Unfiltered Story #32365

USA | Unfiltered | May 11, 2016

(Learning about gravitational potential energy in physics.)

Teacher: So when the cannonball is over the table, it has gravitational potential energy. When it’s over the floor, it has more. Say I punched a hole through the floor, it will have even more gravitational potential energy. And if there was a hole to the center of the earth, it would have a lot more.

Student: How far is it to the center of the earth?

Teacher: ….Far.

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