Mr. Mak's Grade 8 Science Website

*Our Fluids test will be on Thursday, April 12. If you are absent due to illness or athletics, it is your responsibility to speak to Mr. Mak and make up the test as son as possible. *The Hydraulics and Pneumatics Mini-assignment is due by Friday, April 6 Part 1 - Hydraulics https://www.youtube.com/watch?v=YlmRa-9zDF8 Part 2 - Pneumatics https://www.youtube.com/watch?v=-ZFR73WYqkk Mini-Assigment Questions Pressure machines are grouped as either _________________ or ____________. State the two most important ideas for understanding how a hydraulic system works. Define hydraulic system. Briefly explain how a hydraulic system can “multiply force.” Which fluid is typically used in hydraulic systems? Briefly explain, in your own words, how the hydraulic brakes on a car work. List and briefly describe three examples of real-world uses for hydraulics other than car brakes. What do pneumatic systems use instead of oil or water? In your own words,

*The PART 1 questions should be completed and submitted to Mr. Mak BEFORE March break. *PART 2 questions should be done by the end of our first week back after March Break *All students are welcome to sign out a copy of the Fluids mini-textbook overnight, if needed. *All Water Filtration Lab Reports should be handed-in BEFORE March Break, if not already submitted Introduction to Fluids Assignment - Part 1 *Use mini-textbooks (Fluids) to answer each question in your Science journal. Page hints are given in brackets. Work will be checked and marked. Which two states of matter are considered fluids. (p. 8) In your own words, define flow rate. (p. 8) In your own words define aerodynamics. (p. 8) In your own words, define hydrodynamics. (p. 8) Complete the sentence: Fluids, such as liquids and gases, fill whatever _________________________. (p. 9) Jot down three key ideas from the particle theory of matter. (p.9) In a solid, particles are __________ tog