Task 4. Choose the correct answer. 1. What is Special Relativity?

1. What is Special Relativity?

a) a theory of the structure

b) a theory of the structure, space

c) a theory of the structure of spacetime

2. What are the consequences of Special Relativity?

a) relativity of simultaneity, time dilation, length contraction

b) mass–energy equivalence, relativity of simultaneity, maximum speed

c) relativity of simultaneity, time dilation, length contraction, mass–energy equivalence, maximum speed is finite

3. What is General Relativity?

a) a theory of gravitation

b) a theory of the structure of spacetime

c) a theory of motion

4. What are the consequences of General Relativity?

a) gravitational time dilation

b) frame-dragging

c) both

5. What is gravitational time dilation?

a) Clocks run faster in deeper gravitational wells

b) Clocks run more slowly in deeper gravitational wells

c) Clocks stops in deeper gravitational wells

Task 5. Choose the main idea of the text «The Theory of Relativity».

1. The Theory of Relativity encompasses two theories of Albert Einstein: Special Relativity and General Relativity.

2. Consequences of Special Relativity and General Relativity are very important.

3. Special Relativity is based on two postulates which are contradictory in classical mechanics.

Task 6. Read the story «Einstein Vacation to Mexico».