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Physics - Forum

Ask, Answer, Discuss your school Physics questions. Share Study Resources such as Documents, Images, Videos and links.

Physics - Forum

THE RIGHT MENTOR

Experienced Eminent Educator

Apr 19, 2022

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THE RIGHT MENTOR

CBSE 8 - SCIENCE - SOUND - Revision Assignment

1. What are the factors on which speed of sound depends on? 2. Sound cannot travel through vacuum. Explain why. 3. What is noise? How is it different from of music? 4. Voice of a woman is shriller than that of a man. Explain. 5. Difine the following terms: a) Sound b) Frequency c) Amplitude

Feb 25, 2022

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What is wind

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Supraja Ganapam

Work and Energy

The work done by the force on a moving body of mass 10 kg is 100 joules. if average velocity of the body during this incident is 5 m/s,What will be the change in velocity of the body?

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AMAR NATH REDDY .M

The following table gives the life times of 400 neon lamps:

Aug 31, 2021

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AMAR NATH REDDY .M

Derive Newton's Third Law of Motion From Newton's Second Law of Motion

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Info@therightmentor.com

AREEF PHYSICS KOKIES

Introduction to refraction of light at curved surfaces,https://youtu.be/Rd5L3S-p6fY

Jul 08, 2021

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The distance between two stations is 240 km. A train takes 4 hours to cover this distance. Calculate the speed of the train.

CBSE | NCERT Solutions | Question Bank | Science | Physics | Grade 7 | MOTION AND TIME

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The basic unit of speed is: (i) km/min (ii) m/min (iii) km/h (iv) m/s

CBSE | NCERT Solutions |MCQ | Question Bank | Science | Physics | Grade 7 | MOTION AND TIME

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The odometer of a car reads 5732 km when the clock shows the time 08:30 AM. What is the distance moved by the car, if at 08:50 AM...

Question: The odometer of a car reads 57321 km when the clock shows the time 08:30 AM. What is the distance moved by the car, if at 08:50 AM, the odometer reading has changed to 57336.0 km? Calculate the speed of the car in km/min during this time. Express the speed in km/h also. CBSE | NCERT Solu

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AMAR NATH REDDY .M

One-half of a convex lens is covered with a black paper. Will this lens produce a complete image of the object? Verify your answers experime

One-half of a convex lens is covered with a black paper. Will this lens produce a complete image of the object? Verify your answers experimentally? Explain your observations. Hint: If the top half portion of the convex lens is covered, we are actually blocking half of the coming rays incide

Sep 28, 2022

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Info@therightmentor.com

NCERT | CBSE | Grade 6 | Science | Physics | Free Online Objective Tests

NCERT | CBSE | Grade 9 | Science | Assessments | Chapter Wise | Free Online Quiz CBSE Class 6 Science - Water Quiz CBSE Class 6 Science - Sorting Materials Into Groups - Quiz CBSE Class 6 Science - Separation of Substances - Quiz CBSE Class 6 Science - Food: Where Does It Come From - Quiz

Feb 03, 2022

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Info@therightmentor.com

CBSE 7 Science - Online Assessments

NCERT | CBSE | Grade 7 | Science | Physics | Chemistry | Biology | Assessments | Chapter Wise | Online | Offline Chapter 1: Nutrition in Plants Chapter 2: Nutrition in Animals Chapter 3: Fibre to Fabric Chapter 4: Heat Chapter 5: Acids, Bases and Salts Chapter 6: Physical and Chemical Ch

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The Right Mentor

Dec 04, 2021

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AMAR NATH REDDY .M

Give five examples of data that you can collect from your day-to-day life.

Give five examples of data that you can collect from your day-to-day life.

Aug 31, 2021

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AMAR NATH REDDY .M

Derive Newton's First Law of Motion From Newton's Second Law of Motion

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AREEF PHYSICS KOOKIES

Physics

Refraction of light at curved surfaces https://youtu.be/vjWwFjMia1g Tag

Jul 08, 2021

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Suppose the two photographs, shown in fig. 13.1 and fig. 13.2 of NCERT had been taken at an interval of 10 seconds. If a distance of 100 ...

