Q01.py

48
 
1
# -------------------------------------------------------------------
2
# Constants
3
# -------------------------------------------------------------------
4
MOON_GRAVITY = 1.62
5
EARTH_GRAVITY = 9.80665
6
​
7
# -------------------------------------------------------------------
8
# Global variables
9
# -------------------------------------------------------------------
10
mass = 0.0
11
weightOnEarth = 0.0
12
weightOnTheMoon = 0.0
13
layout = ""
14
​
15
# -------------------------------------------------------------------
16
# Subprograms
17
# -------------------------------------------------------------------
18
# weight = mass × gravitational field strength
19
def calculateWeight(pMass, pGravity):
20
  return pMass * pGravity
21
  
22
# -------------------------------------------------------------------
23
# Main program
24
# -------------------------------------------------------------------
25
​
26
# ask user to input mass
27
print("Welcome to the Earth and Moon weight calculator")
28
print("=" * 47)
29
mass = float(input("Enter the mass of an object (in Kg)"))
30
​
31
# Calcuate weight on earth & moon
32
weightOnEarth = calculateWeight(mass, EARTH_GRAVITY)
33
weightOnTheMoon = calculateWeight(mass, MOON_GRAVITY)
34
​
35
# Display results
36
layout = "The weight on {} is {:.2f} N (newtons)"
37
print(layout.format("Earth", weightOnEarth))
38
print(layout.format("The Moon", weightOnTheMoon))
39
​
40
# Challenges:
41
# Answer each of the questions below next to where it says A)
42
# e.g. Q) Write the symbol used for comments:       A) #
43
​
44
# Q1) Write the identifier of a constant:           A)
45
# Q2) Write the name of a user defined function:    A)
46
# Q3) What is the data type of the layout variable: A)
47
# Q4) Name one parameter used in the code:          A)
48
# Q5) An arithmetic operator used in the code:      A)