Two short-answer questions and the python source code in text or screenshots of all programs.

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1. (20 points, each 2 points) The following truth table shows various combinations of the values true and false connected by a logical operator (and, or, not). Fill out the table to indicate whether the result of such a combination is True or False:

Logical Expression	Result (True or False)?
True and False	False
True and True
False and True
False and False
True or False
True or True
False or True
False or False
not True
not False

2. (20 points, each 2 points) Assume the variables a = 2, b = 4, c = 6, x=0, y=2, and z=4. Fill out the table to indicate whether the result of the following conditions is True or False:

Expression (Condition)	Result (True or False)?
a ==4 or b>2	Example answer: True
6<2 and a>3
1!= b and c != 3
a >= -1 and a <= b
not (a>2)
x or y
x and y
x or z
(x and y) or (y and z)
not y

3. (25 points) What do these code fragments print? Write the output into the Result column. Explain your result if necessary.

1) (5 points)

n = 1
m = -1
if n<-m:
    print(n)
else:
    print(m)

Result:

2) (5 points)

n = 1
m = -1
if -n>= m:
    print(n)
else:
    print(m)

Result:

3) (5 points)

x=0.0
y=1.0
if abs(x-y) < 1:
    print(x)
else:
    print(y)

Result:

4) (5 points)

import math
x = math.sqrt(2.0)
y = 2.0
if x * x == y:
    print('x=', x)
else:
    print('y=', y)

Result: (hint: it may not be the result you think. Run it in pycharm and test your result)

5) (5 points)

grade = 80 if grade >= 90: print('A') else: print('Not A') elif grade >= 80: print('B') elif grade >= 70: print('C') elif grade >= 60: print('D')

Result:

4. (20 points) Use ”if-elif-else” to write a program that prompts the user to input a numeric value and displays the effect of an earthquake, as measures by the Richter scale

Richter Scale
Value	Effect
8 or greater	Most structures fall
7 to 7.99	Many buildings destroyed
6 to 6.99	Many buildings considerably damaged, some collapse
4.5 to 5.99	Damage to poorly constructed buildings
Less than 4.5	No destruction of buildings

· (5 points) Draw a flowchart to understand the program selection flow

· (10 points) Write your program here, or copy/paste a screenshot of your Program:

· (2 points) Screenshot of a Program Run:

· (3 points) Save the program as “earthquake.py”. Upload the .py file as part of your submission.

5. (20 points) Write a program that reads an input temperature value, then reads an input letter (C for Celsius or F for Fahrenheit). Print whether the state of matter is liquid, solid, or gaseous at the given temperature at sea level. Let:

C = (F -32)*5/9

Solid: C<=0

Gaseous: C>=100

Liquid: 0<C<100

· (5 points) Draw a flowchart to understand the program selection flow

· (10 points) Write the program here, or copy/paste the screenshot of your program

· (2 points) Screenshot of a Program Run:

· (3 points) Save the program as “state.py”. Upload the .py file as part of your submission.