Practice Stefan–boltzmann Law (3) - Radiation Heat Transfer - Heat Transfer & Thermal Machines
Students

Academic Programs

AI-powered learning for grades 8-12, aligned with major curricula

Engineering Courses
Professional

Professional Courses

Industry-relevant training in Business, Technology, and Design

Certifications
Games

Interactive Games

Fun games to boost memory, math, typing, and English skills

Stefan–Boltzmann Law

Practice - Stefan–Boltzmann Law

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define the Stefan–Boltzmann Law.

💡 Hint: Think about how temperature affects radiation.

Question 2 Easy

What does the Stefan–Boltzmann constant (σ) approximate to?

💡 Hint: It is a specific constant used in thermal calculations.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the Stefan–Boltzmann Law state?

The energy radiated by a body is inversely proportional to its temperature.
The energy radiated by a body is proportional to its absolute temperature to the fourth power.
The energy radiated by a body depends on its color.

💡 Hint: Think about how temperature changes affect heat.

Question 2

True or False: A blackbody has an emissivity less than 1.

True
False

💡 Hint: Recall the definition of a blackbody.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A solar panel absorbs 1000 W/m² from sunlight. If its emissivity is 0.9 and it operates at 350 K, what is the power it emits back to the environment?

💡 Hint: Remember to plug into the emissivity formula.

Challenge 2 Hard

Determine the temperature of a blackbody that emits 5000 W/m² according to the Stefan–Boltzmann Law.

💡 Hint: Rearranging formulas can help isolate the temperature.

Get performance evaluation

Reference links

Supplementary resources to enhance your learning experience.