1.Two buckets contain water at 30 oC. One contains 1kg of water and the other contains 2kg of water. State and explain whether the following quantities are the same or different for the water in the two buckets.
.Internal energy
.Temperature
.Average energy of a molecule
2. Briefly explain how a thermal couple can be used to measure a particular temperature of an object.

Alice added sodium chloride to water and stirred the water for several minutes. alice is most likely trying to demonstrate that ionic compounds a. are hard. b. can dissolve. c. are clear. d. can melt.

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue