Please help me check these 10 multiple choice questions about physics (black hol

Question

Please help me check these 10 multiple choice questions about physics (black hole class).Sorry that there are 10 questions so I try me best to answer these questions. You only need to tell me whether is correct or incorrect. Thank you very much!

Question 1 (2 points) Newton's theory of gravity provides an excellent approximation to the motions of the planets around the Sun. True O False Save Question 2 (2 points) Gravity acts instantaneously and across arbitrarily large distances according to Newton's law of gravity. True O False Save Question 3 (2 points) One can determine the correct "size" of a black hole if he or she applies incorrect, Newtonian ideas to the concept of particles of light escaping from a massive object. True O False Save Question 4 (2 points) The special theory of relativity states that O the speed of light is the same in all inertial frames O lengths of moving objects are contracted according to stationary observers. O absolute motion does not exist All of the above.

Explanation / Answer

Question 3

I think question 3 response should be false.

Question 8

STR is applicable to objects/frames moving with a constant velocity and where the gravity effects are neglected. So

i think saying that is only to objects moving with the velocity of c is not correct. Please think about this.

Question 10

I am absolutely sure about option (b). If you are sure also about (a) then go ahead.

I think the rest are fine. Best.

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