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## Physics problems

For this assignment, solve the following questions. Note: You need to show all the calculations in your worksheet.

10.1 – Q. 29

10.2 – Q. 37

10.3 – Q. 47

10.4 – Q. 55

10.5 – Q. 65

10.6 – Q. 71

10.7 – Q. 85

10.8 – Q. 97

## Physics problems

For this assignment, solve the following questions. Note:  You need to show all the calculations in your worksheet.

Problems and Exercises

9.1 – Q. 19

9.2 – Q. 25

9.3 – Q. 35

9.4 – Q. 43

9.5 – Q. 53

9.6 – Q. 63

9.7 – Q. 77

## Physics Lab

Kinetic Energies and Momentum – A Virtual PhET Lab After completing this lab activity, the students should be able to:

• Calculate kinetic energies
• Calculate momentum and final velocities
• Write a lab report

Lab ReportThe lab report must include the following:

• Title
• Introduction
• Experimental Details or Theoretical Analysis
• Results
• Discussion
• Conclusions and Summary
• References

• This lab requires you to produce a lab report to, determine “Momentum, Final Velocities, and Kinetic Energy. This is the Title of your lab report.
• Read the relevant chapter on momentum and kinetic energy and add an Introduction.

• For this experiment, you use the Intro section of the lab. After you click the intro section of the lab, select “Velocity,” “Kinetic Energy,” and “Values” boxes (upper right-hand corner). Then, move the “Elasticity” scale to 100% elastic. Then check the box “More Data” (bottom left-hand side). Now all the values will appear on the screen.  Now you can change the mass values and the initial velocity values as per the scenario given below, and kinetic energy, momenta, and velocity values will appear on the screen. This information constitutes the Experimental Details section of the lab report. You must keep a record of all the values appearing on the screen as experimental values for the scenario. These values form part of the Results section of the lab report. Now, complete the theoretical calculations of kinetic energy, final velocities, and momenta for each scenario using relevant equations. These calculated values also form the Results section of the lab report.
• Now, you can complete the Discussion section of your lab report by comparing the values and discussing any differences in the theoretical and experimental values and any other information relevant to the experiment.
• Complete the lab report by adding a summary to the Conclusion section of your lab report.
• Submit the lab report to the relevant Canvas Dropbox

Please watch the following video to learn more about Newton’s Second Law and Momentum:Lab ScenarioSet the pink ball mass as 2 kg mass and the blue ball mass as 3kg. The position of blue ball could be -1 and pink ball could be +1. Set the initial velocity of pink ball as -1.5 m/s and that of the blue ball as +3 m/s. Run the experiment and note all the relevant experimental values.

1. Calculate the initial and final kinetic energy values for both balls separately and then the total.
2. Calculate the momenta before and after the collision for each ball.
3. Calculate the final velocity values for each ball.

## Physics problems

you will need to complete homework questions specified below. You need to complete the work and upload the file here. You need to show all the calculations in your worksheet.

8.1 – Q. 19

8.2 – Q. 25

8.3 – Q. 31

8.4 – Q. 45

8.5 – Q. 53

## Physics Lab

Spring Constant – A Virtual PhET Lab After completing this lab activity, the students should be able to:

• Conduct an experiment to determine the spring constant
• Calculate the spring constant
• Write a lab report

Lab ReportThe lab report must include the following:

• Title
• Introduction
• Experimental Details or Theoretical Analysis
• Results
• Discussion
• Conclusions and Summary
• References

• This lab requires you to produce a lab report to determine  The Spring Constant of a Spring. This is the Title of your lab report.
• Read the relevant chapter on spring constant and Hooke’s law and add an Introduction.

• For this experiment, you use the Lab section of the simulation. After you click the lab section of the simulation, select “Displacement/Natural Length,” “Mass Equilibrium,” and “Movable Line” boxes (upper right-hand corner). Then, select “Earth” and the correct gravity value will appear. Move the Damping scale to Lots extreme. This will stop the spring bouncing up and down. Now, select the Spring Constant scale to the middle (middle of the simulation).  Now you can change the Mass values as you desired, but you must have at least three different mass values and conduct the experiment that will enable you to find the spring constant by plotting a graph. Once you find the spring constant from the graph, find the masses of the two unknown objects Red and Blue. You find these masses without changing the spring constant scale, since you will use the spring constant value you found from the graph to find the unknown mass. This information constitutes the Experimental Details section of the lab report. You must keep a record of all the values appearing on the screen as experimental values for the scenario. These values also form part of the Results section of the lab report. Now, complete the theoretical calculations including the plotting of the graph. These calculated values and the graph form the Results section of the lab report.
• Now, you can complete the Discussion section of your lab report by comparing the values and discussing any differences in the theoretical and experimental values and any other information relevant to the experiment.
• Complete the lab report by adding a summary to the Conclusion section of your lab report.
• Submit the lab report to the relevant Canvas Dropbox

1. Calculate the spring constant of the spring by graph method.
2. Calculate the masses of red and blue objects.

## Physics

In this week, we discussed about the properties of sound waves and that they require a medium to travel. Movies, like 2001: A Space Odyssey, show space as deadly silent. On the other hand, Star Wars movies present booming sound effects in spcae. For the discussion this week, you will share your perspectives about movie(s) that strike a balance between science and fiction, especially about sound in outer space.

### OBJECTIVES

1. Identify a movie about Outer Space that you plan to watch or would like to watch again.
2. Look for the science facts and fiction presented in the movie, especially related to sound in outer space.
3. Share the perspectives with your class.

### DISCUSSION PROMPT

Name of the movie.

Was it filled with Science facts or fiction? Specific Examples.

Was there a balance between the science and fiction in the movie? Examples.