Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the SI unit for mass?
💡 Hint: Think about what we use to measure how much matter is in an object.
Question 2
Easy
Define accuracy in your own words.
💡 Hint: Reflect on how you would check if something measures correctly.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the SI unit for temperature?
- Degrees Celsius
- Kelvin
- Fahrenheit
💡 Hint: Think about absolute zero when answering.
Question 2
True or False: Precision refers to how close a measurement is to the true value.
- True
- False
💡 Hint: Reflect on the definitions of both terms.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An experiment requires measurements of volume where results are 45.0 mL, 45.2 mL, 44.9 mL. Calculate the average volume and discuss its accuracy and precision if the true volume is 45.1 mL.
💡 Hint: Calculate the mean first before evaluating.
Question 2
You measure a piece of wire multiple times and get 0.0045 m, 0.00455 m, and 0.0045 m. Identify the significant figures for each measurement and discuss their precision.
💡 Hint: Focus on rules of significant figures.
Challenge and get performance evaluation