Reference no: EM132459978

Introduction to Mastering Physics Assignment -

1. A Welcome to Mastering!

Part A - How many squares are in this 2 x 2 grid? Note that the figure link lets you know that a figure goes along with this part. This figure is attached.

Part B - What is the magic number? Note that there is a figure also associated with this part. However, the figure for Part A may still be visible on the left. To view the figure associated with Part B, click on the figure link.

Part C - Multiple-choice questions have a special grading rule determined by your instructor. Assume that your instructor has decided to grade these questions in the following way: If you submit an incorrect answer to a multiple-choice question with n options, you will lose 1/(n-1) of the credit for that question. Just like the similar multiple-choice penalty on most standardized tests, this rule is necessary to prevent random guessing. If a multiple-choice question has five answer choices and you submit one wrong answer before getting the question correct, how much credit will you lose for that part of the question?

100%

50%

33%

25%

20%

2. Introduction to Numeric Answers

Part A - If you have a gross of items, you have 144 items. If you buy a gross of eggs, how many dozen eggs do you have?

Part B - What is the sum of 9260 and 3240?

Part C - Practice entering numbers that include a power of 10 by entering the diameter of a hydrogen atom in its ground state, d_H = 1.06 x 10^-10 m, into the answer box.

Part D - A rectangle has a length of 5.50 and a width of 12.0 m. What are the perimeter and area of this rectangle?

3. Introduction to Numeric Answers with Units

Part A - Answer the following question by entering the numeric value with appropriate units. If the length of one side of a square is 12.0 m, what is the perimeter of the square?

Part B - When numbers are very small or very large, it is convenient to either express the value in scientific notation and/or by using a prefix with the unit.

A pain-relieving pill has a mass of 0.005 g. Express the pill's mass in grams using scientific notation or in milligrams.

Part C - The weight of an object is the product of its mass, m, and the acceleration of gravity, g (where g = 9.8 m/s²). If an object's mass is m = 10 kg, what is its weight?

Part D - A car traveling with constant speed travels 150 km in 7200 s. What is the speed of the car?

Part E - Torque can be calculated by multiplying the force (N) applied at 90^o to the lever arm at a distance (m) from the pivot point (point of rotation), the compound SI unit for the torque is N · m. If the force (at 90^o to the lever arm) applied is 15 N and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?

4. Introduction to Significant Figures

Part A - Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your calculator answer would be 11.76 cm². Now suppose you are asked to enter the answer to two significant figures. (Note that if you do not round your answer to two significant figures, your answer will fall outside of the grading tolerance and be graded as incorrect.)

5. Introduction to Symbolic Answers

Part A - Similar to what you see in your textbook, you can generally omit the multiplication symbol as you answer questions online, except when the symbol is needed to make your meaning clear. For example, 1 · 10⁵ is not the same as 110⁵. When you need to be explicit, type * (Shift + 8) to insert the multiplication operator. You will see a multiplication dot (·) appear in the answer box. Do not use the symbol x. For example, for the expression ma, typing m · a would be correct, but mxa would be incorrect. Enter the expression ma.

Part B - Enter the expression 2cos²(θ) - 1, where θ is the lowercase Greek letter theta.

Part C - Enter the expression (x) + 15, where asin(x) is the inverse sine function. Alternatively, you may enter the inverse sine function in either of the following forms, which are also accepted: arcsin(x) or sin^-1(x).

Part D - Enter the expression √(2gΔy/m), where Δ is the uppercase Greek letter Delta. Note: the term Δy represents a single variable, not two separate variables multiplied together.

Part E - Enter the expression N₀e^-λt, where N₀ is N-naught (an N with a subscript zero) and λ is the lowercase Greek letter lambda.

6. Introduction to Sorting Questions

Part A - Correctly classify the given food items as either a fruit or a vegetable. If you need help, look at the hint available by clicking View Available. Drag the foods into the appropriate bins. Fruits should be placed in the left bin. Vegetables should be placed in the right bin.

7. Introduction to Ranking Questions

Part A - Each of these geometric shapes has a different number of sides. Arrange the shapes in order from the shape with the greatest number of sides to the shape with the fewest number of sides.

8. Introduction to Graphing Questions

Part A - Create a graph of y = 2x - 6.

Construct a graph corresponding to the linear equation y = 2x - 6.

