assignment 6 physics

Due: Monday 5/20/24

Assignment 6.

• Chapter 34 Exercises and Problems: 24, 27, 32, 38, 39, 40, 65, 77
• Chapter 35 Exercises and Problems: 11, 12, 30, 31, 33, 34, 41
• HW6W Worksheet: Imaging and Vision Correction | Worksheet | 🧪 Solution

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NCERT Solutions for class 6 Science, Notes, Worksheets

Welcome to our class 6 Science page. In this page you can find class 6 Science ncert solutions , notes, assignments, worksheets etc. You can share the link to free Class 6 NCERT Science solutions with your classmates as all study material is free of cost.

How to use this page to learn Science

• First read and understand the notes.
• Try to go through the solved examples of the chapter you are reading
• Now it is the time to solve unsolved assignments and worksheets. You will find plenty of them here or on the respective chapter page.

Chapter 1 Components of Food

• Components of Food Class 6 Notes
• Components of Food Class 6 Worksheet
• components of food class 6 mcq
• components of food class 6 Questions and answers
• NCERT solutions for class 6 science chapter 2

Chapter 2 Sorting Materials into Group

• Sorting Materials into Group Class 6 Notes
• NCERT Solutions Sorting Materials into Group
• Sorting Materials into Group Worksheet
• Sorting Materials into groups Extra questions

Chapter 3 Separation of the substance

• Separation of the substance Class 6 Notes
• NCERT Solutions Separation of the substance
• Separation of the substance Worksheet
• Separation of Substance Extra Questions

Chapter 4 Getting to Know plants

• Getting to Know plants Class 6 Notes
• Getting to Know plants Revision Notes(download)
• Practice Worksheet Getting to Know plants
• Important Questions Getting to Know plants
• Getting to Know plants NCERT Solutions
• Extra Questions getting to know plants

Chapter 5 Body Movements

• Body Movements class 6 Notes
• NCERT Solutions Body Movements
• Important Questions Body Movements
• Practice Worksheets Body Movements
• Extra questions Class 6 Body Movements

Chapter 6 Living Organisms and its surroundings

• Living Organisms and its surroundings Class 6 Notes
• NCERT Solutions Living Organisms and its surroundings
• Living Organisms and its surroundings Worksheets
• Living Organisms and its surroundings Extra Questions

Chapter 7 Motion and Measurement of distances

• Motion and Measurement of distances Class 6 Notes
• NCERT Solutions Motion and Measurement of distances
• Motion and Measurement of distances Worksheet
• Motion and Measurement of distances Extra questions

Chapter 8 Light,Shadows and Reflection

• Light,Shadows and Reflection Notes
• NCERT Solutions for Light,Shadows and Reflection
• Light,Shadows and Reflection Practice Worksheets
• Important Questions Light,Shadows and Reflection
• Long Answer type Questions Light,Shadows and Reflection
• MCQ for Light,Shadows and Reflection

Chapter 9 Electricity & circuits

• Electricity & Circuits Class 6 Notes
• Practice Worksheets Electricity & Circuits
• Electricity & Circuits Important Questions
• NCERT Solutions Electricity & Circuits

Chapter 10 Fun with Magnets

• Fun with Magnets Class 6 Notes
• NCERT Solutions Fun with Magnets
• Fun with Magnets Questions And Answers
• Fun with Magnets Practice Worksheets

Chapter 11 Air around Us

• Air around Us Class 6 Notes
• Air around us Short Notes(download)
• NCERT Solutions Air around Us
• Practice Worksheets Air around Us
• Air around Us Practice Questions
• Extra questions Air Around Us

Deleted Chapter 2023-2024

Chapter food:where does it come from.

