Circular Motion Part 2 Question Preview (ID: 30231)


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You are able to spin a ball on your finger because:
a) The center of gravity is over your finger
b) The area of support is outside of your finger
c) the spinning creates a gravitational force on your finger
d)

To prevent a box from toppling over, the box center of gravity must:
a) Be outside of the area of support
b) Be over the area of support
c) Be in the very center of the box
d) Be bigger than the box

The point around a object will naturally spin is
a) the center of gravity
b) the center of support
c) the center of mass
d) the center of force

The shape that describes the orbits of all planets and comets is
a) orbital
b) circular
c) parabolic
d) elliptical

What force causes all objects to rotate around the sun
a) centripetal
b) centrifugal
c) gravity
d) inertia

As the mass of an object increases, the gravitational force:
a) increases
b) decreases
c) stays the same
d)

As distance between objects increases, the gravitational force
a) increases
b) decreases
c) stays the same
d)

As the radius increases the centripetal force
a) increases
b) decreases
c) stays the same
d)

If mass increases, the centripetal force
a) increases
b) decreases
c) stays the same
d)

As velocity increases, the centripetal force
a) increase
b) decreases
c) stays the same
d)

where would you encounter the least amount of gravity?
a) on our moon
b) on Earth
c) on Jupiter
d) on Pluto

Which object is NOT accelerating?
a) A car turning around a corner at a constant speed
b) A car coming to a stop
c) A runner speeding up to reach the finish line
d) A plane cruising due west

what 3 factors affect the amount of centripetal force
a) mass, velocity and direction
b) velocity, direction and radius
c) radius, mass and velocity
d) mass, radius and direction

What direction does centripetal force always pulls to
a) the center of the circle
b) the top of the circle
c) the bottom of the circle
d) next to the object spinning

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