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Circular Motion Part 2
Test Description: Another review
Instructions: Answer all questions to get your test result.
1) You are able to spin a ball on your finger because:
A
The area of support is outside of your finger
B
The center of gravity is over your finger
C
the spinning creates a gravitational force on your finger
2) To prevent a box from toppling over, the box center of gravity must:
A
Be outside of the area of support
B
Be bigger than the box
C
Be over the area of support
D
Be in the very center of the box
3) The point around a object will naturally spin is
A
the center of mass
B
the center of support
C
the center of force
D
the center of gravity
4) The shape that describes the orbits of all planets and comets is
A
elliptical
B
parabolic
C
orbital
D
circular
5) What force causes all objects to rotate around the sun
A
gravity
B
centrifugal
C
inertia
D
centripetal
6) As the mass of an object increases, the gravitational force:
A
decreases
B
increases
C
stays the same
7) As distance between objects increases, the gravitational force
A
stays the same
B
increases
C
decreases
8) As the radius increases the centripetal force
A
increases
B
decreases
C
stays the same
9) If mass increases, the centripetal force
A
stays the same
B
decreases
C
increases
10) As velocity increases, the centripetal force
A
stays the same
B
decreases
C
increase
11) where would you encounter the least amount of gravity?
A
on Earth
B
on our moon
C
on Pluto
D
on Jupiter
12) Which object is NOT accelerating?
A
A runner speeding up to reach the finish line
B
A plane cruising due west
C
A car coming to a stop
D
A car turning around a corner at a constant speed
13) what 3 factors affect the amount of centripetal force
A
velocity, direction and radius
B
radius, mass and velocity
C
mass, radius and direction
D
mass, velocity and direction
14) What direction does centripetal force always pulls to
A
next to the object spinning
B
the top of the circle
C
the bottom of the circle
D
the center of the circle
*select an answer for all questions
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