Students taking Astronomy I should be able to do basic high school algebra. This quiz is designed to give students planning on taking this class an idea of the level of math required. After taking this exam, check your answers. If you missed more than 2 problems, you should consider taking Math 1710 to brush up on your math skills.

1. Given the equation 10/x = y and y = 5, what is x?
a) 10.     b) 5.     c) 2.     d) 1/2.     e) 50.

2. There are 60 arcminutes in a degree. How many arcminutes are there in 0.1 degrees?
a) 600.     b) 10.     c) 6.     d) 0.6.     e) 0.1.    

3. There are 3 X 10⁷ seconds in a year. How many seconds are there in a billion (10⁹) years?
a) 3 X 10⁶³ seconds.
b) 3 X 10^-2 seconds.
c) 3 X 10² seconds.
d) 3 X 10^-16 seconds.
e) 3 X 10¹⁶ seconds.

4. If F = G/R², and R = 3 and F = 2, what is G?
a) 6.
b) 1/6.
c) 9/2.
d) 3/2.
e) 18.

5. If F = G/R², and G remains constant while R increases by a factor of 3, what happens to F?
a) It increases by a factor of 3.
b) It increases by a factor of 9.
c) It decreases by a factor of 3.
d) It decreases by a factor of 9.
e) It remains the same.

6. If Y = 30 A², and A increases by a factor of 10, how much does Y change?
a) It increases by a factor of 10.
b) It increases by a factor of 100.
c) It decreases by a factor of 100.
d) It decreases by a factor of 10.
e) It remains constant.

7. If R = 30/D, and R = 5, what is D?
a) 150.
b) 1/150.
c) 5.
d) 6.
e) 25.

Answers