Rotational and Circular motion
1. A bug is spinning on a platform with constant speed,
what was the direction of acceleration at the blue point?
E none o...
Answer to previous slide
A: acceleration vector
always points radially
for constant speed
Beginning
of test
End of test
CT cir 1
Ct 1 cir answer
2. A bug is on a platform spinning clockwise
& speeding up. Which best shows the bug’s
acceleration direction at this spot...
Answer to previous slide
B: If the acceleration is
constant and increasing,
the vector will be not
radial, but off to the ...
ctrot3
Ctr rot 3 ans E
3. Crt Rot 1
3
CRT rot 1 ans C, B
4. CTcirc 3
4
Ct circ 3 ans c
5. CTR rot 2
5
Ctr rot 2 ans
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Rotational and circular motion clicker questions

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  • From Dubson 2010 fall 2007 (college version of same question)
    A to left
  • B
  • Also show next slides from college class to see vector answer.
  • Make a challenge to have the students use either Lady Bug or Torque to make slides of explanations for these questions.
  • Rotational and circular motion clicker questions

    1. 1. Rotational and Circular motion
    2. 2. 1. A bug is spinning on a platform with constant speed, what was the direction of acceleration at the blue point? E none of these Velocity is the green vector D A C B Beginning of test End of test
    3. 3. Answer to previous slide A: acceleration vector always points radially for constant speed Beginning of test End of test
    4. 4. CT cir 1
    5. 5. Ct 1 cir answer
    6. 6. 2. A bug is on a platform spinning clockwise & speeding up. Which best shows the bug’s acceleration direction at this spot? A B C D E
    7. 7. Answer to previous slide B: If the acceleration is constant and increasing, the vector will be not radial, but off to the same side of the radius as the velocity vector.
    8. 8. ctrot3
    9. 9. Ctr rot 3 ans E
    10. 10. 3. Crt Rot 1 3
    11. 11. CRT rot 1 ans C, B
    12. 12. 4. CTcirc 3 4
    13. 13. Ct circ 3 ans c
    14. 14. 5. CTR rot 2 5
    15. 15. Ctr rot 2 ans

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