# HP Cycle 25

## 2/9 - 2/14

W 2/9

Th 2/10

F 2/11

M 2/14

### π’ 6: W 2/9, π΅ 8: W 2/9 - β©οΈ Pivot lab energy conservation

[2023 - pendulum energy lab] Today, we'll check our understanding of energy conservation by doing a lab in β©οΈ Pivot Interactives called "Height vs Velocity for a Puck on a Ramp." Our goal in this lab is to find an experiment model for the relationship between the release height and the final velocity for an object sliding down a frictionless ramp. We'll compare this model with a theoretical model based on the concept of conservation of energy. We'll also use our data to find an experimental value of the acceleration due to gravity.

Homework: Assessment on Gravitation and Circular Motion Friday, February 11th. β©οΈ Pivot Interactives lab "Height vs Velocity for a Puck on a Ramp" is due on Tuesday at 10pm.

### π©β 6: F 2/11 - conservation of energy, K & Ug

Pd 6 - Assessment on Gravitation and Circular Motion TODAY!

After the assessment, we will talk about mechanical energy, including kinetic energy and gravitational potential energy. Finally, we'll explore the conservation of mechanical energy.

Presentation: Work & Energy Presentation (we will try to get through slides 23-35 today)

Optional Extra Practice: Page 2 in Work & Energy Packet. (Unit 6 CompuSheets Answers)

Homework: β©οΈ Pivot Interactives lab "Height vs Velocity for a Puck on a Ramp" is due on Tuesday at 10pm. If you happen to miss class or need to review, you can watch the following videos:

### π¦ 8: Th 2/10 - conservation of energy, K & Ug

Today, we'll start by correcting our last test. There is a new metacognition form to fill out at the top of Google Classroom so that you can reflect on your learning from the assessment.

Then, we will talk about mechanical energy, including kinetic energy and gravitational potential energy. Finally, we'll explore the conservation of mechanical energy.

With any time remaining, we'll continue working with the β©οΈ Pivot Interactives lab "Height vs Velocity for a Puck on a Ramp." You may not be able to complete the last part of the lab until after Tuesday's lesson, so make sure everything else is completed before then.

Presentation: Conservation of Energy Examples (we'll focus on slides 1-11)

Optional Extra Practice: Page 2 in Work & Energy Packet. (Unit 6 CompuSheets Answers)

Homework: Pd 8 - Assessment on Gravitation and Circular Motion next class - Friday, February 11th. β©οΈ Pivot Interactives lab "Height vs Velocity for a Puck on a Ramp" is due on Tuesday at 10pm. If you happen to miss class or need to review, you can watch the following videos:

Deriving formula for kinetic energy:

Even though the following video is on ELECTRIC potential energy, the beginning introduces how to derive the formula for gravitational potential energy, so ONLY WATCH FROM TIME 0:46-6:08:

Simple video on energy conservation:

### π 6: M 2/14 - β Positive Physics energy

Today, we'll may (?) start with test corrections if everyone has taken the test. There is a new metacognition form to fill out at the top of Google Classroom so that you can reflect on your learning from the assessment.

Then, we'll continue working with the β©οΈ Pivot Interactives lab "Height vs Velocity for a Puck on a Ramp." You may not be able to complete the last part of the lab until after Tuesday's lesson, so make sure everything else is completed before then.

Finally, we'll practice all we've learned about work and energy by doing β Positive Physics unit 13: energy "work" problems from the following sections:

• energy identification 1

• conservation of energy

NOTE: Positive physics uses some unconventional vocabulary:

• "KE" is kinetic energy (K).

• "GPE" is gravitational potential energy (Ug).

• "EPE" is elastic potential energy (Ue).

• "work" means POSITIVE work done by a non-conservative force.

• "loss" means NEGATIVE work by a non-conservative force.

Presentation: Conservation of Energy Examples (we'll focus on slides 1-11)

Homework: β Positive Physics unit 13 problems due Monday at 10pm. Only completion score counts. No late work will be accepted. β©οΈ Pivot Interactives lab "Height vs Velocity for a Puck on a Ramp" is due on Tuesday at 10pm.

Optional Extra Practice: Page 2 in Work & Energy Packet. (Unit 6 CompuSheets Answers)

### πβ 8: F 2/11 - β Positive Physics energy

Pd 8 - Assessment on Gravitation and Circular Motion TODAY!

After our assessment, we'll continue working with the β©οΈ Pivot Interactives lab "Height vs Velocity for a Puck on a Ramp." You may not be able to complete the last part of the lab until after Tuesday's lesson, so make sure everything else is completed before then.

Finally, we'll practice all we've learned about work and energy by doing β Positive Physics unit 13: energy "work" problems from the following sections:

• energy identification 1

• conservation of energy

NOTE: Positive physics uses some unconventional vocabulary:

• "KE" is kinetic energy (K).

• "GPE" is gravitational potential energy (Ug).

• "EPE" is elastic potential energy (Ue).

• "work" means POSITIVE work done by a non-conservative force.

• "loss" means NEGATIVE work by a non-conservative force.

Homework: β Positive Physics unit 13 problems due Monday at 10pm. Only completion score counts. No late work will be accepted. β©οΈ Pivot Interactives lab "Height vs Velocity for a Puck on a Ramp" is due on Tuesday at 10pm.

Optional Extra Practice: Page 2 in Work & Energy Packet. (Unit 6 CompuSheets Answers)