Ps 1: Conceptual questions for kinematics of oscillatory motion

by Quirino Sugon Jr.

Oscillatory Motion.  Choose a word or phrase inside the parenthesis that makes the statement true.  Write your answer on the space provided before each number.

1. A particle is undergoing an vertical oscillation at a point labeled as the origin.  The particle is at the origin at t = 0, moves to its highest point at t = 2 s, goes back to the origin at t = 4 s, goes to its lowest point at 6 s, and goes back to the origin at 8 s.  The period of oscillation of the pendulum is (2 s, 4 s, 8 s),
2. The angular frequency of the pendulum is s.
3. The frequency of oscillation is (0.5, 0.25, 0.125) Hz.
4. If the highest point is 0.1 m from the origin, then the amplitude of oscillation is (0.1 m, 0.2 m)
5. Assume that positive y-axis points (downward, upward).
6. At its highest point, the position of the particle is (negative, zero, positive),
7. its velocity is (negative, zero, positive),
8. and its acceleration is (negative, zero, positive)
9. At its lowest point, the position of the particle is (negative, zero, positive),
10. its velocity is (negative, zero, positive),
11. and its (acceleration is (negative, zero, positive).
12. When the particle is about to go up starting from the origin, the position of the particle is (negative, zero, positive),
13. its velocity is (negative, zero, positive),
14. and its acceleration is (negative zero, positive)
15. When the particle is about to to go down starting from the origin, the position of the particle is (negative, zero, positive)
16. its velocity is (negative, zero, positive)
17. and its acceleration is (negative, zero, positive).
18. If we plot the vertical position of the particle as a function of time, the graph is a (cosine, sine, -cosine, -sine) function.
19. Using this result in (18), the graph of the velocity vs time is a (cosine, sine, -cosine, -sine) function
20. and the graph of the acceleration vs time is a (cosine, sine, -cosine, -sine) function.
21. The ratio of the amplitudes of velocity and position functions is (half, same as, double, square of) the angular velocity.
22. The ratio of the amplitudes of acceleration and position is (half, same as, double, square of) the angular velocity.

Ps 1 Reviewer for Kinematics: Identification questions from Hewitt’s Conceptual Physics

by Quirino Sugon Jr.

Trivia Questions from Hewitt Chapters 1, 3, 8, and 10

Identify what is described and write your answer on the space provided before each number.

1. Body of knowledge that describes the order within nature and the causes of that order.
2. Greek geographer and mathematician who computed the size of the earth in 235 BC.
3. Greek astronomer who was the first to suggest that the earth spins on its axis.
4. An educated guess that is presumed to be factual until tested by experiments.
5.  A close agreement of competent observers on a series of observations of the same phenomenon.
6. A hypothesis that has been tested and has not been contradicted.
7. An orderly method for gaining, organizing, and applying new knowledge.
8. A synthesis of a large body of information that encompasses well-tested and verified hypotheses about certain aspects of the natural world.
9. The old name for science.
10. Who said the following lines: “Knowledge is very much more useful than harmful and that fear of knowledge is very much more often harmful than useful.
11. Adjective used by scientists to describe a theory which unites many ideas in a simple way.
12. Measure of how fast something moves, measured by unit of distance divided by a unit of time.
13. Total distance covered divided by time interval to cover that distance
14. A quantity described by speed and direction of motion
15. Measure of how quickly the velocity changes.
16. A state wherein the object falls under the influence of gravity alone
17. Speed of something moving in a straight line
18. Speed of something moving in a circular motion
19. Number of rotations or revolutions per unit of time
20. An object that is projected by some means and continues in motion by its own inertia.
21. Trajectory of a projectile that accelerates only on the vertical direction while moving at constant horizontal velocity.
22. Projectile launch angle which gives the maximum horizontal range.
23. The closed path taken by a point that moves in such a way that the sum of its distances from two fixed points (called foci) is constant.
24. Law that states that each planet moves in an elliptical orbit with the sun at one focus of the ellipse.
25. Law that states that the line from the sun to any planet sweeps out equal areas of space in equal times
26. Law that states that the squares of the times of revolutions (periods) of the planets are proportional to the cubes of their average distances from the sun.
27. Position of the satellite when it is farthest from the sun.
28. Position of the satellite when it is closest to the sun.
29. Critical speed for the satellite to outrun gravity and escape from the earth.
30. First probe to escape the solar system which was launched in the year 1972.