SCIENCE CLASS – IX SAMPLE PAPER SA – 1 General Instructions: MM: 90 The question paper comprises of two sections‚ A and B. You are to attempt both the sections. i) All questions are compulsory. ii) There is no overall choice. However‚ internal choice has been provided in all the five questions of five marks category. Only one option in such questions is to be attempted. iii) All questions of Section A and all questions of Section B are to be attempted separately. iv) Question numbers 1 to
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| |Average Speed |Vavg |Vavg = (total distance | | | |traveled)/(total elapsed time) | |Acceleration |a |a = DV/Dt = (V2 - V1) / (t2 - t1) | |Final Speed |V2 |V2 = V1 + aDt | | Original Speed
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velocity and acceleration of four moving objects at a given instant in time are given in the following table. Determine the final speed of each of the objects‚ assuming that the time elapsed since t = 0 s is 2.0 s. Initial velocity v0 Acceleration a (a) +12 m/s +3.0 m/s2 (b) +12 m/s -3.0 m/s2 (c) -12 m/s +3.0 m/s2 (d) -12 m/s -3.0 m/s2 29. A jogger accelerates from rest to 3.0 m/s in 2.0 s. A car accelerates from 38.0 to 41.0 m/s also in 2.0 s. (a) Find the acceleration (magnitude
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speeding up‚ and turning provide a sufficient vocabulary for describing the motion of objects. In physics‚ we use these words and many more. We will be expanding upon this vocabulary list with words such as distance‚ displacement‚speed‚ velocity‚ and acceleration. As we will soon see‚ these words are associated with mathematical quantities that have strict definitions. The mathematical quantities that are used to describe the motion of objects can be divided into two categories. The quantity is either a
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JAFARUDIN REG. NO: 16DKM12F2016 LECTURER’S NAME: MISS DINA IZZATI BT HASHIM TITLE: NUMERICAL VERIFICATION OF NEWTON’S SECOND LAW OF MOTION OBJECTIVES: 1. To numerically examine the relationship between force‚ mass and acceleration. 2. To find the acceleration of the cart in the simulator. 3. To find the distance covered by the cart in the simulator in the given time interval. EQUIPMENT: 1. Newton’s Second Law of Motion Virtual Lab simulator. 2. Computer Figure 1.1:
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5. acceleration – change in speed over time (vector quantity) TWO types; a. Linear acceleration – speed up or slow down b. Centripetal acceleration – change direction B. Centripetal acceleration (ac) – acceleration changes due to change in direction. 1. Centripetal means center seeking 2. ac is always directed toward the center of the curved path (circle) 3. If an object is moving in a circle it will always have a centripetal acceleration 4. ac
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is freely falling with acceleration g‚ from the instant it is released until it strikes the ground. 4. The time it takes for the ball to hit the ground depends on v0 ‚ g and h. 004 10.0 points The velocity of a projectile at launch has a horizontal component vh and a vertical component vv . When the projectile is at the highest point of its trajectory‚ identify the vertical and the horizontal components of its velocity and the vertical component of its acceleration. Consider air resistance
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instantaneous center method‚ centroid. 9 Acceleration analysis Acceleration of a link‚ four bar mechanism‚ angular acceleration of links‚ acceleration of intermediate and offset points‚ slider crank mechanism‚ and Coriolis acceleration component‚ crank and slotted lever mechanism‚ Klein’s construction. 6 UNIT-III Cams Introduction‚ types of cams‚ types of followers‚ motion of the follower‚-uniform velocity‚ SHM‚ uniform acceleration and retardation‚ Cycloidal motion‚ profile of
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Education‚ Inc. Chapter 2 One-Dimensional Kinematics Copyright © 2010 Pearson Education‚ Inc. Units of Chapter 2 • Position‚ Distance‚ and Displacement • Average Speed and Velocity • Instantaneous Velocity • Acceleration • Motion with Constant Acceleration • Applications of the Equations of Motion • Freely Falling Objects Copyright © 2010 Pearson Education‚ Inc. 2-1 Position‚ Distance‚ and Displacement Before describing motion‚ you must set up a coordinate system –
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ROTATIONAL MOTION PROBLEMS: 09-1 1) A grinding wheel starts from rest and has a constant angular acceleration of 5 rad/sec2. At t = 6 seconds find the centripetal and tangential accelerations of a point 75 mm from the axis. Determine the angular speed at 6 seconds‚ and the angle the wheel has turned through. |We have a problem of constant angular acceleration. The figure & coordinate system are |[pic] | |shown. Since a time
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