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Transcript
Work Hard – Get Smart – No Excuses. Scientist’s Name: _________________________________ 1 FORCES Webquest: Gravity, Friction, Newton’s Laws First Stop = Forces and Motion!! http://idahoptv.org/sciencetrek/topics/force_and_motion/facts.cfm 1. How is motion defined in the first paragraph? ____________________________________ __________________________________________________________________________________________________ 2. Motion requires what to cause change? ______________________________________________ __________________________________________________________________________________________________ 3. Force is a fancy word for…? _____________________________________________________________ 4. Gravity produces a force that does what? ___________________________________________ __________________________________________________________________________________________________ 5. Why is gravity important to the Earth in regards to the sun? _____________________ __________________________________________________________________________________________________ 6. In your own words, explain a “Normal Force”… _____________________________________ __________________________________________________________________________________________________ 7. Provide 5 examples of “Normal Forces” in your school, classroom, home, etc. __________________________________________________________________________________________________ 8. Read about “Applied Forces” and provide 5 examples applied forces. __________________________________________________________________________________________________ 9. Under frictional forces, what is the force of friction caused by? _________________ __________________________________________________________________________________________________ 10. How can friction be helpful? __________________________________________________________ __________________________________________________________________________________________________ 11. How can friction be destructive? ____________________________________________________ __________________________________________________________________________________________________ 12. Read the section titled “resisting forces”. In you're your own words, explain “air resistance or air friction”. ___________________________________________________________ __________________________________________________________________________________________________ Work Hard – Get Smart – No Excuses. Scientist’s Name: _________________________________ 2 13. Under the section “what is friction” do heavier objects cause more or less friction? ____________________ Explain why. __________________________________________________ 14. Define Velocity. __________________________________________________________________________ __________________________________________________________________________________________________ 15. What is the MAJOR IMPORTANT difference between Velocity and Speed? __________________________________________________________________________________________________ ---------------------------------------Second Stop = Exploring Newton’s Laws of Motion! http://www.sciencechannel.com/games-and-interactives/newtons-laws-of-motion-interactive/ If you don’t have flash flayer, you can use the video: https://www.youtube.com/watch?v=MLlLL9BDszA 1. What is the Newton’s First Law of Motion? __________________________________________ __________________________________________________________________________________________________ **Watch the Interactive and pay careful attention… 2. Explain the examples of Newton’s First Law of Motion shown in the interactive: __________________________________________________________________________________ __________________________________________________________________________________________________ __________________________________________________________________________________________________ 3. What is the Newton’s Second of Motion? ______________________________________________ __________________________________________________________________________________________________ **Watch the Interactive and pay careful attention… 4. How is the Law explained in the interactive? Include the formula. ______________ __________________________________________________________________________________________________ __________________________________________________________________________________________________ 5. Explain the examples of Newton’s Second Law of Motion shown in the interactive: __________________________________________________________________________________ __________________________________________________________________________________________________ __________________________________________________________________________________________________ 6. What is the Newton’s Third Law of Motion? __________________________________________ __________________________________________________________________________________________________ Work Hard – Get Smart – No Excuses. Scientist’s Name: _________________________________ 3 **Watch the Interactive and pay careful attention… 7. Explain the examples of Newton’s Third Law of Motion shown in the interactive: __________________________________________________________________________________ __________________________________________________________________________________________________ __________________________________________________________________________________________________ **Attempt the quiz and record your answers whether you got them correct: 1. ____________ correct? _____________ 6. ____________ correct? _____________ 2. ____________ correct? _____________ 7. ____________ correct? _____________ 3. ____________ correct? _____________ 8. ____________ correct? _____________ 4. ____________ correct? _____________ 9. ____________ correct? _____________ 5. ____________ correct? _____________ 10. ____________ correct? _____________ Third Stop: The Force of Friction Interactive and Game! http://www.bbc.co.uk/bitesize/ks2/science/physical_processes/friction/read/1/ 1) How is friction defined? ________________________________________________________________ __________________________________________________________________________________________________ 2) Friction always ________________________ a moving object down. 3) In what direction does friction always work? _______________________________________ 4) What does friction depend on? ________________________________________________________ __________________________________________________________________________________________________ 5) What kinds of surfaces have more friction? _________________________________________ 6) How can friction produce heat? _______________________________________________________ 7) Provide 3 + examples of how friction can be helpful. ______________________________ __________________________________________________________________________________________________ 8) Why would we ever want to reduce friction? ________________________________________ __________________________________________________________________________________________________ 9) Explain how air resistance is a form of friction. ________________________________ __________________________________________________________________________________________________ 10) Take the quiz! How did you do? ___________________________________________________ 11) Play the game What did you learn? ____________________________________________ Work Hard – Get Smart – No Excuses. Scientist’s Name: _________________________________ 4 __________________________________________________________________________________________________ Work Hard – Get Smart – No Excuses. Scientist’s Name: _________________________________ 5 Fourth Stop: The Force of Friction Experiment! http://www.learninggamesforkids.com/motion-games/friction-ramp.html 1. Click “yes”. This will take you to a “friction ramp activity”. There are 5 surfaces. 