In this section, include a summary of how your Rube Goldberg device design works from start to finish to complete a task. Your Rube Goldberg device design must include at least three energy transformations.

Example 1: The ball will have potential energy at the top of the mountain, when the ball falls the ball will have kinetic energy .

Example 2: When it falls it will have potential energy, then cut the scissors, therefore when it gets to the wood it will have kinetic energy.

Example 3: When it slings shot it will fall into kinetic energy, then stop and stay at potential energy.

Explanation: Example 1: when the video first begin "the ball had potential energy and when the ball swung and hit it that potential energy turned into kinetic energy."

Example 2: As the video moves on and the two pillars crashed down it caused another ball to move, at first the "ball had potential energy because it was not moving then when the ramp went down it caused the ball to gain kinetic energy."

Example 3: At the end of the video the ball push down a row of wooden blocks then lead to it hitting a "bowling ball across the finish line even though the ball moved slowly and not far it still came from potential energy into kinetic energy."

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.