Potential energy is directly related to the height of an object. Point 1 is higher than point 4, so the potential energy is greater at point 1.
<u>Answer:</u>
Cheryl, Heather and Keaton all are correct.
<u>Explanation:</u>
Everything around you is made of matter and matter is anything that has mass and occupies space or in other words, anything which has volume is called matter.
Here, in the given example, Cheryl, Heather and Keaton all are correct because the mug, the hot chocolate which is inside the mug and the steam coming out of it, all have mass. Therefore, all are correct except for Mikayla.
The answer is attached. Also, you should know that the unit for acceleration is m/s2 and for velocity it is m/s.