Question: Suppose the two photographs, shown in fig. 13.1 and fig. 13.2 of NCERT had been taken at an interval of 10 seconds. If a distance of 100 metres is shown by 1 cm in these photographs, calculate the speed of the blue car. CBSE | NCERT Solutions | Question Bank | Science | Physics | Grade 7

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Which of the following relations is correct? (i) Speed = Distance Time (ii) Speed = Distance/Time (iii)Speed – Time/Distance ...

Question: Which of the following relations is correct? (i) Speed = Distance Time (ii) Speed = Distance/Time (iii)Speed – Time/Distance (iv)Speed = 1/Distance Time CBSE | NCERT Solutions | Question Bank | Science | Physics | Grade 7 | MOTION AND TIME

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A simple pendulum takes 32s to complete 20 oscillations, what is the time period of the pendulum?

CBSE | NCERT Solutions | Question Bank | Science | Physics | Grade 7 | MOTION AND TIME

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Info@therightmentor.com

CBSE 8 Science - Friction - Revision Assignment

NCERT | CBSE | Grade 8 | Science | Physics | Friction | Revision Assignment | Chapter Level 1. Why are wheels of vehicles made circular? 2. Why does a matchstick catch fire when rubbed on the rough surface of the box? 3. What is the cause of friction? 4. What is the direction of force of friction

Feb 28, 2022

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THE RIGHT MENTOR

CBSE 10 Science - BiologyFree Online Tests

Heridity And Evolution 1 https://online-test.classplusapp.com/?testId=61f41795647264bb744cb4df

Jan 29, 2022

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Info@therightmentor.com

CBSE 8 Science - Online Assessments

NCERT | CBSE | Grade 8 | Science | Physics | Chemistry | Biology | Assessments | Chapter Wise | Online | Offline Chapter 1: Crop Production and Management Chapter 2: Microorganisms: Friend and Foe Chapter 3: Synthetic Fibres and Plastics Chapter 4: Materials: Metals and Non-Metals Chapter 5: Co

Jan 08, 2022

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Why is blood considered to be Connective tissue??

Why is blood considered to be Connective tissue??

Sep 06, 2021

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AMAR NATH REDDY .M

Explain Galileo's Experiments on inclined planes.

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Physics - Force And Newton's Laws Of Motion - Speed Notes

Force : Push or pull is called Force. Example: We push or pull to open a door. Effects of Force • Force can change the shape and size of an object. • Force can move a stationary object. • Force can change the speed of a body. • Force can stop a moving body. • Force can change the direction o

Aug 11, 2021

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A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered ...

A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered by the car is: (i) 100 km (ii) 25 km (iii) 15 km (iv) 10 km CBSE | NCERT Solutions | Question Bank | Science | Physics | Grade 7 | MOTION AND TIME

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A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered ...

Question: A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered by the car is: (i) 100 km (ii) 25 km (iii) 15 km (iv) 10 km CBSE | NCERT Solutions | Question Bank | Science | Physics | Grade 7 | MOTION AND TIME

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Salma takes 15 minutes from her house to reach her school on a bicycle. If the bicycle has a speed of 2 m/min, calculate the distance ...

Question: Salma takes 15 minutes from her house to reach her school on a bicycle. If the bicycle has a speed of 2 m/min, calculate the distance between her house and the school. CBSE | NCERT Solutions | Question Bank | Science | Physics | Grade 7 | MOTION AND TIME

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Which of the following are not correct? (i) The basic unit of time is second. (ii) Every object moves with a constant speed. (iii) Distances

Which of the following are not correct? (i) The basic unit of time is second. (ii) Every object moves with a constant speed. (iii) Distances between two cities are measured in kilometers. (iv) The time period of a given pendulum is not constant. (v) The speed of a train is expressed in m/h CBSE |

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