Having trouble deciding on a review question between and or but. The sentence says, "Newton's ideas about motion are called laws, (and, but) Einstein's idea about relativity is called a theory." Thanks.
I would use "but," since you seem to be contrasting these two ideas.
Use "but"
In this case, you need to choose between the conjunctions "and" or "but" to connect the two clauses together.
To determine which conjunction is appropriate, it's helpful to understand the meaning and relationship between the two clauses.
1. If you want to convey that Newton's ideas about motion and Einstein's ideas about relativity are similar or complementary, you can use the conjunction "and." This would indicate that both Newton's laws and Einstein's theory are significant contributions in the field of physics.
Example: "Newton's ideas about motion are called laws, and Einstein's ideas about relativity are called a theory."
2. On the other hand, if you want to emphasize a contrast or contradiction between Newton's and Einstein's ideas, you should use the conjunction "but." This would suggest that there are differences or opposing viewpoints between the two concepts.
Example: "Newton's ideas about motion are called laws, but Einstein's ideas about relativity are called a theory."
Ultimately, the choice depends on the intended meaning or the emphasis you want to convey in your sentence.