3. Recent technological developments have allowed greater use of the electromagnetic spectrum 1. describe electromagnetic waves in terms of their speed in space and their lack of requirement of a medium for propagation In space (a vacuum) electromagnetic waves travel at the speed of light‚ a constant equal to 3.00108ms1. Unlike sound waves‚ electromagnetic waves do not vibrate particles‚ therefore they do not need a medium (substance) to propagate (move). 2. identify the electromagnetic wavebands
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respect to a fixed point in its surroundings. Q3: Are motion and rest absolute or relative? Explain with an example. Answer: No these terms rest and motion are relative. For example‚ a person inside a car‚ carrying a ball in his hand will see the ball is at rest. While for another person‚ outside the car will see the ball is also moving. Q4: What is meant by scalars and vectors? Answer: * Scalar Quantities: Quantities that require magnitudes only to specify them are called scalar quantities
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basketball confrontation of focus. At present‚ the domestic and international factors affect the basketball shooting‚ mainly for heart‚ Management and technical action‚ and take full advantage of the principles of mechanics to study less. From the physics point of view‚ using principles of mechanics and impact analysis‚ The Hit Rate factors‚ in order to explore an effective way to improve the shooting‚ in order to improve the rational knowledge of the athletes on the shooting process‚ guidance basket
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GRAVITATION Kepler’s Laws Towards the end of the sixteenth century‚ Tycho Brahe collected a huge amount of data giving precise measurements of the position of planets. Johannes Kepler‚ after a detailed analysis of the measurements announced three laws in 1619. 1. The orbit of each planet is an ellipse which has the Sun at one of its foci. 2. Each planet moves in such a way that the (imaginary) line joining it to the Sun sweeps out equal areas in equal times. 3. The squares of the periods
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Physics began when man first started to study his surroundings. Early applications of physics include the invention of the wheel and of primitive weapons. The people who built Stone Henge had knowledge of physical mechanics in order to move the rocks and place them on top of each other. It was not until during the period of Greek culture that the first systematic treatment of physics started with the use of mechanics. Thales is often said to have been the first scientist‚ and the first Greek philosopher
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10.1 & 10.2 Outline AP Edition College Physics p. 290-297 I. 10.1 The Basic Energy Model 1. The Basic Energy Model (Intro) a. The fundamental forms of energy are kinetic‚ potential‚ and thermal energy. b. Most of the time will be spent understanding the transforming of energy. c. Energy can be transformed by applying a mechanical force. d. The law of conservation of energy‚ energy is neither created nor destroyed‚ is consider by scientists to be the most important law of
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I. Introduction Physics is the natural science that involves the study of matter and its motion through space and time‚ along with related concepts such as energy and force. More broadly‚ it is the general analysis of nature‚ conducted in order to understand how the universe behaves. Physics is one of the oldest academic disciplines‚ perhaps the oldest through its inclusion of astronomy. Over the last two millennia‚ physics was a part of natural philosophy along with chemistry‚ certain branches
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and statements of conclusions | Listing of data and superficial statements of conclusions | COMMENT PART A: AIM The purpose of this experiment is to use dynamic trolleys and plasticine dummies to model the effect inertia has on the impact of a car accident. RESULT: TROLLEY A DUMMY | The dummy in trolley A was propelled forward when it collided with trolley B. | TROLLEY B DUMMY | When trolley A hit trolley B the dummy in trolley B was jolted backward when the trolley stopped all of the sudden
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You throw the ball. You catch the ball‚" said a well-respected baseball manager by the name of Casey Stengel. Mr. Stengel was a baseball man‚ not a mathematician nor a physicist. Physics and mathematics can be applied to the game of baseball on every pitch‚ and on every swing of the bat. To understand the physics of the game‚ it is first necessary to look at the center of the game‚ the ball. Section 1.09 of the Official Baseball Rules states that the ball must weigh between 5 ounces and 5 ¼
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almost all roller coasters only rely on Earth’s gravity to get the cars down the track? Roller coasters are centered all on physics and I will hopefully teach you some things‚ big or small about them today. In this essay we will be exploring the world of roller coasters. Some of the topics we will cover will range from the history‚ to the principles that allow the cars to continue throughout the length of the track‚ and the general physics surrounding roller coasters. The history of roller coasters
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