Question

For Future FLVS student In Physical Science
Assessment 4.01

Answer 1

Question 1

A student blows up a balloon and then places it in a very cold freezer. After a few hours, the balloon has shrunk. Which of the following best explains why the balloon shrunk.

As the balloon gets cooler, the molecules gain energy and move closer together, causing the balloon to shrink.

*(Right Answer)* As the balloon gets cooler, the molecules lose energy and move closer together causing the balloon to shrink.

As the balloon gets cooler, the molecules break apart, decreasing the volume of the gas.

As the balloon absorbs energy, the molecules move more quickly, making the balloon expand.

Answer 2

Question 2

In which of these samples do the molecules most likely have the most kinetic energy?

solid ice at −5°C

ice water at 0°C

liquid water at 98°C

*(Right Answer)* water vapor at 150°C

Answer 3

Question 3

A scientist is studying a sample of matter. The matter has no definite shape or volume, and it can conduct an electric current. The sample is most likely in which of the following states?

solid

liquid

gas

*(Right Answer)* plasma

Answer 4

Ermagurd thank you