Wednesday, February 24 th Agenda Quick review of Section 8.1 Quiz over Section 8.1 Movie: “ “...
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Transcript of Wednesday, February 24 th Agenda Quick review of Section 8.1 Quiz over Section 8.1 Movie: “ “...
![Page 1: Wednesday, February 24 th Agenda Quick review of Section 8.1 Quiz over Section 8.1 Movie: “ “ We will begin Section 8.2: Simple Machines next time.](https://reader036.fdocuments.in/reader036/viewer/2022082820/56649ceb5503460f949b5f2d/html5/thumbnails/1.jpg)
![Page 2: Wednesday, February 24 th Agenda Quick review of Section 8.1 Quiz over Section 8.1 Movie: “ “ We will begin Section 8.2: Simple Machines next time.](https://reader036.fdocuments.in/reader036/viewer/2022082820/56649ceb5503460f949b5f2d/html5/thumbnails/2.jpg)
Wednesday, February 24th
AgendaQuick review of Section 8.1Quiz over Section 8.1Movie: “ “
We will begin Section 8.2: Simple Machines next time
![Page 3: Wednesday, February 24 th Agenda Quick review of Section 8.1 Quiz over Section 8.1 Movie: “ “ We will begin Section 8.2: Simple Machines next time.](https://reader036.fdocuments.in/reader036/viewer/2022082820/56649ceb5503460f949b5f2d/html5/thumbnails/3.jpg)
Review: Section 8.1
1. What is the definition of work?
Answer: A quantity that measures the effects of a
force acting over a distance
![Page 4: Wednesday, February 24 th Agenda Quick review of Section 8.1 Quiz over Section 8.1 Movie: “ “ We will begin Section 8.2: Simple Machines next time.](https://reader036.fdocuments.in/reader036/viewer/2022082820/56649ceb5503460f949b5f2d/html5/thumbnails/4.jpg)
Review: Section 8.1
2. How much work is done by a boy who uses a force of 65 N to lift a box 1.2 meters?(Hint: Work = Force X Distance)
Answer: 78 J
![Page 5: Wednesday, February 24 th Agenda Quick review of Section 8.1 Quiz over Section 8.1 Movie: “ “ We will begin Section 8.2: Simple Machines next time.](https://reader036.fdocuments.in/reader036/viewer/2022082820/56649ceb5503460f949b5f2d/html5/thumbnails/5.jpg)
Review: Section 8.1
3. What is the definition of power?
Answer: The rate at which work is done.
![Page 6: Wednesday, February 24 th Agenda Quick review of Section 8.1 Quiz over Section 8.1 Movie: “ “ We will begin Section 8.2: Simple Machines next time.](https://reader036.fdocuments.in/reader036/viewer/2022082820/56649ceb5503460f949b5f2d/html5/thumbnails/6.jpg)
Review: Section 8.1
4. How much power is needed to do 180 J of work in 2.4 seconds? (Hint: power = work/time)
Answer: 75 W
![Page 7: Wednesday, February 24 th Agenda Quick review of Section 8.1 Quiz over Section 8.1 Movie: “ “ We will begin Section 8.2: Simple Machines next time.](https://reader036.fdocuments.in/reader036/viewer/2022082820/56649ceb5503460f949b5f2d/html5/thumbnails/7.jpg)
Review: Section 8.1
5. What is the definition of mechanical advantage?
Answer: A quantity that measures how much a
machine multiplies force or distance.
![Page 8: Wednesday, February 24 th Agenda Quick review of Section 8.1 Quiz over Section 8.1 Movie: “ “ We will begin Section 8.2: Simple Machines next time.](https://reader036.fdocuments.in/reader036/viewer/2022082820/56649ceb5503460f949b5f2d/html5/thumbnails/8.jpg)
Review: Section 8.1
6. A ramp is a type of what?
Answer: Machine
![Page 9: Wednesday, February 24 th Agenda Quick review of Section 8.1 Quiz over Section 8.1 Movie: “ “ We will begin Section 8.2: Simple Machines next time.](https://reader036.fdocuments.in/reader036/viewer/2022082820/56649ceb5503460f949b5f2d/html5/thumbnails/9.jpg)
Review: Section 8.1
7. Calculate the mechanical advantage of a ramp that is 2.0 m long and 0.50 m tall.
Hint: mechanical advantage = input dist/output dist (height)
Answer: 4.0
![Page 10: Wednesday, February 24 th Agenda Quick review of Section 8.1 Quiz over Section 8.1 Movie: “ “ We will begin Section 8.2: Simple Machines next time.](https://reader036.fdocuments.in/reader036/viewer/2022082820/56649ceb5503460f949b5f2d/html5/thumbnails/10.jpg)
Section 8.1 Quiz
You may use your guided notes and your book.
![Page 11: Wednesday, February 24 th Agenda Quick review of Section 8.1 Quiz over Section 8.1 Movie: “ “ We will begin Section 8.2: Simple Machines next time.](https://reader036.fdocuments.in/reader036/viewer/2022082820/56649ceb5503460f949b5f2d/html5/thumbnails/11.jpg)
Movie: “ “
I will not require you to take notes on the movie but be aware that there could be a test question from the movie.