scipy.constants module - Mini Project: Build & Apply

Using scipy.constants Module for Physical Constants

📖 Scenario: You are working on a science project where you need to use some common physical constants like the speed of light, Planck's constant, and the gravitational constant. Instead of memorizing these values, you will use the scipy.constants module to get accurate values.

🎯 Goal: Build a small Python program that uses the scipy.constants module to access and display specific physical constants.

📋 What You'll Learn

Import the scipy.constants module

Access the speed of light constant named c

Access Planck's constant named Planck

Access the gravitational constant named G

Print these constants with descriptive text

💡 Why This Matters

🌍 Real World

Scientists and engineers often need accurate physical constants for calculations in physics, chemistry, and engineering projects. Using scipy.constants helps avoid errors from manual entry.

💼 Career

Knowing how to use scientific libraries like scipy.constants is useful for data scientists, researchers, and engineers working with scientific data and simulations.

1

Import scipy.constants module

Write a line of code to import the scipy.constants module with the name constants.

SciPy

# Import scipy.constants as constants
# Your code here

Need a hint?

Use the import keyword followed by scipy.constants as constants.

2

Create variables for constants

Create three variables named speed_of_light, planck_constant, and gravitational_constant. Assign them the values constants.c, constants.h, and constants.G respectively.

SciPy

import scipy.constants as constants
# Assign constants.c to speed_of_light
# Assign constants.h to planck_constant
# Assign constants.G to gravitational_constant
# Your code here

Need a hint?

Use the dot notation to get each constant from constants and assign it to the variable.

3

Format the output strings

Create three strings named speed_text, planck_text, and gravity_text. Use f-strings to format each string to say exactly:
- "Speed of light: {speed_of_light}"
- "Planck's constant: {planck_constant}"
- "Gravitational constant: {gravitational_constant}"

SciPy

import scipy.constants as constants
speed_of_light = constants.c
planck_constant = constants.h
gravitational_constant = constants.G
# Create speed_text using f-string with speed_of_light
# Create planck_text using f-string with planck_constant
# Create gravity_text using f-string with gravitational_constant
# Your code here

Need a hint?

Use f-strings with the variable names inside curly braces to create the formatted strings.

4

Print the constants with descriptions

Print the variables speed_text, planck_text, and gravity_text each on a separate line.

SciPy

import scipy.constants as constants
speed_of_light = constants.c
planck_constant = constants.h
gravitational_constant = constants.G
speed_text = f"Speed of light: {speed_of_light}"
planck_text = f"Planck's constant: {planck_constant}"
gravity_text = f"Gravitational constant: {gravitational_constant}"
# Print speed_text
# Print planck_text
# Print gravity_text
# Your code here

Need a hint?

Use three print() statements, one for each formatted string variable.