• CBSE Notes of Food:Where does it come from
• food where does it come from class 6 worksheet
• Practice Worksheet Food: Where does it come from
• class 6 science chapter 1 extra questions
• NCERT Solutions for Class 6 Science Chapter 1

Chapter Fibre to Fabric

• fibre to fabric class 6 Notes
• fibre to fabric class 6 worksheet with answers
• fibre to fabric class 6 mcq with answers
• fibre to fabric class 6 extra questions
• NCERT Solutions Class 6 Science Fibre to Fabric

Chapter Changes around us

• Changes around us Class 6 Notes
• Practice Worksheet Changes around us
• Important Questions Changes around us
• Changes around us NCERT Solutions
• Changes around us Extra Questions

Chapter Water

• Water class 6 Notes
• NCERT Solutions Class 6 Water
• Class 6 Water Worsheet
• Class 6 Water Extra Questions

Chapter Garbage In ,Garbage out

• Garbage In ,Garbage out Class 6 Notes
• NCERT Solutions Garbage In ,Garbage out
• Extra Questions Garbage in & Garbage out
• Garbage in & Garbage out Worksheet

Frequently asked Questions on CBSE Class 6 Science

How many chapters are there in class 6 science.

There are total 11 chapters in Class 6 Science as per the rationalized Syllabus. All the chapters are required for assessment

What is the best books for Class 6 Science?

Couple of book (a)NCERT Class 6 Maths textbook (b)NCERT Class 6 Exemplar (c)Lakhbir singh

Which is the easiest chapter of class 6 Science NCERT Text book?

Components of Food and Sorting material are the easiest chapter

Is Class 6 Science NCERT Text book Sufficient for CBSE Exams?

It is sufficient if you go through all the questions in the NCERT text book thoroughly and practice them all.However to enhance your maths skill , you can go for NCERT exemplar and other books

what is the best way to learn the concept in Class 6 Science?

First go through all the Notes and solved examples and Then do the exercises. Practice Lot of questions. The simple Mantra is Practice .Practice and Practice

what is the deleted syllabus in Class 6 Science?

Chapter Food:Where does it come from : Full chapter deleted Chapter Fibre to Fabric: Full chapter deleted Chapter Changes around us: Full chapter deleted Chapter Water: Full chapter deleted Chapter Garbage In ,Garbage out: Full chapter deleted

Practice Question

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Our Teacher Presentation Pack is a downloadable product that includes nearly 190 Microsoft PowerPoint slide decks, about 170 animations and videos in .mp4 and .gif formats, too-many-to-count stand-alone images, and a Lesson Notes page for every slide deck. The slide decks are compatible with Google Slides. We did our best to make the product ready-to-use and at the same time fully customizable. It's a great tool in the toolbox for any early-career teacher, cross-over teacher, or even veteran teacher.

QUESTION BANK

Writing good tests and quizzes for your physics class just got a whole lot easier! With The Physics Classroom's Question Bank, physics teachers can quickly put together multiple choice and free-response quizzes and tests that target concepts discussed at The Physics Classroom website. The Question Bank is available for purchase as a both a CD resource and as a Digital Download. Use of the Question Bank requires the Microsoft Word application. (Answers are NOT included on the Question Bank.)

NGSS CORNER

Our newest section, the NGSS Corner assists teachers of Physics and Physical Science in aligning their curricula with the Next Generation Science Standards. Numerous resources are identified and their alignment with the NGSS is described.

TEACHER TOOLKITS

The Teacher Toolkits provide teachers with packages of online resources (simulations, movies, animations, demonstration ideas, etc.) that are organized around a topic and a set of learning objectives. These resources, when combined with the numerous resources on our own site, allow teachers to plan high-quality, engaging instruction and to map out a curriculum that is NGSS-based.

THE LABORATORY

While you explore the approximately 150 labs here at The Laboratory, you will likely generate some questions about how they are used and how you can use them. This page, and the pages it links to, are hoped to provide some answers to those questions.

THE PHOTO GALLERY

The Photo Gallery provides teachers a toolbox of physics-relevant photos from the wealth of photos on Flickr. The Photo Gallery offers teachers three things: access to photos, organized by topic; a collection of nearly 30 galleries; and an invitation to join this exciting project of capturing and sharing physics phenomenon with a camera. Of course, students are welcome to participate as well.  

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Physics archive

Unit 1: one-dimensional motion, unit 2: two-dimensional motion, unit 3: forces and newton's laws of motion, unit 4: centripetal force and gravitation, unit 5: work and energy, unit 6: impacts and linear momentum, unit 7: torque and angular momentum, unit 8: oscillations and mechanical waves, unit 9: fluids, unit 10: thermodynamics, unit 11: electric charge, field, and potential, unit 12: circuits, unit 13: magnetic forces, magnetic fields, and faraday's law, unit 14: electromagnetic waves and interference, unit 15: geometric optics, unit 16: special relativity, unit 17: quantum physics, unit 18: discoveries and projects, unit 19: review for ap physics 1 exam.

