Question

gravitational potential energy is affected by the objects weight and the objects

height
distance
motion
newton

in the process of fusion, nuclear energy is

absorbed when a nucleus splits.
released when a nucleus splits.
released when nuclei join.
absorbed when nuclei switch places

Explanation:

• For the first question, the formula for gravitational potential energy is \(U = mgh\) (where \(m\) is mass, \(g\) is acceleration due to gravity, and \(h\) is height). Weight \(W=mg\), so gravitational potential energy is affected by weight (\(mg\)) and height (\(h\)).
• For the second question, nuclear fusion is the process where two or more atomic nuclei join (fuse) together to form a heavier nucleus. During this process, a large amount of energy is released. Nuclear fission is when a nucleus splits (and releases energy too, but that's not fusion).

Answer:

• First question: height
• Second question: released when nuclei join