Centripetal Force: The center-seeking force Group Members: Joshua Velez‚ Patrick Hannigan-Devine‚ and Eric Guidarelli PURPOSE: To move in a circle F=ma is required‚ where acceleration being the rate of change of velocity with velocity being both magnitude and direction. Magnitude of acceleration can be found by a=v2R. The relation of these two is found in centripetal force F=mv2R. This lab will prove the relation of the first two equations. EQUIPMENT: * Centripetal Force Apparatus
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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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answers on a separate sheet of paper‚ not squished in the spaces on these pages. When relevant‚ data collected should be presented in a table. Objective: To explore the acceleration and force of an object that travels a circular path at constant speed. Motion of this kind is called uniform circular motion. Part 1: Centripetal Acceleration 1. The Gizmotm shows both a top view and a side view of a puck constrained by a string‚ traveling a circular path on an air table. Be sure the Gizmo has these settings:
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Motion NCERT Chapter Questions and Answers and other Q & A Q1: An object has moved through a distance. Can it have zero displacement? If yes‚ support your answer with an example. Answer: Yes an object can have zero displacement even though it has moved through a distance. It happens when the object moves back to its original position i.e. final position coincides with the starting position. Example: Suppose an object travels from O to C and then comes back to original position O. Total
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of the given choices in such questions. iv) Use of calculators is not permitted. 1. Name a physical quantity which has dimensions ML² T¯¹. 2. The speed of an object can never be negative. Why? 3. Why the work done by centripetal force is zero ? 4. You are given two spheres of the same mass‚ size and appearance‚ but one of them is solid while the other hollow. If they are allowed to roll down an incline which One will reach the bottom first? 5. What is the nature
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in a Plane Physics Question 4.1: State‚ for each of the following physical quantities‚ if it is a scalar or a vector: volume‚ mass‚ speed‚ acceleration‚ density‚ number of moles‚ velocity‚ angular frequency‚ displacement‚ angular velocity. Answer: Scalar: Volume‚ mass‚ speed‚ density‚ number of moles‚ angular frequency Vector: Acceleration‚ velocity‚ displacement‚ angular velocity A scalar quantity is specified by its magnitude only. It does not have any direction associated with it
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Section A Q 1: What is diffusion? Q 2: Identify the tissue:i) in aquatic plants that gives them buoyancy to float. ii) that contains chlorophyll. Q 3: What is thrust? Q 4: Why does lemonade become cool when ice cubes are added to it? Q 5: What is centripetal force? Give one example of an object moving due to this force. Q 6: Write any four functions of vacuoles. Q 7: Why is a neuron long and branched? Q 8: i) Explain: Our body has a special mechanism to cool down during summers. ii) Give one example
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Duncan‚ Vinny‚ and Wayne are all friends working - or wasting time - the summer before senior year in high school. Duncan is the soul‚ Vinny the brains‚ and Wayne the muscle. At the end of the previous summer‚ Duncan tried to save a drowning girl and failed. Not being a hero has really affected his life‚ particularly his relationship with his girlfriend Kim. Also‚ he is now terrified of swimming‚ especially when the nightmares come back. Duncan’s summer job is with the public transit lost and
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C1. A room in a house has a floor area of 120 ft2. Which of the following is most likely the approximate volume of the room? b. 30 m3 C2. When SI units are plugged into an equation‚ it is found that the units balance. Which of the following can we expect to be true for this equation? a. The equation will be dimensionally correct. C3. How long has it been that scientists have accepted that the nucleus of the atom consists of neutrons and protons? Think of your answers in terms of order
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Introduction to the Language of Kinematics Describing Motion with Words Scalars and Vectors Distance and Displacement Speed Velocity Acceleration Kinematics is the science of describing the motion of objects using words‚ diagrams‚ numbers‚ graphs‚ and equations. The goal of any study of kinematics is to develop sophisticated models which serve in describing (and ultimately‚ explaining) the motion of real-world objects. Much of our lives are spent in motion‚ travelling
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