1. Power Lab Energy—Day 3 Materials Needed: Writing Utensil Folder
Notebook
Please pick up the handout on the front table!

2. Bell work and Agenda 1. What is the SI unit of work and energy?
2. What is the work done by a worker standing at a register for 5 hours?
3. What is the work done when a runner with a mass of 80 kg runs a marathon in 5 hours?
Agenda:
Power Lab
#2. Make sure they understand this is the scientific definition.

3. Q1: How are densities observed after pouring oil and water into a container?
changes color
mixes together
creates an odor
separates into layers
SC8.2.1.g DOK 2

4. Q2: What is this a picture of?
A. community
B. ecosystem
C. food chain
D. food web
SC8.3.3.a DOK 1

5. Math booster Day 3
Solar panel alpha claims to be 50% more effective at converting energy than solar panel beta. If solar panel beta can convert 100 joules of energy, how much can solar panel alpha convert?

6. Greek /Latin Meaning Sentence dynam- power, energy, strength -erg-
Greek & Latin Day 3
Greek /Latin
Meaning
Sentence
dynam-
power, energy, strength
-erg-
work
grav-
heavy, weighty
kilo-
thousand
kine-
motion

7. Objective Day 3
1. I will know (knowledge): how to set up the equipment to effectively obtain data.
2. I will know (knowledge): how to take measurements for the lab.
3. I will be able to (skill): apply the equation for work, power and energy to calculate and solve for the unknown variables involved in the experiment.

8. Bell work Day 3 -- answer
1. What is the SI unit of work and energy?
Answer : joules.
2. What is the work done by a worker standing on a register for 5 hours?
Answer: work done = zero , since there was no motion or distance traveled.
3. What is the work done when a runner with a mass of 80 kg runs a marathon in 5 hours?
Answer: work done by gravity = zero, since there was no motion or distance traveled in the direction of the gravity.

9. A1: How are densities observed after pouring oil and water into a container?
A. changes color Color does not affect density. B. mixes together The liquids will only mix together if they have the same density C. creates an odor Smell does not affect density. D. separate into layers Denser liquids will settle to the bottom, while less dense liquids will float at the top.
SC8.2.1.g DOK 2

10. A2: What is this a picture of?
A. community
A community does not show the flow of energy.
B. ecosystem
An ecosystem includes abiotic and biotic factors and does not show the flow of energy.
C. food chain
A food chain follows a single path of energy.
D. food web
A food web shows the flow of energy among plants and animals.
SC8.3.3.a DOK 1

11. Math booster Day 3
Solar panel alpha claims to be 50% more effective at converting energy than solar panel beta. If solar panel beta can convert 100 joules of energy, how much can solar panel alpha convert?
Alpha panel can put out 50% more than beta panel can.
A = 1.5B
A = 1.5(100J)
A = 150J

12. 1. Students will discuss the lab with their lab partner. 2
1. Students will discuss the lab with their lab partner Students will do the power lab.

13. Physical Science Text Book
Homework Day 3
Physical Science Text Book
Finish the Power Lab if you are not done.

14. Exit Question -- Day 3
What was the relationship between the time and the power?
Answer:
The results show that the less time students take, the more power they use. Power is inversely proportional to time.