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🔴❗2: F 9/25, 🟡❗4: F 9/25, 🔵❗5: F 9/25 - assessment
🔴❗2: F 9/25, 🟡❗4: F 9/25, 🔵❗5: F 9/25 - assessment
❗Assessment on Chapters 5 and 6 in Halliday plus banked turns TODAY!
Homework: Finish energy review problems from the previous post. Watch this video for a momentum review:
🟥 2: T 9/29, 🟨 4: M 9/28, 🟦 5: M 9/28 - momentum problems
🟥 2: T 9/29, 🟨 4: M 9/28, 🟦 5: M 9/28 - momentum problems
Daily Check-in #6: Momentum Review
Today, we'll start by finishing any energy problems that you haven't finished from the last set.
Then, we'll review momentum by doing the following problems from Chapters 9 to review momentum problems from last year.
Support: 18, 22, 39, 58
Required: 32, 38, 42, 44, 48, 59, 117
Enrichment: 20, 69, 83
If you feel confident with momentum, you may start watching the three homework videos below.
Homework: We'll move on to the next unit. You will work independently to learn about torque. Watch the following demonstration. Think about why my daughter appears stronger than me! (I was actually pushing pretty hard!)
There are two additional videos to watch for homework:
❤️ 2: W 9/30 lab, 💛 4: T 9/29 lab, 💙 5: W 9/30 lab - torque meterstick lab
❤️ 2: W 9/30 lab, 💛 4: T 9/29 lab, 💙 5: W 9/30 lab - torque meterstick lab
Daily Check-in #7: Static Equilibrium - component of force method
Today, we'll apply the concepts of torque and static equilibrium to find the mass of a meterstick. If you still need help here, review the following video.
Lab Safety: Be careful when handling metersticks that you do not swing into someone else. Make sure that you handle masses with care and do not drop off the table as they could hurt you if they fall on you. Always follow your teacher's directions to use the equipment exactly as outlined.
Handout: Torque Meterstick Lab
Homework: Finish page 1 of the Torque Packet. Watch the video if you need help with the last problem.
Finally, watch the following video on using the line of action method to solve Static Equilibrium Problems. Also, read the following webpage on Vector Multiplication. Remember that to calculate torque, we use a cross product. Review the right hand rule.
In case you miss class, you can do the above lab by using some materials you have at home:
a ruler (at least 30cm) or meterstick or a long uniform stick that you can measure or put evenly spaced markings on. (Whatever you use should be as inflexible as possible, a metal or flexible ruler will probably not work.)
something thin that you can balance the ruler on (I used a round pencil taped to my desk, but you could perhaps even use your finger).
some coins or washers of known mass (the heavier your ruler, the heavier/more things you'll need) - you'll need probably 8 of the same type.
some tape to secure the coins or washers to the ruler.
Simulation Alternative: PhET Balancing Act - Part 1 can be done using this simulation if you do not have the materials. You'll have to partner with someone in your lab group for part 2 if you don't have physical materials.
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