an energy content of approx. 9.67kWh/liter (34.8MJ/liter)
yes
Potential.
yes
yes
yes