1013

Run Multiple Choice Generator at h:\shares\physics

Run Core Problems by giving the program qzz as your 'course'--enter this when asked for your 3-digit course number. Do the Physics Quiz 1013.
If you miss a problem be sure to click on Comment and explain what you do and do not understand about the question and the given solution.

yes	n	aAve = vAve / `dt .
yes	n	aAve = vAve / `dt .
no	n	If the net force exerted on a system is opposite to the direction of motion then the KE of the system will increase.
no	n	The average velocity occurs at the final instant.
yes	n	When you push a book across a table you give it energy of motion. When you release the book it immediately stops, instantly dissipating all its energy of motion.
yes	n	Is `ds = (vf - v0) / 2 * `dt an equation of uniformly accelerated motion?
yes	n	When you push a book across a table you give it energy of motion. When you release the book and it slides across the table, eventually coming to rest, the energy of motion is gradually dissipated against frictional forces. This dissipated energy is then returned to the book and it regains most of its energy of motion.
yes	n	If we observe 75.0 cycles of a pendulum in 65.2 seconds then The period is 1.15 seconds.
no	n	Halving the length doubles the period.
yes	n	When you push a book across a table you give it energy of motion. When you release the book and it slides to rest the energy of motion is gradually changed to stored energy, which can then be converted back into energy of motion.
yes	n	Is `ds = (vf - v0) / `dt * 2 an equation of uniformly accelerated motion?
yes	n	If we observe 75.0 cycles of a pendulum in 65.2 seconds then The frequency is .869 cycles / second.
yes	n	Decreasing the length by factor sqrt(2) doubles the period.
no	n	If a marble rolls from rest down an incline of length 111. cm in 11.3 seconds, starting at clock time 0, and if the graph of its velocity vs. clock time is a straight line, then assuming that the direction down the ramp is positive: The average velocity is closer to the initial velocity than to the final velocity.
yes	n	Is vf = v0 + a `ds an equation of uniformly accelerated motion?
yes	n	(v1 - t1) / (v2 - t2), where v1 and v2 are the two values of v that occur when t takes respsective values t1 and t2.
yes	n	Is `ds = v0 `dt + 2 a `ds an equation of uniformly accelerated motion?
yes	n	Is `ds = v0 `dt + 2 a `ds an equation of uniformly accelerated motion?
yes	n	Is `ds = v0 `dt + 2 a `ds an equation of uniformly accelerated motion?
yes	n	Halving the length doubles the frequency.
no	n	Is `ds = v0 `dt + .5 a `dt an equation of uniformly accelerated motion?
yes	n	The gravitational force between two masses does not depend on how far the objects are apart.
yes	n	Frictional forces will arise when two objects in contact are in motion parallel to the surface of contact, regardless of whether there is a force pushing their surfaces together.
yes	n	Is v0^2 = vf^2 + 2 a `ds an equation of uniformly accelerated motion?
yes	n	If a marble rolls from rest down an incline of length 111. cm in 11.3 seconds, starting at clock time 0, and if the graph of its velocity vs. clock time is a straight line, then assuming that the direction down the ramp is positive:The change in velocity is 9.82 cm/s.
no	n	Is vf^2 = v0^2 + 2 a `dt an equation of uniformly accelerated motion?

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