Class 8 Math Chapter 12 Question Answer Lyrics
06.05.2021
Rs Aggarwal for Class 7 Math Chapter 12 - Simple Interest
Get Revision notes of Class 8 Math Chapter 12 Question Answer Lyrics Class 8 th Mathematics Chapter 1 to 16 to score good marks in your Exams. Our notes of Chapter 1 to 16 are prepared by Maths experts in an easy to Answer 8 12 Question Class Lyrics Math Chapter Class 8 Math Chapter 12 Question Answer Lyrics remember format, covering all syllabus of CBSE, KVPY, NTSE, Olympiads, NCERT & other Competitive Exams.� Class 8 Math Chapter 12 Question Answer Lyrics Studying in Grade 6th to 12th? Get one to one academic counselling from IITians or Medical Answer 8 Chapter Question Math 12 Class Lyrics Professionals.� These free Math notes for Class 8 seek to help deserving students excel 12 Lyrics Class Answer 8 Math Question Chapter in their current studies as well as lay a proper foundation for the study of Mathematics in higher classes. Class 8 Math Topics. myboat315 boatplans Chapter. myboat315 boatplans Chapter. 1. Rational Numbers. Rs Aggarwal Solutions for Class 8 Math Chapter 12 Circles are provided here with simple step-by-step explanations. These solutions for Circles are extremely popular among Class 8 students for Math Circles Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers Class 8 Math Chapter 12 Question Answer Lyrics Class 8 Math Chapter 12 Question Answer Lyrics from the Rs Aggarwal Book of Class 8 Math Chapter 12 are provided here for Class 8 Math Chapter 12 Question Answer Lyrics you for free. You will also love the ad-free experience on Meritnation�s Rs Aggarwal Solutions. All Rs Aggarwal Solutions for class Class 8 Math are prepared by experts and are % accurate. Page No Questi. CBSE Class 8 Maths All Exercise Questions with Solutions to help you to revise complete Syllabus and Score More marks.� Class 8 Maths Chapter 3 Understanding quadrilaterals. Geometry Class 8 Math Chapter 12 Question Answer Lyrics is another topic that is going to be important for advanced math classes. This chapter will introduce you to the basics of a quadrilateral, a polygon with 4 sides. A 8 Chapter Question Math 12 Lyrics Class Answer Question Lyrics Math Class Chapter 12 8 Answer cube-shaped object formed by connecting various line segments is called a polygon and then are various shapes in polygons.
Question 1. Fill in the blanks. Solution: a relative motion b smoothness or irregularities or nature c heat d reduces e less. Question 2. Four children were asked to arrange forces due to rolling, static and sliding frictions in decreasing order.
Their arrangements are given below. Choose the correct arrangement. Question 3. Alida runs her toy car on a dry Class 8 Math Chapter 12 Question Answer Lyrics marble floor, wet marble floor, newspaper and towel spread on the floor. The force of Class 8 Math Chapter 12 Question Answer Lyrics friction acting on the car on different surfaces in increasing order will be a wet marble floor, dry marble Cbse Class 8 Maths Chapter 2 Question Answer floor, newspaper and towel.
Answer: a wet marble floor, dry marble floor, newspaper Class 8 Math Chapter 12 Question Answer Lyrics and towel. Question 4. Suppose your writing desk is tilted a little. A book kept Class 8 Math Chapter 12 Question Answer Lyrics on it starts sliding down. Show the direction of frictional force acting on it. Answer: Frictional Class 8 Math Chapter 12 Question Answer Lyrics force will act upward, i. Question 5. You spill a bucket of soapy water on a Class 8 Math Chapter 12 Question Answer Lyrics marble floor accidentally.
Would it make it easier or more difficult for you to walk on the floor? Answer: The layer of soap makes the floor smooth due to which the friction is reduced. This makes the floor slippery and the foot cannot make a proper grip on the floor. Therefore it is difficult to walk on a soapy floor. We may slip on the floor. Question 6. Explain why sportsmen use shoes with spikes. Answer: Sportsmen use shoes with spikes to increase the friction between shoes and the surface.
So the shoes with Class 8 Math Chapter 12 Question Answer Lyrics Class 8 Math Chapter 12 Question Answer Lyrics spikes do not slip while the sportsmen run and play. Question 7. Iqbal has to push a lighter box and Seema has to push a similar heavier box on the same Class 8 Math Chapter 12 Question Answer Lyrics floor. Who will have to apply a larger force and why? Answer: A heavy object produces more friction as it is pressed hard against the opposite surface.
So Seema will have Question Answer Lyrics Chapter 12 Class Math 8 to apply a larger force. Question 8. Explain why sliding friction is less than static friction. Answer: Class 8 Math Chapter 12 Question Answer Lyrics The sliding friction is less than static friction because the sliding object get less time to interlock into the contact points on the floor.
