1. A block was heated by (using 67J) by 17 ˚C, it is known that the specific heat capacity of the block is 6578 J/Kg ˚C, find the mass of the block.

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.