Elementary Science Methods 1

The big question addressed in lab, and a description of what you did In the begining of lab, we had a discussion about formative assesments and how important they are to encourage student learning.  Why do you need to push a child on a swing to keep them going?  Why does a swing slow doen and stop?  - pendulum collides with air particles, speeding them up and slowing them down. the collissions transfer energy from the pendulum to the air. Air speeds up, energy is trandered to air, so less energy is in the swing.  too much Force breaks the egg, big force means big acceleration  F=ma  acceleration = change in velocity/time  we watched a video about Newtons Third Law Energy transers from the egg to the surface, then.. surface matierlas fly off  A description of what you learned in Thursday's lecture NO LECTURE - EXAM  Answer questions about the weekly textbook reading: forces and energy  What did you learn?  I learned about potential a...

  The big question addressed in lab, and a description of what you did. Speed- how fast you are going in terms of direction  velocity- speed plus direction you are moving  acceleration- how fast you change you speed and direction  FORCE CAUSES ACCELERATION  Gravity pulls harder on more massive things, but more massive things are harder to speed up, density is a factor in gravity Gravity races- tennis ball and piece of paper  tennis ball won first - paper was crumbled looser, less dense, more air can go through  tie second - paper was crumbled more into a smaller ball  Investigating Swings  variables to test:  - kicking or not - length of chain  - pushed - or not  - windy  Does the length of the swing chain affect the time it takes to go back and forth?  Hypothesis: Yes, the longer the chain the longer in time it will take to go back and forth.  A description of what you learned in Thursday's lecture We filled out...

The big question addressed in lab, and a description of what you did. We addressed how to interperet motion graphs. The big question was what affects a rider's speed down a slide?  When testing this question, there are different variables to consider/test like slide material, steepness, initial push, weight, temp, wet/dry slide, running start... etc.  Does the weight of a rider affect the speed as they go down the slide?  A description of what you learned in Thursday's lecture In lecuture, we learned about acceleration=change in velocity/time acceleration often gets confused with speed, however, it is different  a question we looked into was WHY do riders accelerate as they slide?  Accelerate in 3 different ways Forces have a magnitude (size) and a direction  Friction depends on... - types of surfaces  - how hard the surfaces are pushed togehter Answer questions about the weekly textbook reading:  What did you learn?  I learned that even...

  The big question addressed in lab, and a description of what you did. How and why do things move? How can we support tplay that is exciting but not dangerous? Physics Unit  The idea of Races During lab, our goal was to figure out a way to make a race exciting with two different people racing. The two different people have opposite speeds. We needed to calculate each persons meter per second, in order to determine which individual should start the race at a different time/place. Our group chose one speed walker and one normal walker. We tested and figured out that normal walker and to start 4 seconds ahead the speed walker in order for both individuals to reach the finish line at a similar time. Below is attached data from our testing and trials.  A description of what you learned in Thursday's lecture. In lecture, we learned about how to describe motion. We comapred what our models included vs what we ignored. We also discussed what we will expect young learne...