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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Three Laws of Motion Sir Isaac Newton first introduced his three laws in 1686. Newton’s Three Laws of Motion not only improved math and science all over the world‚ but they played a major role in the development of human beings giving us a better understanding of the world in which we live and the laws that each and every one of us follow. Newton’s first law is law of inertia‚ which is a restatement of Galileo’s idea‚ an object in rest stays in rest or an object in motion stays in motion unless acted
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Incline Lab Purpose – The purpose of this experiment was to find how position and time are related to a ball on an incline. Data – 7 Books X (cm) | Trial 1 (s) | Trial 2 (s) | Trial 3 (s) | Average (s) | 10 | 0.336 | 0.3654 | 0.3434 | 0.3479 | 15 | 0.3952 | 0.4262 | 0.43 | 0.4171 | 50 | 0.9127 | 0.8846 | 0.8936 | 0.8971 | 75 | 1.1257 | 1.1178 | 1.1322 | 1.1252 | 100 | 1.320 | 1.2788 | 1.2979 | 1.2989 | 125 | 1.4924 | 1.4966 | 1.4766 | 1.4885 | 4 Books X (cm) | Trial 1 (s) |
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[pic] Laboratory 1 Simple Pendulum Motion By Ryan Williams Foundation Degree Mechanical Engineering Introduction In Mechanics and Physics‚ simple harmonic motion (SHM) is a periodic motion that is neither driven on damped by external forces. An object in simple harmonic motion experiences a net force which relates to Hooke’s law. Hooke’s law states “Force is directly proportional to the displacement from the equilibrium position and acts
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Analyzing Uniform Circular Motion Group Names: Zixuan He，Wendy Chen Course: SPH4U1 Teacher: Ms.Kang Due Date: 10/20/ 14 Experimental Investigation of the relationship between centripetal force(Fc) and velocity. In this lab‚ students need to design an experimental about the circular motion and measure the value of the centripetal force Equipment: A rubber stopper A straw Masses with 50g
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The research of Chinese monetary policy influenced on real estate market I. Introduction Literature Review (an overview of relevant concepts and theories) A. Real estate and housing market. 1. The concept of real estate 2. Housing market B. Basic principles of monetary policy and its effects. 1. The effectiveness of monetary policy 2. Principles of the transmission mechanism of monetary policy 3. The analysis of monetary policy plays a crucial role in the housing market II. Methodology
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LEYLA MIRAY KAYA Motion Study of Gilbreths in Surgery Frank and Lillian Gilbreth are best-known for their motion study on bricklaying. However they did many other studies on various areas. They have motion studies for athletes‚ pianists ‚ book keepers and fencers. All of these people were photographed when they were in action. Then those actions were divided into small micro motions to observe the unnecessary movements to eliminate. Surgeons were those people that Gilbreths studied on to improve
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Projectile Motion By Kaneisha Winch Aim: To investigate whether there is a relationship between the horizontal velocity and vertical velocity by using a 7.5 cm baseball in projectile motion. Hypothesis: There is no relationship between the horizontal and vertical velocity. No matter how fast the horizontal velocity‚ the vertical velocity will remain the same. This has no relation to the size or mass of the ball. Materials: • a baseball with a diameter of approx. 7.5 cm • a tape measurer • a surface
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in all directions. The knee joint is a compound condylar synovial joint and allows for flexion and extension of the leg. In this experiment the angle‚ angular velocity‚ and the angular acceleration of the knee and hip were analyzed in oscillatory motion. In the first set of experiments‚ the independent oscillation of the hip and knee were isolated and observed. Then the oscillation of these joints was viewed in conjunction while a subject walked‚ speed walked‚ ran‚ and walked on their tip toes.The
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to a number of positive developmental outcomes. Positive and consistent care giving has the potential to compensate for factors that have a detrimental impact on children‚ such as poverty and its associated risk factors. In other words‚ children have much better outcomes if their family lives are stable‚ despite the overwhelming influence of poverty and associated risk factors. On the contrary‚ child mistreatment reflects an extreme form of family instability. Children who are mistreated often
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