2. Hypothesis: List, in order from fastest from slowest, which surfaces you believe would be fastest slide down and which would be slowest to slide down: 1. ______________________________ 2. ____________________________ 3. ______________________________ 4. ______________________________ 5. _________________________________________ 3. Explain your answer! ____________________________________________________________________ __________________________________________________________________________________________________ **Test them out one at a time! 4. Results: which turned out to be the fastest and slowest? 1. ______________________________ 2. ____________________________ 3. ______________________________ 4. ______________________________ 5. _________________________________________ 5. Continue with the interactive… 6. What did you learn about friction through this mini-experiment? (2 sentences) __________________________________________________________________________________________________ __________________________________________________________________________________________________ ---------------------------------------Fifth Stop: Exploring Gravity Experiment http://www.glencoe.com/sites/common_assets/science/virtual_labs/E25/E25.html **Read the paragraph on the section left side “What is Newton’s Second Law of Motion?” and answer the following questions. 1. Define “Net Force”.________________________________________________________________________ 2. What force will be discussed in this interactive? _____________________________________ 3. Describe how the force of gravity affects a book on the desk (described in the example). ________________________________________________________________________________________ _____________________________________________________________________________________________________ 4. Describe the meaning of the formula F = MA. ______________________________________ _____________________________________________________________________________________________________ Work Hard – Get Smart – No Excuses. Scientist’s Name: _________________________________ 6 5. What is the unit of measurement for force? _____________________________ ** Scroll down to the Procedure Section. Carefully read the instructions! Directions: Choose planets o different masses and gravities and objects of different masses and gravities to investigate. Drop the objects and record your results below. Be sure to pay carefully attention to what you are noticing about the size of mass and the gravity of the plant in relation to how fast the objects fall. Location 1: Object 1 Location 2 Object 2 Trial Results Trial 1 ________________ ________________ Mass: Mass: Gravity: Gravity: ________________ ________________ Mass: Mass: Gravity: Gravity: ________________ ________________ Mass: Mass: Gravity: Gravity: ________________ ________________ Mass: Mass: Gravity: Gravity: Trial 2 Trial 3 Trial 4 1. Describe your results. How does the mass and gravity of a planet seem to affect the rate at which the object falls? __________________________________________________________________________________________________ __________________________________________________________________________________________________ __________________________________________________________________________________________________ 2. How does this relate to Net Forces and the formula F-MA? __________________________________________________________________________________________________ __________________________________________________________________________________________________ Work Hard – Get Smart – No Excuses. Scientist’s Name: _________________________________ 7 Sixth Stop: Find your weight on Other Planets…MASS VS. WEIGHT! http://www.exploratorium.edu/ronh/weight/ 1. Enter in your weight and click “calculate”. On which planet do you weigh the most? _________________ On which planet do you weight the least? _____________________ 2. How much do you weigh on the sun? _________________________ 3. Read the section “What’s going on?” underneath the planets. 4. Every object in the universe with mass… _____________________________________________ __________________________________________________________________________________________________ 5. The amount of attraction depends on? _____________________________________________ __________________________________________________________________________________________________ 6. The force of attraction between you and the Earth (or any other planet) is called? ________________________________ 7. If you are in a spaceship in space you are weightless. You don’t have weight. However, do you still have mass? ___________________________ 8. Weight is a measure of….. _______________________________________________________________ __________________________________________________________________________________________________ 9. What are the two things your weight (the force of gravity) depends on? 1. _______________________________________________________________________________________ 2. _______________________________________________________________________________________ 10. Which changes depending on the force of gravity - MASS or WEIGHT? ____________________________________ 11. Which stays the same always – MASS or WEIGHT? ________________________________ Work Hard – Get Smart – No Excuses. Scientist’s Name: _________________________________ 8 Follow up Questions… **3 Things you learned: ______________________________________________________________________ __________________________________________________________________________________________________ __________________________________________________________________________________________________ **2 Things you found interesting: __________________________________________________________________________________________________ __________________________________________________________________________________________________ **1 Question you have: __________________________________________________________________________________________________ 1. Which was your favorite website/interactive and why? __________________________________________________________________________________________________ 2. What was your favorite thing to learn about and why? __________________________________________________________________________________________________ 3. What was the most confusing thing to learn about and why? __________________________________________________________________________________________________ Early Finishers Challenges and Games matchit definitions - http://www.learninggamesforkids.com/motion-games/motion-matchit.html word o rama :http://www.learninggamesforkids.com/motion-games/motion-word-o-rama.html letter fall: http://www.learninggamesforkids.com/motion-games/motion-letterfall.html motion maze - http://phet.colorado.edu/en/simulation/maze-game