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Classical Mechanics - Assignment 6 - Physics, Exercises of Physics

Prof Walter Lewin, Massachusetts Institute of Technology (MIT) (MA), Physics, Classical Mechanics, Assignment 6, Rotating Rigid Bodies, Rotational Kinetic Energy, Torques, Stellar Collapse, Colliding Bobs, Colliding Pucks, Surprising Bounce, Proton Collision, Kerosene Rocket.

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Problems & Exercises

1.2 physical quantities and units.

The speed limit on some interstate highways is roughly 100 km/h. (a) What is this in meters per second? (b) How many miles per hour is this?

A car is traveling at a speed of 33 m/s 33 m/s size 12{"33"" m/s"} {} . (a) What is its speed in kilometers per hour? (b) Is it exceeding the 90 km/h 90 km/h size 12{"90"" km/h"} {} speed limit?

Show that 1 . 0 m/s = 3 . 6 km/h 1 . 0 m/s = 3 . 6 km/h size 12{1 "." 0`"m/s"=3 "." "6 km/h"} {} . Hint: Show the explicit steps involved in converting 1 . 0 m/s = 3 . 6 km/h. 1 . 0 m/s = 3 . 6 km/h. size 12{1 "." 0`"m/s"=3 "." "6 km/h"} {}

American football is played on a 100-yd-long field, excluding the end zones. How long is the field in meters? (Assume that 1 meter equals 3.281 feet.)

Soccer fields vary in size. A large soccer field is 115 m long and 85 m wide. What are its dimensions in feet and inches? (Assume that 1 meter equals 3.281 feet.)

What is the height in meters of a person who is 6 ft 1.0 in. tall? (Assume that 1 meter equals 39.37 in.)

Mount Everest, at 29,028 feet, is the tallest mountain on the Earth. What is its height in kilometers? (Assume that 1 kilometer equals 3,281 feet.)

The speed of sound is measured to be 342 m/s 342 m/s size 12{"342"" m/s"} {} on a certain day. What is this in km/h?

Tectonic plates are large segments of the Earth’s crust that move slowly. Suppose that one such plate has an average speed of 4.0 cm/year. (a) What distance does it move in 1 s at this speed? (b) What is its speed in kilometers per million years?

(a) Refer to Table 1.3 to determine the average distance between the Earth and the Sun. Then calculate the average speed of the Earth in its orbit in kilometers per second. (b) What is this in meters per second?

1.3 Accuracy, Precision, and Significant Figures

Express your answers to problems in this section to the correct number of significant figures and proper units.

Suppose that your bathroom scale reads your mass as 65 kg with a 3% uncertainty. What is the uncertainty in your mass (in kilograms)?

A good-quality measuring tape can be off by 0.50 cm over a distance of 20 m. What is its percent uncertainty?

(a) A car speedometer has a 5.0 % 5.0 % size 12{5.0%} {} uncertainty. What is the range of possible speeds when it reads 90 km/h 90 km/h size 12{"90"" km/h"} {} ? (b) Convert this range to miles per hour. 1 km = 0.6214 mi 1 km = 0.6214 mi size 12{"1 km" "=" "0.6214 mi"} {}

An infant’s pulse rate is measured to be 130 ± 5 130 ± 5 size 12{"130" +- 5} {} beats/min. What is the percent uncertainty in this measurement?

(a) Suppose that a person has an average heart rate of 72.0 beats/min. How many beats does he or she have in 2.0 y? (b) In 2.00 y? (c) In 2.000 y?

A can contains 375 mL of soda. How much is left after 308 mL is removed?

State how many significant figures are proper in the results of the following calculations: (a) 106 . 7 98 . 2 / 46 . 210 1 . 01 106 . 7 98 . 2 / 46 . 210 1 . 01 size 12{ left ("106" "." 7 right ) left ("98" "." 2 right )/ left ("46" "." "210" right ) left (1 "." "01" right )} {} (b) 18 . 7 2 18 . 7 2 size 12{ left ("18" "." 7 right ) rSup { size 8{2} } } {} (c) 1 . 60 × 10 − 19 3712 1 . 60 × 10 − 19 3712 size 12{ left (1 "." "60" times "10" rSup { size 8{ - "19"} } right ) left ("3712" right )} {} .

