Per recent schools question and answer asked students to express what they feel is the most important element for a student to do to be able to achieve success. Of the many replies, the one that that stood out was practice. Persons who are always successful do not become successful by being born. They work hard and perseverance their lives to succeeding. This is how you can get your goals. in the following paragraphs are one of the answer and question example that you could simply utilize to practice and supercharge your understanding and also give you insights that could guide you to sustain your study in school.
Which two statements are true about a system?
A system is a group of objects analyzed as one unit.
Energy that moves across system boundaries is conserved.
There’s only one way to define the boundaries of a system.
All systems are made by humans.
The first choice i correct. The second is also correct as it should obey the Law of Conservation of mass. The third choice is incorrect. It depends on the nature of the system. For example, for an ideal gas, you can define at least 2 parameters to set the system boundaries. The fourth choice is incorrect, a system can be theoretical or practical. Hence, the answers are the first and second choices.
From the answer and question examples above, hopefully, they may guide the student deal with the question they had been looking for and keep in mind of all things stated in the answer above. You could simply then have a discussion with your classmate and continue the school learning by studying the problem together with each other.