General Relativity — Quiz

Question 1

Which describes Einstein’s general theory of relativity? Choose five correct answers.

Revolt · Accepted Answer

It is an extension of the special theory of relativity.; It applies to objects in free fall.; It applies to objects in a gravitational field.; It applies to accelerating objects.; It applies to objects in uniform motion.

Question 2

A shining light casts a horizontal beam through a spacecraft. Which two observers would see this beam of light in the exact same way?

Revolt · Accepted Answer

an observer inside the spacecraft while the spacecraft is at rest and an observer inside the spacecraft while the spacecraft is moving at a constant velocity

Question 3

Masses in the universe curve space-time. What does the resulting shape of space-time cause?

Revolt · Accepted Answer

gravity

Question 4

What did both Newton and Einstein believe directly affects gravity?

Revolt · Accepted Answer

mass of objects

Question 5

Which observation have scientists used to support Einstein’s general theory of relativity?

Revolt · Accepted Answer

The orbital path of Mercury around the Sun has changed.

Question 6

Which of these occur as part of gravitational redshift? Choose three correct answers.

Revolt · Accepted Answer

wavelength of light lengthens; light observed on Earth appears more red; frequency of light decreases

Question 7

A scientist obtains images of a particular star, which appears as four separate stars. Which phenomenon causes the star to appear this way?

Revolt · Accepted Answer

gravitational lensing

Question 8

An astronaut compares the time passing on a watch worn while on a mission orbiting Earth with an identical watch on Earth. The astronaut’s watch shows that two hours have passed. What would the watch on Earth show?

Revolt · Accepted Answer

Less than two hours have passed because time passes more slowly in areas with stronger gravitational fields.

Question 9

The behavior of which objects are better explained by Einstein’s general theory of relativity than Newton’s universal law of gravitation?

Revolt · Accepted Answer

objects moving at near the speed of light

Question 10

Which best explains how an object at rest deep in space and far from any massive body behaves compared to an object in free fall in Earth’s gravitational field?

Revolt · Accepted Answer

They behave the same because, according to the principle of equivalence, the laws of physics work the same in all frames of reference.

General Relativity — Quiz Answers

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