Week 5 Shirley's Blog

 Lab：Talked about homework article first. 

-Defined word assessment.

-Think other more assessment not only quizzing assessment. 

-Can support take photos sometimes or other things when the students have trouble about it.

- Formative assessment 

    nobody get grades

    don't mean a quiz

 Energy Simulation

-Collisions with air particles transfer energy from the rider to the surrounding air.

-Pushing transfers energy back to the rider as they speed up.

We ask to do to protect the egg, and use the material that provide. Challenge: Prevent an egg from breaking when dropped from a height of 1-meter 

Constraint: Surface must be no thicker than your bowl 

Testing: Record a slow-motion video of impact.

Here is our short video from 1 meter high to drop down the egg, it survived.

Then we did the second time, we dropped the egg from 2 meters high. It was cracked at the end. Here is the video what we did.

 

Why are both the surface and the falling object affected during the impact?

Newton's Third Law

-Forces come in equal pairs (Each acting on a different object)

Then the teacher weighted a wooden block and a bucket of water side-by-side on a scale twice like the picture, then the weight stay the same after we guess. The result was also same as we guess.

The ENERGY lens on motion 

-Energy is manifest in many ways, e.g.: movement, light, heat, electricity 

-Energy can be transferred from one system to another 

-Energy is never created nor destroyed.

Lecture: No Lecture，Exam 1

Pressbook: Same with last week