Correct answer only !

which example has gravitational potential energy?

GPE = mgh

So we are looking for an answer with a height involved with it:

A bicycle moving horizontally has no height above earth's surface (assuming earth's surface is our 0 reference point), so therefore it has no GPE. It would have KE however.

A horse slowing down from a run: no mention of height so therefore no GPE, KE however is present

A beaker sitting on the floor has no KE or GPE.

So an apple about to fall from a tree branch is the best example of GPE because a tree branch usually has a height to it meaning that GPE is present.

v 154.9= 0.9 length length s little over 154.9cm

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.