Motion, Forces, and Simple Machines Unit Week 36 Directions 1.Prepare your desk for science. Science...
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![Page 1: Motion, Forces, and Simple Machines Unit Week 36 Directions 1.Prepare your desk for science. Science notebook 1.Use voice level 0 (no voice) to read through.](https://reader035.fdocuments.us/reader035/viewer/2022062503/5a4d1afb7f8b9ab059983f72/html5/thumbnails/1.jpg)
Motion, Forces, and Simple Machines Unit
Week 36Directions1.Prepare your desk for science.• Science notebook
2.Use voice level 0 (no voice) to read through your written analysis and conclusion on notebook pg. 89.
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Written Analysis & Conclusion
Written Analysis: How did using the different materials affect the angle at which the objects moved? What are your results from the experiment?
Conclusion: Was your hypothesis correct or incorrect? Why? Use background research, scientific information/vocabulary, and your own observations to support your thinking.
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Reflection Questions
• What did you learn about friction? What is the effect of friction on the motion of objects?– What surfaces caused the most friction?– Did friction keep objects from starting to move?
• Other than friction, were there other forces acting upon the car and eraser?
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Targets & Warm Up
Targets:•Students will identify noncontact forces that affect motion.•Students will demonstrate and describe the way things move and change motion.
Warm Up: None
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Table of Contents
Date Title Page6-1-15 Noncontact Forces:
Gravity90
Once you are finished with the Table of Contents, go to page 90 and add the title and date to the top of the page.
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Force
Force• Any push or pull that can make an object
move or make a moving object move faster, slow down, stop, or change direction
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Noncontact Forces
Noncontact forcesForces that do not touch an object to affect it
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Noncontact Forces: Gravity
Gravity• A force of attraction between two or more
objects over a distance• Makes objects pull towards each other
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Newton’s Law of Universal Gravitation • Isaac Newton was the first one to
suggest that gravity is universal and affects all objects in the universe.
• The force that causes an apple to fall from a tree to the ground is the same force that causes the moon to keep moving around Earth.
• While Earth exerts a pull on you, you exert a pull on Earth. There is gravity between you and every mass around you—your desk, your book, your pen.
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Noncontact Forces: Gravity
• The force of gravity between objects depends on:– Their masses– The distance between them
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Noncontact Forces: Gravity
• Mass: The force of gravity if stronger if the object has a greater mass
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Noncontact Forces: Gravity
• Distance: The force of gravity is stronger if objects are closer together
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Mass vs. WeightNewton (N) = unit of force
1 N = the force you need to lift a small apple
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BrainPop Video: Gravity
https://www.brainpop.com/science/motionsforcesandtime/gravity/
(3 minutes)
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Your Task
• Use a noncontact force (gravity) to make the ball move
• Use a noncontact force (gravity) to make the ball…–Change speed–Change direction–Stop
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Reflection Questions
How can gravity make a ball:• Change speed?• Change direction?• Stop?
Skip 3 lines in between each one
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Targets (Revisited)
• Students will identify noncontact forces that affect motion.
• Students will demonstrate and describe the way things move and change motion.
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Homework
Subject Homework Due DateScience Fix notebook pg. 89
QuizTuesday
Wednesday
Start bringing home your science notebook to study!