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- 1. Multiple Choice
If the bowling ball in the picture is going around counter-clockwise, which arrow shows the right direction for the velocity of the ball when it is at the location shown?
A
B
C
D
- 2. Multiple ChoiceWhat relationship exists between the radius of a circle and the centripetal acceleration?directinverseexponentialinverse squared
- 3. Multiple ChoiceWhich of the following is the unit for centripetal force?Jm/s2kg⋅m/sN
- 4. Multiple Choice
Calculate the amount of centripetal force it takes for a softball pitcher to rotate a ball with a velocity of 3 m/s if the ball has a mass of 0.12 kg and her arm is 0.65 meters long.
0.38 N
1.23 N
0.55 N
1.66 N
- 5. Multiple ChoiceWhere is the net force when the rollercoaster is at the top of the loop?Towards the skyTowards the RightTowards the leftTowards the ground
- 6. Multiple Choice
As this ride starts to spin in a circular motion the swings move outward. What causes the swings to be pulled outward from the center?
Gravity
Centripetal Force
Speed
Inertia
- 7. Multiple ChoiceCalculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s2.2.4 m/s3.6 m/s3.9 m/s4.2 m/s
- 8. Multiple ChoiceBruno the bat flies at a speed of 0.5 m/s in circle of radius 1 m. What is his acceleration?0.25 ms-20.5 ms-21 ms-22 ms-2
- 9. Multiple Choice
You are moving a ball in a circle using 72 N of centripetal force. What would the force be if you doubled the radius of the circle?
18 N
36 N
72 N
144 N
- 10. Multiple ChoiceWhich quantity is measured in newtons?densityenergypressureweight
- Answer choicesTagsAnswer choicesTags