You want to give a third-grader a common example that illustrates how much energy a joule is.

Question:

You want to give a third-grader a common example that illustrates how much energy a joule is. Show that a 0. 1$\mathrm{kg}$ ring of keys falling out of your pocket develops about $1 \mathrm{~J}$ of kinetic energy before hitting the ground. Can you think of another example?

Fantastic news! We've Found the answer you've been seeking!