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what is the formula for impulse? |
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force times the change in velocity |
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What is impulse measured in? |
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Whats the formula for momentum? |
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m times the change in velocity |
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What are the units for momentum? |
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What is the equivalent of impulse? |
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What can result from either a large force and short time or a mislay force and long time? |
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What is the product of a rotating object's moment of inertia and angular velocity? |
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The angular velocity of a rotating object changes only if what is applied to it? |
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Since mass cannot change, if momentum is constant, what else is constant? |
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What kind of system is one with no outside forces? |
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In a closed system, what happens to momentum? |
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If two objects of varying size collide, the forces they exert on each other will be equal and opposite in direction. Which law does this follow? |
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What is the product of average force on an object and the time interval over which it acts? |
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If a rolling ball hits a stationary ball and comes to a stop, what of the rolling ball's is transferred to the stationary ball? |
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If a rolling ball hits a stationary ball and comes to a stop, all of the rolling ball's momentum is transferred to the stationary ball, and what will it do? |
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Definition
roll with the same velocity in the same direction |
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What is it called when the net external force on a closed system is zero? |
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What is the formula for Work? |
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What are the units for work? |
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What is the ability of an object to produce a change in itself or the world around it? |
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What is energy of motion? |
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What is the formula for energy of motion (kinetic)? |
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What are the units for all energy? |
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Who is the Joule named after? |
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In what is "when work is done on an object, the result is a change in kinetic energy" stated? |
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What is the transfer of energy by mechanical means? |
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If force and distance are at right angles, what is work? |
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What weighs about one Newton? |
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A force exerted which way to the motion does no work? |
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What is the formula for power? |
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What is the rate at which external force changes the energy of a system? |
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Time affects power but not what? |
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A machine eases the load by changing what of a force to match the force to the capability of machine or person? |
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What is not a source of energy? |
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What does a machine aid in? |
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the transfer of energy, but it cannot create it |
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What is the work a machine does? |
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What is the kind of work that you do? |
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Which type of work cannot exceed the other? |
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What is the force exerted by the machine called? |
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What is the force exerted by a person on a machine? |
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What is the ratio of output work to input work? |
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What is equal to the displacement of a load? |
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Definition
ideal mechanical advantage |
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What is the ratio of resistance force to effort force? |
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What does a machine do if the mechanical advantage is greater than one? |
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Definition
increases the force applied by a person |
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What kind of machine has equal input and output work? |
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What is machine consisting of two or more simple machines that are linked in such a way that the resistance force of one machine becomes the effort force to the second? |
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List all the simple machines from the notes. |
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lever, pulley, wheel and axle, inclined plane, wedge, screw |
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What are quants that include magnitude and direction? |
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What are quantities that involve only numbers with no indication of direction? |
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What is a push or pull that causes a change in motion? |
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What is the force exerted by a surface on an object and acts perpendicular to and away from a surface? |
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what acts to oppose sliding motion between surfaces? |
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what cases motion by acting in the same direction as the acceleration of the object? |
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What ist he force due to gravitational attraction between two objects termed? |
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What does the acronym LASER stand for? |
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Definition
light amplification by stimulated emission of radiation |
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What generic equation represents a direct relationship? |
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What kind of line does a direct relationship form? |
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What is the generic equation for an inverse relationship? |
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What kind of graph does an inverse relationship form? |
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What is the generic equation for a quadratic relationship? |
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What kind of graph does a quadratic equation form? |
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What is the value with units of the speed of light? |
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What is the mass of the Earth with units? |
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What is the mass with units of the Sun? |
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what is the numerical value with unites for the charge of an electron? |
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What is the symbol for acceleration due to gravity? |
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What is the value of acceleration due to gravity on the moon? |
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What is the acceleration due to gravity on Earth? |
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What is the symbol for universal gravitation? |
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When a planet gets closer to the Sun, what happens to its speed? |
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What was Cavendish's famous experiment called? |
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For an object moving with circular motion, the direction of centripetal acceleration is always towards where? |
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What is the distance between the earth and the sun often expressed as? |
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What does the slope of a position time graph represent? |
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what does the slope of a velocity time graph represent? |
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What does the slope of the tangent to the curve on a velocity time graph represent? |
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instantaneous acceleration |
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What does a flat line on a velocity time graph represent? |
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constant velocity and zero acceleration |
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What does a flat line on a position time graph represent? |
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Definition
zero velocity and standing still |
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What is the formula for Newton's law of universal gravitation? |
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If the average velocity a particle is zero in the same time interval then what is the displacement? |
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What is the lowest possible temperature for matter? |
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What is absolute zero in celsius? |
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