The kinetic energy of a moving car is less than the amount of chemical
potential energy that is released when fuel is burned in the engine. Which
statement best explains why this is so?
A. More of the car's energy is transformed into potential energy the
faster it goes.
B. Friction causes some of the energy released by the fuel to be
transformed into thermal energy,
C. Some chemical energy is transformed into potential energy as the
particles in the fuel are rearranged.
D. The force of gravity transforms some kinetic energy into
gravitational potential energy.
Answers: 2
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Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?
Answers: 1
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During cooling, the kinetic energy of the molecules falls. why does this happen? a.the motion of the molecules increases. b. the motion of the molecules slows down. c.the van der waals forces between molecules decrease d. the forces of attraction between the molecules are overcome.
Answers: 2
The kinetic energy of a moving car is less than the amount of chemical
potential energy that is re...
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