Which statements about potential energy are true? Gaining potential energy is always associated with a force field. A change in position always means that an object gains potential energy. There’s only one kind of potential energy. Some kinds of potential energy are related to electric forces exerted by atoms and molecules.

the answer is a. hope this .

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.

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.