CBSE TEST PAPER-02 CLASS - IX BIOLOGY (Improvement in food Resources) 1. Weeds affect the crop plants by – (a) Killing of plants in field before they grow. (b) Dominating the plants to grow. (c) Competing for various resources of crops (plants) (d) All the above. 2. ‘Operation Flood’ in India refers to – (a) Controlling floods during rainy season. (b) Increase in milk production by development of co-operative dairy on a large scale. (c)Increase in fish production during floods.
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Newton’s Second Law Lab Preliminary Questions 1. When you push on an object‚ the magnitude of the force on the object directly affects it’s motion. If you push harder on the object‚ it’s motion is larger. 2. If we have a bowling ball‚ and a baseball each suspended from a different rope‚ and hit each ball with a full swing of a baseball bat‚ the ball that will have the greatest amount of change in it’s motion will be the baseball. This is true because the baseball has a smaller mass than a bowling
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Identify Laws of Motion and Thermodynamics The first example is oscillating a pendulum‚ which is categorized in the law of motion due to the object remaining in that state unless an external force is applied. The second example stating cooling food and drinks in a refrigerator is categorized in the laws of Thermodynamics due to thermalization. The third example of using the coffeemaker can be a combination of both laws due to moving touching to coffeemaker to make create an action is Law of Motion
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Isaac Newton Isaac Newton was born on December 25‚ 1642‚ in Woolsthorpe‚ England. His father died before he was born‚ and his mother mother‚ Hannah Newton‚ remarried and moved away. She left Newton to be raised by his uncle. In 1654‚ he was sent to the local grammar school‚ then he enrolled at Trinity College‚ at the University of Cambridge‚ in 1661. He received his bachelor of arts in 1665‚ and was named a fellow of the College two years later. In 1666‚ Newton made three of his greatest discoveries
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Marcus Tung Friday‚ October 5‚ 2012 Lab Report: Newton’s Second Law Trial: 1 |Mass of cart with sensors (kg) |0.877 kg | |Regression line for force vs. acceleration data | |Y= 0.8325x + 0.05480 | |
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BCA- I Physics Assignment 1 Unit I Laws of Motion 1. A man of mass 70kg stands on a weighing machine in a lift which is moving (a) upwards with a uniform speed of 10m/s. (a) downwards with a uniform acceleration of 5m/s2 . (a) upwards with a uniform acceleration of 5m/s2. What would be the readings in each case? (d)what would be the reading if lift mechanism failed and it hurtled down freely under gravity? 2. A shell of mass 0.2kg is fired by
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E104: NEWTON’S SECOND LAW OF MOTION METHODOLOGY In Part A of the experiment (Constant Mass‚ Changing Net Force)‚ place the dynamics track on the laboratory table. Make sure that it is horizontal by placing the dynamics cart on the track. If the dynamics cart does not move‚ then the track is already horizontal. Otherwise‚ make the necessary adjustments. Get the mass of the dynamics cart. Write this under m1 in Table 1. Set the first photogate at the 20-cm mark of the dynamics track and the second
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Newton`s Second Law – Lab Report Name: Tasneen Ahsan Date: 19th November‚ 2012 Purpose To show how the acceleration of an object changes when‚ the mass changes and the net force is kept constant and when the mass is the same.. Hypothesis I predict that by changing the mass of the object will result in a change in the acceleration as Newton`s second law states that the magnitude of the acceleration of any object is directly proportional to the magnitude
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Newton’s Laws First let’s get to know some history about the man behind all of this‚ Sir Isaac Newton. Sir Isaac Newton‚ the man who is responsible for what we all have come to know as the “Laws of Motion” was born on January 4‚ 1643‚ which is very often displayed as December 25‚ 1642‚ if using the older version of the Julien calendar‚ in the Helmet of Woolsthorpe‚ England. Sir Isaac Newton is believed to be one of the most influential scientists known to have ever lived. His ideas became the basis
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1405 Name(s)_____________________ HOOKE’S LAW and SIMPLE HARMONIC MOTION INTRODUCTION Any motion that repeats itself in equal intervals of time is called periodic motion. A special form of periodic motion is called Simple Harmonic Motion (SHM). Simple Harmonic Motion is defined as oscillatory motion in which the resultant force on the oscillating body at any instant is directly proportional to its displacement from the rest position and opposite in direction to its motion. For a spring
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