Does a parked coaster car at the top of a hill have kinetic energy?
You said the coaster car at the top has kinetic energy because it is about to move. Stored height energy is potential; motion energy comes after the drop.
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1 lesson for “Kinetic and potential energy”
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Is a catalyst used up, or does it just help?
A catalyst helps a reaction finish faster without being used up. Learn the one quantity it lowers, and what it never changes.
Try this lessonWhy are there so few wolves and so many plants?
You said the top of the pyramid holds the most energy because it holds the biggest animals. The pyramid is wide at the bottom, and each level up holds roughly a tenth as much energy.
Try this lessonIs breathing the same as cellular respiration?
You said respiration happens in the lungs. The lungs move air in and out; the useful energy release happens inside every one of your cells.
Try this lessonWhat really travels along an ocean wave?
You said the water rides along with the wave to the beach. Watch a cork bob: it stays, and only the energy travels.
Try this lessonWhich is bigger: sodium or chlorine?
Sodium and chlorine sit next door in the same period, but one is much larger. Decide which, then test the down-a-group trend.
Try this lessonWhich organelle makes the cell's energy?
You said the nucleus makes the cell's energy. The instructions live in the nucleus, but the energy-making has a different address.
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