Name:____________________________________ Per:____________________ Unit D Guided Reading Questions for Research SECTION 1: Use your textbook and netbook to access the “Links” section on my webpage. Use the first three links to help you find answers to the following questions. Be sure to read the articles found within the links to understanding and background of Physics. For questions 1-10, circle the correct answer. 1. The scientific method was developed to help scientists organize the process of solving problems. TRUE or FALSE 2. Which of these is not a step of the scientific method? a. HYPOTHESIS b. EXPERIMENT c. CONCLUSION d. PLAGIARY 3. Which of these words would you NOT associate with the scientific method? a. DISORGANIZED b. ORGANIZED c. DATA d. CONTROL 4. A hypothesis is... a. A RANDOM THOUGHT b. AN ANSWER c. AN EDUCATED GUESS d. AN EXPERIMENT 5. Which of these would be called results? a. NUMBER OF FRUIT FLIES b. COUNTING FRUIT FLIES c. SEEING FRUIT FLIES ON AN APPLE d. WONDERING WHY A FRUIT FLY WAS BORN 6. What do you do to test a hypothesis? a. GUESS b. CREATE A SPREADSHEET WITH DATA c. PUBLISH d. DESIGN AN EXPERIMENT 7. A control group is used as a comparison to the group where things (variables) are changing. TRUE or FALSE 8. An independent variable is a factor that changes because of procedures conducted on the dependent variable. TRUE or FALSE 9. Experiments are usually conducted one time and by one team to speed up the scientific process. TRUE or FALSE 10. Experiments often test multiple variables. TRUE or FALSE 11. Write a brief definition for the following. Can you explain the difference between them? a. HYPOTHESIS: b. THEORY: c. LAW: SECTION 2: Read over Unit D, Chapter 2 pages 38-47. Use Chapter/Section 2.1 in your textbook and the “Links “ section of my webpage to answer the following questions AND to see examples/demonstrations:: 1. Explain the difference between balance and unbalanced forces. 2. What is inertia and how is it related to mass? 3. What are the 3 types of forces? 4. What is the difference between a force and net force? 5. What is Newton’s first law of motion? SECTION 3: Read over Unit D, Chapter 2 pages 49-55. Use Chapter/Section 2.2 in your textbook and the “Links “ section of my webpage to answer the following questions AND to see examples/demonstrations:: 1. Define acceleration. 2. How does the mass of an object affect its acceleration? 3. What force keeps an object moving in a circle? In what direction does this force act? 4. What is the formula for calculating force? 5. What is the formula for calculating acceleration? 6. What is Newton’s second law of motion? SECTION 4: Read over Unit D, Chapter 2 pages 57-61. Use Chapter/Section 2.3 in your textbook and the “Links “ section of my webpage to answer the following questions AND to see examples/demonstrations: 1. Explain what an action/reaction pair is. Give two examples. 2. Explain the difference between balanced forces and action/reaction forces. 3. What is Newton’s third law of motion? 4. What do Newton’s three laws of motion help us do? SECTION 5: Read over Unit D, Chapter 2 pages 64-69. Use Chapter/Section 2.4 in your textbook and the “Links “ section of my webpage to answer the following questions AND to see examples/demonstrations: 1. What is momentum? Explain how momentum is like inertia. 2. What is the formula for calculating momentum? 3. What is a collision? Explain how a collision can affect the momentum of an object. 4. Explain the principle of “conservation of momentum”. Give one example. 5. Explain the two types of collisions. 6. How does increasing the speed of an object change its momentum? SECTION 7 - VOCABULARY: Read over PHYSICS 4 KIDS under the “Links “ section of my webpage AND use your textbook, Unit D Chapters 1, 2, 3, 4 and 5 (pages 6174) to define the following AND to see examples/demonstrations: 1. PHYSICS 2. FORCE 3. MASS 4. WEIGHT 5. GRAVITY 6. FRICTION 7. RESISTANCE 8. SPEED 9. VELOCITY 10. VECTORS 11. SCALARS 12. ACCELERATION 13. DECELERATION 14. SIMPLE MOVEMENT 15. COMPLEX MOVEMENT 16. MOMENTUM 17. COLLISION 18. WORK 19. JOULE 20. POWER 21. ENERGY 22. LAW OF CONSERVATION OF ENERGY 23. POTENTIAL ENERGY 24. KINETIC ENERGY 25. MACHINE 26. MECHANICAL ENERGY 27. MECHANICAL ADVANTAGE 28. SIMPLE MACHINES a. THREE CLASSES OF LEVERS & FULCRUM b. WHEEL & AXLE c. PULLEY d. INCLINED PLANE e. WEDGE f. SCREW 29. COMPOUND MACHINES 30. ROBOTS 31. MICROTECHNOLOGY / NANOTECHNOLOGY