9. Introduction to Vector Drawing Questions

Part A - Every morning Ann walks her dog through the park, shown as a green square on the diagram below. They start at point 1, walk one block up the street, take a turn at the corner labeled 2, and walk diagonally through the park to point 3. To return home, they walk two blocks down the street and turn right at the corner labeled 4. Draw the path 1→2→3→4→1 taken by Ann as she walks her dog. Represent each segment of Anna's walk with a vector.

Part B - The diagram below shows a force being applied on a beam. Mark the direction of moment at the fulcrum by clicking on the dot indicated by M.

10. Reviewing the Fundamentals

Part A - You are starting a new item and after reading the first part you realize you have no idea how to go about answering it. What should you do?

- Guess randomly and hope for some useful feedback.

- Request the solution immediately.

- Use the available hints.

Part B - You have been working on an item for a while and after a few missteps you've come up with an answer. However, there is one particular thing that you're not 100% sure of. What should you do?

- Check for any hints that address the part of the calculation you're unsure about.

- Return to the question after you've spoken with an instructor or classmate.

- Submit your answer and then adjust it according to any feedback you receive.

- None of the above.

Part C - You've just solved a problem and the answer is the mass of an electron, m_e = 9.11 x 10^-31. How would you enter this number into the answer box?

Part D - A friend in your class tells you that she never uses hints when doing her Mastering homework. She says that she finds the hints helpful, but when the hint asks another question it increases the chance that her score on the problem will go down. She feels like it isn't worth the risk. You reassure her that there is nothing to fear about opening a hint that asks a question. Which of the following are good reasons for your friend not to worry?

- As an incentive for thinking hard about the problem, your instructor may choose to apply a small hint penalty, but this penalty is the same whether the hint simply gives information or asks another question.

- Getting the correct answer to the question in a hint actually gives you some partial credit, even if you still can't answer the original question.

- The only way to lose additional partial credit on a hint is by using the "Request Answer" button or entering incorrect answers. Leaving the question blank will not cost you any credit.

- None of the above.

11. Getting Started: Dynamic Study Modules

Part A - What is the primary function of Dynamic Study Modules?

- Give students real-life applications of the concepts they are currently learning in class

- Allow students to collaborate with each other on assignments in Mastering

- Normalize student learning so the teacher knows what to focus on in lecture

- Assess what a student already knows, and where he or she may want to focus additional study

Part B - What is required to access Dynamic Study Modules?

- Enrollment in a course that uses Mastering with Dynamic Study Modules

- A current Mastering username and password

- Previously signing in from a desktop, if using DSM on the mobile app

- All of the above

12. Mastering Your Mindset

Part A - Which of the following describes a growth mindset, as opposed to a fixed mindset?

- Learning and growing your brain helps performance in school

- Believing your talents, abilities, and intelligence can be developed in different ways

- Challenging yourself by persisting longer with problems helps to grow your mental muscle

- All of the above

Part B - What is neuroplasticity?

- The inability to change intelligence, which is fixed from birth

- The ability to make new and stronger connections between the neurons in our brain as we learn

- Having a fixed mindset in some ways, and a growth mindset in others

Part C - How do students with a growth mindset see their mistakes?

- As reasons to give up and avoid further challenges

- As opportunities to learn and improve their brain

- As something that shouldn't happen in proper learning

Part D - How do you develop a growth mindset and embrace your mistakes?

- Repeat the question without changing your approach

- Question what went wrong and fix the problem in a new strategy

Part E - Why is the word "yet" powerful in developing a growth mindset?

- It encourages you to skip steps necessary to learn difficult concepts quickly.

- It encourages you to stop trying when you fail because you are not smart enough.

- It encourages you to continue along your learning journey, as you have not yet reached the final destination.

Part F - Which is NOT an element in developing expertise in a field?

- Trying new strategies

- Giving up

- Asking for help

- Putting forth effort

Part G - How do people with a growth mindset view and respond to challenges?

- They see challenges as opportunities to learn and push their abilities.

- They see challenges as signs their brains are getting weaker.

- They see challenges as a waste of effort and are embarrassed.

13. Introduction to Vector Notation

Part A - Using component notation, enter the vector B^→ in the answer box.

Part B - How would you express B^→ using unit vectors?

Part C - Enter the expression -2C^→ + 6D^→ in the answer box using the notation just described.

Note - All needed information and figures are in attached file.

Attachment:- Assignment File.rar