Physics 1 – Mechanics and Heat Lecture Notes Prepared by: ENGR. HAROLD JAN R. TERANO‚ ECE Lesson 5 ROTATIONAL KINEMATICS AND DYNAMICS Uniform Circular Motion – an object moves at a constant speed along a circular path. Velocity is always tangent to the path in circular motion. Speed is constant‚ velocity is not. Centripetal Acceleration‚ – acceleration that maintains the object along a circular path directed towards the center. Also called as radial acceleration
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ATOMIC PHYSICS The nuclear atom All matter is made up of atoms which consist of a central nucleus‚ surrounded by electrons. Inside the nucleus are protons and neutrons. Particle Relative mass Charge Location Proton 1840 + Nucleus Neutron 1840 0 Nucleus Electron 1 - Outside nucleus Proton or atomic number (Z) This is the total number of protons in the nucleus of an atom. Nucleon or mass number (A) This is the total number of protons and neutrons in the nucleus of an atom. Note: a nucleon
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PHYSICS PROJECT TO STUDY THE OPTICAL LENS OF A HUMAN EYE Eyes are organs that detect light‚ and convert it to electro-chemical impulses in neurons. The simplest photoreceptors in conscious vision connect light to movement. In higher organisms the eye is a complex optical system which collects light from the surrounding environment; regulates its intensity through a diaphragm; focuses it through an adjustable assembly of lenses to form an image; converts this image into a set of electrical signals;
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Physics “FORMULAS LIST “ | | | | | | | Quantity |Symbol |Formula | |% Error | |% Error = ( |A-M| ) x 100 /A | |% Uncertainty | |% Uncertainty = (Uncertainty
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Lecture Outline Chapter 2 Physics‚ 4th Edition James S. Walker Copyright © 2010 Pearson 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
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DEOGRACIAS P. PRINCESA MEMORIAL HIGH SCHOOL Ranao – Ranao‚ Ligao City LONG TEST IN SCIENCE IV (PHYSICS) MULTIPLE CHOICE. Read each item carefully and write the letter of the BEST answer in your answer sheets. 1. What is needed for sound to spread and travel? a. Force b. Medium c. Wires d. Sound wave 2. All of these are media in which sound waves can travel EXCEPT a. Solid b. Liquid c. Gas d. Vacuum 3. Why do people in upland areas speak louder than the normal voice
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Raymond Ye Mr. Pettibone IB Physics 2 November 2013 Internal Assessment DESIGN Aspect 1: How does the time a rubber band spends stretching a force of 12.5 N affect the force required to break/snap the rubber band? IV- The time spent stretching the rubber band 12.5 N DV- The force required to break/snap the band Units for Independent Variable- Minutes Units for Dependent Variable- Newtons Aspect 2: Variables that will be kept the same include: -The force of the stretch -Conditions
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Physics Moment of a force: Moment of a force = force x perpendicular distance of the line if action if the force from fulcrum Law of moments: When a body is in equilibrium the sum of the clockwise moments about any point equals the sum of the anticlockwise moments about the same point. Centre of mass: Centre of mass is the point where whole mass of the body assumes to be concentrated. II. If the vertical line through the centre of mass is outside the base it will be a topples but if it’s passed
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Instructions to APPLY EYEDROPS TO YOUR CATS EYES Giving your feline eye drops can be a precarious and uncomfortable procedure‚ STEP 1: YOU WILL NEED Eye drops Moist cotton fleece ball A towel STEP 2: HOLD YOUR CAT SECURELY Place the feline on a table or in your lap and wrap your arm over her body to keep her unfaltering. You might need to wrap her in a towel to stop her scratching. Keep your body or a divider behind your feline to stop her moving in reverse. Support her head with one hand
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Spring SlingName _________________________ Date _______________ Physics AP Physics Physics AP Physics Spring Sling 2013 Objective: Design‚ build‚ test and utilize a device for launching a regulation size and weight soccer ball for maximum distance and accuracy. Launch Date: Thursday‚ May 16‚ 2013 first three class periods (rain dates – May 17 or the next rain free day) Time: Students may begin setting up at
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