I used a lot of energy this weekend. For example, I used the oven’s thermal energy to make some delicious fudgy brownies. This is thermal energy because the brownie’s molecules are vibrating faster due to the oven’s rise in temperature. I also used gravitational energy because as I was playing basketball on my house’s hill, every time I shot the basketball into the hoop, the ball bounced on the floor and started rolling down the hill, which is now motion energy. This is gravitational and motion energy because the ball hit the floor due to gravity, and then starting using that stored energy to roll down the hill, which is now motion energy. Finally, I used elastic energy by pulling a rubber band back and then letting it fly. This is elastic energy because I pulled the rubber band back, creating stored energy when it had a strain on it, and then letting it fly.