Question: how much energy in a joule?
Answer: One joule represents (approximately): The kinetic energy of a 2 kg mass traveling at 1 m/s. The energy required to lift a medium-sized tomato up 1 metre (3 ft 3 in) (assume the tomato has a mass of approximately 100 grams (3.5 oz)). The energy required to accelerate a 1 kg mass at 1 m⋅s−2 through a distance of 1 m.