Question

5. Look at the Energy vs Position graph. Why does the Total Energy (yellow) not change?
A. Because friction and air resistance are negligible
B. Because PE and KE always add up to the same amount no matter what their individual values are
C. Because there's no way to directly measure "Total Energy"
D. Because it makes the graph symmetrical

Answer 1

B. Because PE and KE always add up to the same amount no matter what their individual values are