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Guide Questions for Physics I.
At the indicated stage of the course you should be able to answer all the associated questions accurately without reference to notes. Preferably you will also be able to state and answer all, or at least most of the questions (or perhaps an equivalent set of questions) without notes.
It is suggested that you periodically copy these questions into a document and insert your answers as indicated, then submit the document for the instructor's review.
These ideas alone are not sufficient to guarantee success in your course, but they do form a core structure, a basis from which to master the skills and concepts that will lead to success. In working through the assignments for the course you should think in terms of these definitions and quantities.
1. What is the definition of rate of change?
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2. What is the definition of average velocity?
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3. What is the definition of average acceleration?
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4. What are the four equations of uniformly accelerated motion and how do they
follow from the definitions of velocity, acceleration, and the linearity of the
v vs. t graph?
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5. What are the seven quantities in terms of which we understand uniformly accelerated motion and what are the standard units of each?
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6.
What are the five quantities used in the equations of uniformly accelerated
motion and what are the standard units of each?
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7. Given a graph of one
quantity vs. another, how do we calculate the area beneath a straight line
segment on the graph and the slopes of the segment,
and how do we interpret the area and the slope?
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You should know the above by the time you take the Major Quiz.
8. What is the definition of work and what are its units?
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9. What is the definition of kinetic energy and what are its units?
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10. What is the definition of potential energy and what are its units?
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11. What does the work-kinetic energy theorem say?
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12. What does the impulse-momentum theorem say?
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13. How are the work-energy theorem and the impulse-momentum theorem related to the equations of uniformly accelerated motion?
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14. What is the work-energy theorem in terms of work done by nonconservative forces, change in KE and change in PE, and how does this theorem make sense?
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15. How do you find the components of a vector given its direction and magnitude? How do you find the direction and magnitude of a vector given its components?
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You should know the above by the time you take Test 1.
16. How do you find the magnitude and direction of the gravitational force between two masses, given the positions of the masses?
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17. How do you find the velocity of a given circular orbit of a satellite about a planet of given mass?
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18. How do you find the gravitational potential energy of a given mass at a given distance from the center of a given planet?
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19. For a planet in an elliptical orbit with the planet at one focus of the ellipse, how do you find the change in kinetic energy between the point of closest approach and the point at which the satellite is at its greatest distance from the planet?
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20. What is the definition of a radian and how do we convert from radians to degrees, and vice versa?
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21. What is the definition of torque and what are its units?
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22. What is the definition of moment of inertia and what are its units?
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23. If you apply a given torque to an object with a given moment of inertia, how does the object respond?
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24. What are the details of the analogy between linear dynamics and rotational dynamics?
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You should know the above by the time you take Test 2.
25. When the radial line to a point moving about a circle of radius r is at angle theta, what are the coordinates of the point?
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26. When a point moving with angular velocity omega about a circle of radius r is at angle theta, what are the direction and magnitude of its velocity vector and what are the coordinates of the this vector?
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27. When a point moving with angular velocity omega about a circle of radius r is at angle theta, what are the direction and magnitude of its velocity vector and what are the x and y components of the this vector?
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28. When a point moving with angular velocity omega about a circle of radius r is at angle theta, what are the direction and magnitude of its centripetal acceleration vector and what are the components of the this vector?
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29. What is the angular position of a point moving with angular velocity omega around a circle of radius r at clock time t, assuming the point started at the angular position theta = 0? What therefore are the coordinates of its position, the components of its velocity vector and the components of its centripetal acceleration vector at this instant?
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You should know the above
by the time you take the final exam.
Click here for answers to Questions 1-15.
Answers to Questions 16-29 will be added soon. If you submit your responses and those answers have not been posted, please indicate this to the instructor.