putting it in motion. complete student log book: pages 2 and 3
TRANSCRIPT
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Putting It In Motion
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Complete
• Student Log Book: Pages 2 and 3
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• What is Motion?• What do you want to know about motion?• List 5 things that can move or be moved that can be found around your house.
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DIFFERENT TYPES OF MOTION
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Linear Motion• A movement in a straight line between two
points
Examples?
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Rotational Movement• A movement along a curved path or in a
circle
Examples?
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Reciprocating Motion• Movement that goes up and down in a
straight line
Examples?
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Oscillating Motion• A movement that goes backwards and
forwards in a straight line
Examples?
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Homework Activity
• Please bring in some toys for next day.
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Activity: Complete
• Student Logbook: Page 4
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Exploration: Make an Object Move – Page 10
• Complete Student Logbook: Pages 5 and 6.
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Energy
• The capacity to do work.
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Potential Energy
• The capacity of a stationary object to do work.
• Potential energy can be converted into kinetic energy.
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Kinetic Energy
• Moving Energy
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Exploration: Observe Colliding Objects – Page 14• Coins• Marbles• Rulers
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EXPLORATION: HOW DOES A PENDULUM MOVE? - PAGE 18Complete Student Logbook: Pages 7, 8 and 9
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Friction
• What is friction?
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VIDEO
http://learning.aliant.net/Player/ALC_Player.asp?ProgID=DEP_BN042
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EXPLORATION: WATCH IT ROLL. WATCH IT SLIDE - PAGE 22
Complete Student Logbook: Pages 10, 11 and 12
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Complete
• Student Logbook: Page 13 ,14 and 15
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Wedge
Inclined Plane
Screw
Wheel and Axle
Lever
Pulley
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Simple machines are useful because they can make a physical job easier by changing the magnitude or the direction of the force exerted to do work.
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Have you ever tried to unscrew a nut, bolt, or screw from something with your bare hands and discovered that it was just too tight to loosen even if you had a good grip?
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You got the proper tool, such as a screw driveror wrench, and unscrewed it!
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Why is it that it's so easy to unscrew with a tool when you can't with your bare hands?
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The wrench and screw driver are examples of a wheel and axle, where the screw or bolt is the axle and the handle is the wheel. The tool makes the job easier by changing the amount of the force you exert.
Axle
Wheel
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All of the simple machines can be used for thousands of jobs
from lifting a 500-pound weight to making a boat go. The
reason why these machines are so special is because they make
difficult tasks much easier.
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Fulcrum
Load
Click Here to Learn More
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Click on the dude to learn more.
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A screw is an inclined plane wrapped around a post.
Click on the light bulb to learn more.
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Two inclined planes make a wedge.
Try to catch the saw to learn more.
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Axle
Wheel
Click on the windmill to learn more.
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Wheel
Rope This box is easier to lift because of the pulley. Click on it to learn more.
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Have you learned it all yet? Let’s look at a worksheet to see.
Click Here
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Complex Machines• Machines made from putting two or
more simple machines together
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Click
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EXPLORATION: BUILD A LIFTING MACHINE - PAGE 30Complete Student Logbook Pages 15, 16 and 17
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Homework Assignment
• Complete Student Logbook Pages 18 and 19
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Levers
There are three classes of levers:
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LeversFirst Class: It has the fulcrum between the effort and the load.
Fulcrum: the place where the lever turns
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Levers• Second Class: the load is located between the effort and the fulcrum.
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Levers• Third Class: The effort is between the load and the fulcrum.
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Exploration: Investigate the Lever – Page 34 • Complete Student Logbook Pages 20 and 21
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Exploration: Pull It Up A Slope – Page 38• Complete Student Logbook Pages 22 and
23
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Exploration: Test a Set of Gears – Page 42• Complete Student Logbook Pages 24 and
25
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EXPLORATION: USE A FIXED AND A MOVING PULLEY – PAGE 46
Complete Student Logbook Pages 26 and 27
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Technology and YouPages 50 - 53
• List and briefly explain 5 ways technology has benefitted your life.
• List and briefly explain 2 ways technology has affected the environment.
Complete Student Logbook Page 28
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Assessment
• Assignment