5/31/2023 0 Comments Physics 101 ub test quizlet![]() ![]() Determined by weighing kilogram Unit in the Metric System Defined as being equal to the mass of the International Prototype Kilogram (IPK), which is almost exactly equal to the mass of one liter of water. meter (new definition) 1.65 x 106 times the wavelength of the orange-red radiation of Krypton 86 mass Represents the quantity of matter in a body. length Distance or external of space meter Unit in the Metric System meter (old definition) Distance between two scratches on a bar of platinum, kept at Sevres, France, at the International Bureau of Weights and Provides for the inter-conversion of units among all branches of science. system international (SI) units Also known as the International System of Units: Most modern Metric System, Based on the Metric System, Extension of the MKS System, Uses seven basic units, Preferred system of measurement in science and medicine. ![]() MKS system Based on the meter (m), kilogram (k), and second (s) CGS system Based on the centimeter (cm),gram (g), and second (s) metric measurement system Also known as the Centimeter, Gram, Second (CGS) or Meter, Kilogram, Second system (MKS). ![]() In the process of being replaced by the International System of Units. Used in the United States and parts of the British Commonwealth. Based on the foot (ft), pound (lb), and second (s) Metric System english measurement system Also known as the British Engineering System (Source: Webster's 9th New Collegiate Dictionary) There are two systems: Represent fractions that have denominators that are powers of ten measurement A figure, extent, or amount obtained by measuring DIMENSION. decimal point A dot that separates the ones digit and the digit immediately to its right decimal numbers Numbers to the right of the decimal point are called decimal numbers. When pushing a heavy block, the block will push back with the same force applied powers of ten A system used to express large and small numbers too cumbersome to write in ordinary notation. There are three laws newton's first law (Law of Inertia) - A body will remain at rest or if in motion will continue moving at a constant velocity in straight line unless acted upon by an external force newton's second law - The force acting on a body is proportional to it's mass times it's acceleration the direction of the force is the same as that of the body's accelerationį = ma newton's third law (Action/Reaction) - For every action there is an equal and opposite reaction. ![]() I 0 = R 1 R 1 R 2 i i = g i 4 i_0=\frac=10000 \Omega R in = 10000Ω.Scientific method Comprises the systematic collection of facts of the study of their interrelationship, and the drawing of valid conclusions from the resulting data laws of motion Developed by Sir Isaac Newton in 1686 The input to the circuit shown in Figure is the current source current, i 3 i_3 i 3 . What is the acceleration due to this artificial gravity at the walls? 16 x 16 = 256/33 = 7.8 m/s^2 If a man weighs 700 N when he is at rest on Earth, how much will he weigh in the room? 700 N x 2m/s^2 = 1400 / g(which is 10) = 140 N A cylindrical space station with a radius of 33 m is rotating so that points on the walls have speeds of 16 m/s. 25g = 70 280 = 350 N A room is being accelerated through space at 2 m/s2 relative to the "fixed stars." It is far away from any massive objects. What is the weight of the child in an elevator accelerating upward at 0.25 g? 280 x. (b) Since it is a constant speed, then acceleration is 10 m/s^2 Downward A child weighs 280 N standing on Earth. (b) What would the value and direction be if the travels upward with a constant speed of 4 m/s? (a) 10 (g) 1 = 11 m/s^2 Downward (a) What would the value and direction be if the elevator accelerates upward at 1 m/s2? (b) 52 mph - 20 mph = 32 mph An observer measures the free-fall acceleration in an elevator near the surface of the Earth. (b) What is the speed of the ball relative to the ground if the ball is thrown backward? (a) 52 mph 20 mph = 72 mph (a) If the child is riding in a bus traveling at 20 mph, what is the speed of the ball relative to the ground if the ball is thrown forward? Why is Earth a noninertial reference system? because of all the various ways it moves, including rotation, revolution, and the movement of the Galaxy A child can throw a ball at a speed of 52 mph. What causes the Coriolis force? the increase in the linear speed of the rotating surface you stand on as you move toward the outer edge How does the Coriolis force affect tornadoes? spin in one direction in the Northern Hemisphere and in the opposite direction in the Southern Hemisphere. ![]()
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