practice test - part 1-10

Question 1

A(n) _____ cannot be used in astrophotography.

Answer 1

digital camera

Question 2

A(n) _____ is a well-tested concept that explains a large number of proven hypotheses.

Answer 2

theory

Question 3

In the binocular designation 10×50, 50 describes the _____.

Answer 3

size of the objective lens

Question 4

A(n) _____ is the most versatile piece of equipment for astrophotography.

Answer 4

single-lens reflex camera

Question 5

A(n) _____ mounting is easy to set up, but must be moved both vertically and horizontally at once to compensate for Earth’s rotation.

Answer 5

altazimuth

Question 6

A(n) _____ mounting is especially good for photography.

Answer 6

equatorial

Question 7

Our entire universe is expanding in every direction and our _____ is becoming less pronounced.

Answer 7

curvature

Question 8

The current view is that our universe is flat and will end in a “_____.”

Answer 8

Big Chill

Question 9

Einstein’s premise for general _____ was that the laws of nature are the same for all systems, regardless of their state of motion.

Answer 9

relativity

Question 10

A(n) _____ is an electronic device that permits current flow in only one direction.

Answer 10

diode