Nextintroduction to energy: mastery testselect the correct answerfossil fuels are formed by the decomposition of dead plants and animals. which flow chart describes the correct energy transformation when a caburns fossil fuels to accelerate? oa. chemical energy - thermal energy mechanical energyob. thermal energymechanical energychemical energyoc. chemical energy - mechanical energythermal energyod. thermal energy - chemical energy -mechanical to ene.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

mass and weight are closely related because mass affects the weight of an object experiencing the effects of gravity. weight is the measure of the force of gravity on an objects's mass, while mass is the measure of how much matter there is in an object.