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Apply: changes in energy

NGSS.MS: MS‑PS3‑5, MS‑PS3.B.1, MS‑PS3.B, MS‑PS3.C.1, MS‑PS3.C


Emilia is on a swing after school as shown below. Positions A, B, and C are different locations along her path. Assume that the swing has no friction.
A child is on a swing. She is shown in three different positions. Position A is the highest on the left. Position B is the lowest on her path, hanging straight down from the top of the swing set. Position C is the highest to the right and is at the same height as position A.
Which statement describes how Emilia’s energy changes as she swings from point A to point B?
Choose 1 answer: