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26 Cards in this Set
- Front
- Back
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the moment of inertia of an object depends on:
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the mass and the mass distribution
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the moment of inertia of a ring is larger than a disk assuming a similar mass and radius (t/f)
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true
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the torque of a force also depends on the distance from the pivot pint of the rotating object to the point where the force is applied. (t/f)
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true
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to determine the moment of inertia experimentally we will use the relationship between torque and:
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angular acceleration
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a cart moving down a level track, a velocity vs time graph will make a :
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straight line
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how is centripital force related to the radius of the circular path the mass is moving on?
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the force is inversely proportional to the radius of the path
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how is centripital force related to the tangential velocity of the mass?
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the force is proportionally related to the square of the tangential velocity of the mass
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for an object to e moving in a circle there must be a nonzero net force acting on it. which newton law is this?
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newtons law of universal gravitation
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the total change of momentum for a closed system is?
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zero
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the impulse a single object experiences during a collision is related to its change in momentum how?
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they have the same value, because they are the same thing.
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the equation for impulse given is?
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I=F*change T
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the acceleration of a cart up and down a track can be described as
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a=g*sin(theta)
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a graph that has a constant acceleration will be
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a straight line with no slope
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when taking a manual measurement, you should...
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be sure of the numbers but the number of digits depends on the instrument used
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SI unit for mass, length, and time are
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Kg, meters, seconds
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simple harmonic motion occurs when the net force is proportional to the displacement and in the same direction
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false
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period of a spring in SHM depends on..? (2)
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spring constant and the mass
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in F=-kx, the negative sign is for?
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force points opposite to the direction of the displacement of the mass
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archmedies principle states that in the case of one object being completely cubmerged, the bouyant force is:
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the bouyant force that the fluid exerts on the object is equal to the weight of the fluid displaced for submerged or partially submerged
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for a floating object, the buoyant force is
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P(fluid=P(object
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and liquid or gas can be considered a fluid (t/f)
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true
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archmedies principle does not apply to partially submerged objects (t/f)
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false
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buoyant force increases with depth (t/f)
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true
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position vs time graph, which is x axis and y axis?
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position is y, time is x
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velocity vs time graph, what is the slope?
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the acceleration
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you should use data points to calculate the slope (t/f)
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false
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