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Senior High School: 11th and 12th Grade
Physics
Forces - Circular Motion
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Q.1
If a driver drives around a bend faster than normal, what happens to the size of the centripetal force needed to keep the car going around the bend?
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It doesn't change
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It increases
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It decreases
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The car will crash whatever happens
Q.2
Which force acts as the centripetal force responsible for a car traveling around a bend?
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Friction
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Electrostatic force
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Gravity
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Tension (Pull)
Q.3
What name is given to the resultant force that acts towards the center of a circle?
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Centrifugal
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Centripetal
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Centipede
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Centimetre
Q.4
If the centripetal force acting on the Moon were to suddenly stop acting, what would happen to the Moon?
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It would continue to orbit unaffected
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It would come crashing to Earth
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It would go flying off into space
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It would be swallowed by the black hole that would result
Q.5
If an object orbits around a point five meters away in three seconds, what will happen to the speed of the object if the object's orbit is increased to six meters?
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Stays the same
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Decrease
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Increase
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Impossible to tell
Q.6
What does increasing the acceleration of an object following uniform circular motion change?
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Direction of motion
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Speed of object
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Both the direction and speed of the object
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Neither speed nor direction
Q.7
What can increase the centripetal force required to keep an object in uniform circular motion about a point?
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The mass of the object
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The speed of the object
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The radius of the orbit
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All of the above
Q.8
An object moving in a circle continuously accelerates towards what?
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A predefined point outside of the area of the circle
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A path perpendicular to the surface of the circle
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The center of the circle
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None of the above
Q.9
Which force acts as the centripetal force responsible for the circular motion of planets orbiting the Sun?
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Electrostatic force
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Gravity
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Tension (Pull)
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Friction
Q.10
Which of the following is an example of uniform circular motion?
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A ball traveling through space
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An artificial satellite
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Racing car
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All of the above
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