(a) How many significant figures are in the numbers 99 and 100? (b) If the uncertainty in each number is 1, what is the percent uncertainty in each? (c) Which is a more meaningful way to express the accuracy of these two numbers, significant figures or percent uncertainties?

(a) If your speedometer has an uncertainty of 2 . 0 km/h 2 . 0 km/h size 12{2 "." 0" km/h"} {} at a speed of 90 km/h 90 km/h size 12{"90"" km/h"} {} , what is the percent uncertainty? (b) If it has the same percent uncertainty when it reads 60 km/h 60 km/h size 12{"60"" km/h"} {} , what is the range of speeds you could be going?

(a) A person’s blood pressure is measured to be 120 ± 2 mm Hg 120 ± 2 mm Hg size 12{"120" +- 2" mm Hg"} {} . What is its percent uncertainty? (b) Assuming the same percent uncertainty, what is the uncertainty in a blood pressure measurement of 80 mm Hg 80 mm Hg size 12{"80"" mm Hg"} {} ?

A person measures his or her heart rate by counting the number of beats in 30 s 30 s size 12{"30"" s"} {} . If 40 ± 1 40 ± 1 size 12{"40" +- 1} {} beats are counted in 30 . 0 ± 0 . 5 s 30 . 0 ± 0 . 5 s size 12{"30" "." 0 +- 0 "." 5" s"} {} , what is the heart rate and its uncertainty in beats per minute?

What is the area of a circle 3 . 102 cm 3 . 102 cm size 12{3 "." "102"" cm"} {} in diameter?

If a marathon runner averages 9.5 mi/h, how long does it take him or her to run a 26.22-mi marathon?

A marathon runner completes a 42 . 188 -km 42 . 188 -km size 12{"42" "." "188""-km"} {} course in 2 h 2 h size 12{2" h"} {} , 30 min, and 12 s 12 s size 12{"12"" s"} {} . There is an uncertainty of 25 m 25 m size 12{"25"" m"} {} in the distance traveled and an uncertainty of 1 s in the elapsed time. (a) Calculate the percent uncertainty in the distance. (b) Calculate the uncertainty in the elapsed time. (c) What is the average speed in meters per second? (d) What is the uncertainty in the average speed?

The sides of a small rectangular box are measured to be 1 . 80 ± 0 . 01 cm 1 . 80 ± 0 . 01 cm size 12{1 "." "80" +- 0 "." "01"" cm"} {} , {} 2 . 05 ± 0 . 02 cm, and 3 . 1 ± 0 . 1 cm 2 . 05 ± 0 . 02 cm, and 3 . 1 ± 0 . 1 cm size 12{2 "." "05" +- 0 "." "02"" cm, and 3" "." 1 +- 0 "." "1 cm"} {} long. Calculate its volume and uncertainty in cubic centimeters.

When non-metric units were used in the United Kingdom, a unit of mass called the pound-mass (lbm) was employed, where 1 lbm = 0 . 4539 kg 1 lbm = 0 . 4539 kg size 12{1" lbm"=0 "." "4539"`"kg"} {} . (a) If there is an uncertainty of 0 . 0001 kg 0 . 0001 kg size 12{0 "." "0001"`"kg"} {} in the pound-mass unit, what is its percent uncertainty? (b) Based on that percent uncertainty, what mass in pound-mass has an uncertainty of 1 kg when converted to kilograms?

The length and width of a rectangular room are measured to be 3 . 955 ± 0 . 005 m 3 . 955 ± 0 . 005 m size 12{3 "." "955" +- 0 "." "005"" m"} {} and 3 . 050 ± 0 . 005 m 3 . 050 ± 0 . 005 m size 12{3 "." "050" +- 0 "." "005"" m"} {} . Calculate the area of the room and its uncertainty in square meters.

A car engine moves a piston with a circular cross section of 7 . 500 ± 0 . 002 cm 7 . 500 ± 0 . 002 cm size 12{7 "." "500" +- 0 "." "002"`"cm"} {} diameter a distance of 3 . 250 ± 0 . 001 cm 3 . 250 ± 0 . 001 cm size 12{3 "." "250" +- 0 "." "001"`"cm"} {} to compress the gas in the cylinder. (a) By what amount is the gas decreased in volume in cubic centimeters? (b) Find the uncertainty in this volume.

