Skip to main content

week 4 science 2



 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 formative assesments to disocver if weight has an affect of the period of a swing. We concluded that it does not. Gravity pulls on more massive children with more force, more massive children are harder to acceerate. Energy is never created or destroyed. 


Answer questions about the weekly textbook reading: 

What did you learn? 

I learned about potential and kinetic energy. I also learned that weight does not affect the period neither does the angle of release. However, a longer pendulum has a longer period. 

What was most helpful? 

The videos included in this reading were really helpful because it provided a good visual of real world objects to demonstrate the potential and kinetic energy. I also liked that this reading had a quiz question, alothugh I got it wrong the first time, it provided a good explanation of why the other answer was correct. 

What do you need more information on?

I think more information on how to measure kinetic energy would be useful, I remember doing that in high school but I forgot most of the equations. 

What questions/concerns/comments do you have?

If energy is neither created or destroyed, where does the energy ome from? Force? Acceleration? How is energy just there? 

Comments

Post a Comment

Popular posts from this blog

science 2 week 14

  The big question addressed in lab, and a description of what you did. video notes  - 2020- hottest decade ever, largest number of mega-fires, caused by lots of droughts - fumes having impact on planet  - fires are now occuring annualy since earth is warming and droughts are more common  - sun is dominant source of energy  - carbon dixode peeked then went down then went back up again - plants takeup CO2 from atomospehere during summer, winter decomposition - caused by veggitation in northern hemisphere  - plant matter made up more of carbon 12 than carbon 13  - carbon coming from volanos have different ratios  Greenhouse effect  - image in presentation  Earths blenket and light  - certain gases in our atmosphere act like a blanket around the earth  - light rays coming from the sun contain visble photons (energetic light particles)  - abosrbed by earths surface A description of what you learned in Thursday's lecture. Why d...
Post a Comment
Read more

week 11 science 2

  The big question addressed in lab, and a description of what you did. We started lab having small and whole group discussion about formative assessments and teaching students based off of their questions. Next, we did an activity to determine 'who came first' which translates to how we are currently learning about things in earths history that occured first. We did an invesigation to determine what came fist in the principle of superposition.  - rocks form layers that become buried under more layers over time, the deeper we dig, the farther back in time we see. Fossils found deeper and deeper mean it gets older and older.  We also looked at the layers of earth.  1. sandstone  2. mudstone  3. limestone 4. volcanic ash  5. granite (shifts up, lead to fault line)  sand created through water is polished, smooth, similar in size  glaciers, polished, smooth, irregualr in size  wind  A description of what you learned in Thursda...
Post a Comment
Read more

science 2 week 12

  The big question addressed in lab, and a description of what you did. REVIEW: Different types of sand:  water (ocean)- polished,  smooth, similar in size  glaciers - polished, smooth, irregular  wind (dune) - opaque, fine grained, frosted, pitted  characteristics of water eriosion  - (1) headwaters, most gravity, moving faster, can carry mroe sediment - (2) TRANSFER ZONE, starts slowing down (3) depositional zone, U shaped river basin  when glaciers move acorss land, make U shaped valleys, not moving super fast  Transitioned into Climate Science  Measuring & Mapping, Precipitation in Iowa  How do we know if the goldfinch is in danger in Iowa?  I think they are starting to become endarged due to the evidence, but slowly. There has been an increase in rainfall which makes it harder for birds to survive.  A description of what you learned in Thursday's lecture. We took an exam during lecture.  Answer questions abou...
Post a Comment
Read more