So it is somewhat easier to move an object already in motion than to get it started. Question 9. Give examples to Class 8 Math Chapter 12 Question Answer Lyrics show that friction is both a friend and a foe. Answer: Some points are given below Class 8 Math Chapter 12 Question Answer Lyrics Class 8 Math Chapter 12 Question Answer Lyrics which show that friction is both a friend and a foe:. Question Explain why objects moving in fluids must have special shapes.
Answer: The objects moving in fluids must have a Class 8 Math Chapter 12 Question Answer Lyrics special shape to overcome the fluid friction acting on them. Efforts are therefore made to minimise the friction, so objects are given special shape having Class 8 Math Chapter 11 Question Answer Mp3 pointed fronts with little broader middle Class Answer Lyrics 12 Math Chapter 8 Question portion which gets tapered at the back called streamlined.
You observe that it stops after moving for some distance. Repeat this activity pushing the book from the opposite direction [Fig. Does the Chapter Answer 12 Class Question 8 Math Lyrics book stop this time, too? Can you think of an explanation? Can we say that a force must be acting on the book opposing its motion? This force is called the force of friction. Friction opposes relative motion between the surfaces of the book and the Question 8 Answer Chapter Class 12 Math Lyrics table Solution: Yes, the book stops this time too.
After sliding for some time, the book stops. Yes, we can say that a force must be acting on the book opposing its motion. Pull the brick by a spring balance Fig. You need to apply some force. Note Class 8 Math Chapter 12 Question Answer Lyrics down the reading on the spring balance when the brick just begins to move.
It Class 8 Math Chapter 12 Question Answer Lyrics gives you a measure of the force of friction between the surface of the brick and the floor. Now wrap a piece of polythene around the brick and repeat the activity. Do you observe any difference in the readings of the spring balance in the above two cases?
What might be the reason for this difference? Repeat this activity by wrapping a piece Lyrics Math Answer Chapter Class Question 12 8 of jute bag around the brick. What do you observe? Solution: It is observed that Class 8 Math Chapter 12 Question Answer Lyrics the reading of the spring balance in the case when brick is wrapped with a piece of poly thene is less than the other cases.
The reason for this difference could be that in the first case, since the brick surface in contact with the ground is rough, the surface gets greater force of friction. But in second case, when the brick is Class 8 Math Chapter 12 Question Answer Lyrics Class 8 Math Chapter 12 Question Answer Lyrics wrapped with polythene, the surface gets smoother. Hence, less frictional force is required to move it. By Class 8 Math Chapter 12 Question Answer Lyrics wrapping a piece of jute bag around the brick, it is observed that the reading of spring balance is more than the second case, when the brick was wrapped with Math 12 Question Lyrics Class Answer 8 Chapter polythene.
You may use a wooden board supported by bricks, or books. Put a mark with Class 8 Math Chapter 12 Question Answer Lyrics a pen at any point A on the inclined plane. Now let a pencil cell move down from this point.
How far does it move on the table before coming to rest? Note down the distance. Now spread a piece of cloth over the table. Make sure that there are no wrinkles in the cloth. Try the activity again [Fig. The pencil cell covers different distances on different surfaces Repeat this activity by spreading a thin layer of sand over the table. Maintain the same slope throughout the activity.
Solution: The distance covered by the pencil cell is different every time because of the different amounts of friction provided by different surfaces. The distance covered with a thin layer of sand is least, as this surface provides the maximum friction. Place them parallel to each other on a table. Place a Class 8 Math Chapter 12 Question Answer Lyrics thick book over it Fig. Now push the book. You observe the pencils rolling as Question 8 12 Class Answer Math Chapter Lyrics the book moves. Do you feel it easier to move the book in this way than to slide it? Do you think that resistance to the motion of the book has been reduced?
Have you seen heavy machinery being moved by placing logs under it? Solution: It Class 8 Math Chapter 12 Question Answer Lyrics Class 8 Math Chapter 12 Question Answer Lyrics is observed that the book moves efficiently when placed on cylindrical pencils or rollers.
It can be concluded that rolling friction is smaller than the sliding friction. Define friction. Answer: Friction is the force which resists the motion of a body, while moving on a surface.
What is meant by sliding friction? Answer: When one surface is sliding over the other, sliding friction comes into play. When does static friction come into play? Answer: Static friction comes into play to counter balance the applied force on the body. What are lubricants? Answer: The substances which reduce friction are called lubricants.
What is rolling friction? Answer: When one body rolls over the surface of another body, the resistance to its motion is called the rolling friction. What are fluids? Answer: Fluids is the common name given to gases and liquids.
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