1.4 Approximation

How many heartbeats are there in a lifetime?

A generation is about one-third of a lifetime. Approximately how many generations have passed since the year 0 AD?

How many times longer than the mean life of an extremely unstable atomic nucleus is the lifetime of a human? (Hint: The lifetime of an unstable atomic nucleus is on the order of 10 − 22  s 10 − 22  s size 12{"10" rSup { size 8{ - "22"} } " s"} {} .)

Calculate the approximate number of atoms in a bacterium. Assume that the average mass of an atom in the bacterium is ten times the mass of a hydrogen atom. (Hint: The mass of a hydrogen atom is on the order of 10 − 27  kg 10 − 27  kg size 12{"10" rSup { size 8{ - "27"} } " kg"} {} and the mass of a bacterium is on the order of 10 − 15  kg. 10 − 15  kg. size 12{"10" rSup { size 8{ - "15"} } "kg"} {} )

Approximately how many atoms thick is a cell membrane, assuming all atoms there average about twice the size of a hydrogen atom?

(a) What fraction of Earth’s diameter is the greatest ocean depth? (b) The greatest mountain height?

(a) Calculate the number of cells in a hummingbird assuming the mass of an average cell is ten times the mass of a bacterium. (b) Making the same assumption, how many cells are there in a human?

Assuming one nerve impulse must end before another can begin, what is the maximum firing rate of a nerve in impulses per second?

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Royals' Michael Massey Begins Rehab Assignment, Progressing Towards Return

Mathey gibson | jun 19, 2024.

• Kansas City Royals

Royals second baseman Michael Massey has started his rehab assignment with Triple-A Omaha as he works his way back from a low back ligament sprain.

After receiving an injection on May 31, Massey has responded well to treatment and has been cleared for baseball activities.The length of his rehab assignment has not been determined yet, but he may only need two or three games with Omaha to regain his timing at the plate.

In a recent rehab game on Tuesday, Massey went 1-for-5 with two strikeouts and a run scored.

Massey's performance in the 2024 regular season has been notable, with 102 at-bats resulting in 17 runs scored and 30 hits, including 6 home runs and 23 RBIs. His batting average stands at .294, with an on-base percentage of .306 and an OPS of .835.

The Royals have a 19-10 record with him in the lineup and a 22-23 record without him. Kansas City is hoping his return has a significant impact, potentially slotting him into the 5 or 6-hole in the batting order.

Despite his injury, Massey's popularity remains evident, as he was still the third-leading vote-getter in the All-Star Game in the American League at second base.

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DePaul University dismisses biology professor after assignment tied to Israel-Hamas war

DePaul University adjunct professor Anne d’Aquino speaks to reporters with pro-Palestinian demonstrators standing behind her outside the North Side university’s quad, Thursday, June 6, 2024. (Jessica Ma/Chicago Sun-Times via AP)

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CHICAGO (AP) — DePaul University said it dismissed a part-time biology instructor after she gave an optional assignment related to the Israel-Hamas war.

Anne d’Aquino told students in May that they could write about the impact of “genocide in Gaza on human health and biology.” The theme of the spring class at the Chicago school was how microorganisms cause disease.

DePaul said some students “expressed significant concern” about politics in a science class.

“We investigated the matter, spoke with the faculty member, and found it had negatively affected the learning environment by introducing extraneous political material that was outside the scope of the academic subject as outlined in the curriculum,” DePaul said Friday in a statement.

The school noted an email with the assignment expressed support for people “resisting the normalization of ethnic cleansing.”

“The class was provided a new instructor, and the faculty member has been released from their appointment as a part-time faculty member,” DePaul said.

D’Aquino is appealing her dismissal.

About 50 people protested last Thursday in support of her, waving Palestinian flags, the Chicago Sun-Times reported.

“My termination was a breach of my academic freedom and another example of this administration’s efforts to twist any discussions of Palestine and Palestinian liberation language into false claims of antisemitism,” d’Aquino said at the demonstration.

She said the assignment was relevant, noting that scientists have warned about the spread of disease in Gaza due to malnutrition and a lack of water and adequate sanitation.