Honors Physics - Unit 5
Work and Energy
This unit focuses on the ideas of work and energy. We will learn what physicists mean by “work” and how work changes the energy of an object though the Work-Energy Theorem. We will use the Law of Conservation of Energy to show how energy is always conserved in a system but can change forms.
BY THE END OF THIS UNIT, you should be able to:
define work and energy
calculate an object’s kinetic and/or potential energy.
use the work energy theorem to solve problems and understand the connection between work and kinetic energy.
Use the Law of Conservation of Energy to solve problems in which energy is conserved but changes form.
understand how to use components in the x- and y-direction to calculate forces on an inclined plane
Date
Jan 20-23
Jan 27-30
Feb 2-6
Classwork
Homework
I am out with the Robotics team. You will be given a handout. You may work with another person, but your answers may be different. I am grading for correct answers.
We will be using the information that you learn through this activity on a lab later in the week. It is important that you read and comprehend the instructions and given information.
From previous science classes, you should be familiar with three of the basic types of Energy…..Kinetic (energy of motion), Graviational Potential (energy of position), and Elastic (energy of spring).
Click here for Name That Energy Concept Builder (make sure you are logged into Physics Classroom.)
Complete all 3 trophies to earn credit.
Click here for Words and Energy Bar Charts. Complete any TWO levels to earn credit.
Jan 13 - 16
This week we will be learning about the properties of springs, potential energy, and we’ll hopefully have time to start investigating how energy is lost……or is it?
We will be doing several labs this week: Intro to Forces and Hooke’s Law. Please try to come to class on time each day.
Homework for the week:
Energy Storage and Transfer Model Worksheet 1b - due next class
Positive Physics 13.11 (1 and 2) - due Sunday at 11:00 pm.
Please read: On test day (not on my radar yet), you will turn in the notes for this unit. Keep up with the packets and complete all your daily work there. Completion of all the daily work and homework, a valiant effort at neatness, and a serious effort at lab experiments will count as a quiz grade. Two bonus points to any student that emails me confirming that they have read and understand this new policy.
Jan 8/9
This week we will start off by deriving the equations for Kinetic and Potential Energy. Then we’ll talk about LOL charts, work and conservation of energy.
Homework this week (we will also work on some of these during class)
Physics Classroom: LOL Charts for Work Due Jan 25 11:59 pm.
Worksheet 2: Hooke’s Law and Elastic Energy
Worksheet 3: Qualitative Energy Storage & Conservation with Bar Graphs
Worksheet 4: Quantitative Energy Calculations & Energy Conservation
Physics Classroom Up and Down with Energy Master & Wizard levels Due Jan 25 11:59 pm.
Links: Universe&More
HEADS UP for Next week!
On Tues/Wed next week (Jan 27 & 28) we will try a LAB QUIZ - yes, that’s right….a lab…that is also a quiz. You will be randomly paired with another person and you will use your knowledge from our previous lab activities, notes and homework assignments to solve an energy problem. This activity is open notes. If you are out, you will have to complete the lab/quiz after school one day. Please try to be in class.
We didn’t get to meet on Monday because of the weather. Because of this, the “LAB/QUIZ QUIZ/LAB” will has been bumped to Thurs/Fri.
On Tues/Wed and do a few more notes/concepts. New notes will be posted here.
Thurs/Fri: labquiz
Homework for the week:
Force, Work, Kinetic Energy Worksheet (pages 40-42 in packet) - Due Monday Feb 2
Make sure packet is ready to turn in.
Study for test next week. (Feb 5/6 - Thurs/Fri)
M - Notes on Power/Positive Physics 13.13 (in class/groups….finish for homework)
T/W - Go over ALL homework as needed. Review & self-graded quiz (not for a grade….just for practice).
Th/F - Test
Homework for the week:
Study for the test and PosPhysics 13.3 - due BEFORE test. Review Solutions (Number 8 should be 1.45m, not .45m….shout out to Caroline!)
Jan 12