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:
Determine the stored energy in a spring.
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.
Physics - Unit 5
Date
Classwork
Jan 8/9
Jan 12
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 Energy Concept Builder (make sure you are logged into Physics Classroom.)
You need to complete all 3 trophies.
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 Energy with Pie Charts & Hooke’s Law Lab. Please try to come to class on time each day.
Homework for the week:
Energy Storage and Transfer Model Worksheet 1b (1-3 only) - 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 anyone that emails me that they have read and understand this new policy. Deadline to email is Friday at 3:00 pm.
This week continues our examination of energy. Here’s what we will accomplish:
Learn the equations for Kinetic and Gravitational Energy and introduce Energy Bar Charts.
Basketball Drop Lab to investigate the transfer of Energy from one form to another.
Jan 27-30
Feb 2-6
Homework for the week:
Physics Classroom “Words and Charts” (Apprentice and Master level) - due Sunday (Jan 25) at 11:59pm.
Physics Classroom “Match that Bar Graph” (Apprentice and Master level) - due Sunday (Jan 25) at 11:59pm.
Positive Physics 13.8 - due Sunday (Jan 25) at 11:59pm. HINT: For this assignment, there is NO WORK and NO LOSS for any of the problems.
Homework problems on pages 33-36 (in the packet) - due Tuesday/Wednesday Jan 27/28.
There may be a homework assignment in the packets as well. I will add that here if needed.
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. Entire packet is here:
Thurs/Fri: labquiz
Homework for the week:
Force, Work Worksheet (pages 39-40) - due Monday Feb 2.
Study for test next week. Thurs, Feb 5 & Fri, Feb 6
M - Go over Force, Work Worksheet / Power Notes / Positive Physics 13.13 in class (#1-2) Finish for hw - due by test day.
T/W - Pretend self-graded quiz & review Review Solutions!
Study for test! Thurs, Feb 5 & Fri, Feb 6
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.
Additionally, we will be using the information that you learn through this activity. It is important that you read and comprehend the instructions and given information.
Jan 13-16
Jan 20-23