UCM- Uniform Circular Motion & UG - Universal Gravitation
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Centripetal forces are always ____ to the circle | perpendicular
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| If the centripetal force disappears, an object will move... | in a straight line at a constant speed
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| the force needed to cause rotation | centripetal
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| Circular motion is accelerated because this is changing | direction
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| Objects travelling in a circle are accelerating towards the | center
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| Gravitational force depends on two | masses
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| Gravitational force is inversely related to the square of the ___ between the two objects. | distance
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| Graviational force and mass are ____ related | directly
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| Gravity that occurs everywhere | universal
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| Speed perpendicular to a circle | tangential velocity
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| The speed of a UCM object moving in a circle is | constant
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| This vector points in the same direction as the centripetal force | centripetal acceleration
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| Always an attractive action reaction pair of forces | gravitational force
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| If you increase the distance between two objects, the gravitational force between them will | decrease
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| If you cut the distance between two objects in half, the gravitational force will | quadruple
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| If you double one mass, the gravitational force it exerts on everything else will | double
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| a change in this is acceleration | velocity
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| three ways to accelerate | speed up, slow down, change direction
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| the other name for gravitational force | weight
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| Unit for weight and gravitational force | Newton
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| The centripetal force when a car rounds a curve | friction
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| The centripetal force when a waterskiier changes direction | tension
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| tendency of an object to keep the same motion | inertia
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| equation to calculate mass from weight | Fw = mg
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| The time it takes to make one revolution (T) | period
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| Universal gravitation constant, G | 6.67 x 10^-11
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| acceleration due to gravity on earth, g | -9.8 m/s^2
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Created by:
enewmanator
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