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- 1. Multiple Choice
Which represents the acceleration of the ball?ABCD - 2. Multiple ChoiceWhich of the following depict the speed of the blowing ball?ABCD
- 3. Multiple Choice
moving or tending to move toward a center...
centripetal force
centrifugal force
Tangent
Curvature
- 4. Multiple Choice
the process or act of turning or circling around something
Curvature
Rotation
Radius
Orbit
- 5. Multiple ChoiceYou swing a bucket of water attached to a string in a circle above your head. What keeps the water in the bucket?FrictionCentripetal ForceGravityInertia
- 6. 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
- 7. Multiple ChoiceWhat is the SI unit for circumference?meterpiincheskilometer
- 8. Multiple ChoiceCalculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.10 N20 N30 N40 N
- 9. Multiple Choice
Centripetal force is...
the inward force acting on a body moving at constant speed in a circle
the outwards force acting on a body moving at constant speed in a circle
- 10. Multiple ChoiceCentripetal acceleration acts towards the ___________ of the circular motioncentrecircumference
- 11. Multiple ChoiceA horse gallops around a circular arena. The centripetal force on the horse is ___.directed outwardtensiondirected toward the center of the arena9.8 N
- 12. Multiple Choice
Why do objects experience centripetal acceleration even though they can have a constant speed?
Because they are speeding up as they move in a circle
Because they are constantly changing direction and hence, velocity changes, and that net change is directed inward.
Because they are constantly changing both speed and direction
Because when you have 100 people pedaling, you can speed up more easily.
- 13. Multiple Choice
The linear velocity is always _____ to the line of a circle.
outwards
towards the center
tangent
faster
- 14. Multiple ChoiceCentrifugal force is a ______force that pushes you to the outside of a circle during uniform circular motion.fictitious force that is really just the linear momentum of an object in uniform circular motion.The force that keeps the planets in orbit
- 15. Multiple Choice
What is the velocity formula for uniform circular motion?
- 16. Multiple ChoiceCentripetal acceleration is ...Acceleration toward the center of a curved or circular pathAcceleration toward the outside of a circleVertical motion instead of horizontal motion
- 17. Multiple ChoiceWhich of the following is the unit for centripetal force?Jm/s2kg⋅m/sN
- 18. Multiple ChoiceThe time taken for one complete circuit is called the...PeriodFrequencyAngular velocity
- 19. Multiple ChoiceAssuming Andromeda rotates at a uniform rate, which stars are moving the fastest?Stars closest to centerStars furthest from the centerStars with the hottest temperatureStars with the coldest temperature
- 20. Multiple ChoiceIs it possible for an object moving with a constant speed to accelerate? Explain.
A) No, if the speed is constant then the acceleration is equal to zero. B) No, an object can accelerate only if there is a net force acting on it.
C) Yes, although the speed is constant, the direction of the velocity can be changing.
D) Yes, if an object is moving it can experience accelerationABCD - Answer choicesTagsAnswer choicesTags