Waves In physics‚ a wave is a disturbance that travels through space and time‚ usually accompanied by the transfer of energy. Waves travel and the wave motion transfers energy from one point to another‚ often with no permanent displacement of the particles of the medium—that is‚ with little or no associated mass transport. They consist‚ instead‚ of oscillations or vibrations around almost fixed locations. For example‚ a cork on rippling water will bob up and down‚ staying in about the same place
Premium Wave Wavelength Light
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
Premium Kinematics Velocity Classical mechanics
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
Premium Radioactive decay Neutron Atom
solve above these problems‚ we create a device in which the lights glow in night and in day time‚ they off automatically and don’t glow. Due to use of it‚ we can solve above problems and can also save electricity and men’s power. PRINCIPLE This project is based on Light Dependent Resistance (L.D.R.). Light Dependent Resistance [LDR] is a resistance‚ in which opposing power of current depends on the presence of quantity of light present‚ i.e. the resistance of LDR increases or decreases‚ according
Premium Semiconductor Ohm's law Incandescent light bulb
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
Premium Eye Ear Sound
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
Free Thermodynamics Energy Resistor
This year in science‚ we were paired up in groups to build a car powered only by a rubber band. There was a lot of physics and thought put behind the planning of our car. The rubber band moved the car by storing up elastic potential energy which then turned into kinetic energy when released. Newton’s Laws of Motion also come in handy when thinking about how to keep the car moving. “An object in motion stays in motion.” There was also a lot of thought put into the wheels. We had to be aware of the
Premium Energy Potential energy Kinetic energy
Review Complete the statement or answers the question. Which problems would NOT be a part of physics? A theory is A scientific hypothesis may turn out to be right or it may turn out to be wrong. If it is a valid hypothesis‚ there must be a test for proving that it is To test a scientific hypothesis you would Which of the following statements is not true? Which of the following is a reason to express scientific findings mathematically? Which has greater linear speed
Premium Scientific method Science Theory
and scientific thoughts that have been recently challenged 5. Conduct research into how authorities in the sixteenth and seventeenth centuries responded to Galileo’s experiments and published works. Provide one example. Galileo once wrote a book about how the earth was moving around the sun. At this time this was considered wrong. Authorities were outraged and put Galileo on trial as a suspect of heresy. In court‚ Galileo was forced to state that all of his findings were wrong which sentenced him
Premium Electric charge Nikola Tesla Isaac Newton
Physics “FORMULAS LIST “ | | | | | | | Quantity |Symbol |Formula | |% Error | |% Error = ( |A-M| ) x 100 /A | |% Uncertainty | |% Uncertainty = (Uncertainty
Premium Force Kinetic energy Classical mechanics