AAPT Quiz PhysicsBowl 2013 (Part 1)
All Division I students, START HERE.
All Division II students – skip the first 10 questions, begin on #11.
*** Treat g = 10 m/s2 for ALL questions #1-#50

1. Red light from a laser is noted to have a wavelength of 632.8 nanometers. Which one of the following choices best represents the meaning of the prefix nano?
The next two questions share the same information Base your answers to questions 2 and 3 on the information and diagram below.

 A small object is released from rest and reaches the ground in a time of 2.50 s. Neglect air resistance.
2. With what speed does the object reach the ground?
3. From what height above the ground was the object released?

4. A scientist calculated a quantity that was equal to one light-year. Which one of the following choices represents the type of quantity that the scientist calculated?
5. At an instant of time t, a point object of mass M moves with velocity has acceleration and is at position (x, y). In what direction must the linear momentum of the object be directed at this instant?

6. A 1.50 m-long string clamped at both ends is vibrating at its second harmonic. What is the wavelength associated with the string for this scenario?
7. Two identical particles are fixed in place a distance of 0.50 m apart. The electric force that one particle exerts on the other has a magnitude of 3.00 N. Which one of the following choices best represents the magnitude of each particle’s charge?
8. Some standard household lights are being replaced with LEDs. LED is the acronym for which one of the following choices?

9. A simple pendulum oscillates with a period of 2.0 s. If the maximum oscillation of the pendulum is 4º from equilibrium, what is the length of the string for this pendulum?
10. An object is thrown straight upward. The object remains in free fall until it returns to its initial launch point. Which one of the following graphs could represent the velocity of the object as a function of time during its flight?
All Division 01 students, continue to question #40.
All Division 02 students, START HERE. Numbers 1 – 10 on your answer sheet should be blank. Your first answer should be for #11.
*** Treat g = 10 m/s2 for ALL questions #1 – #50.

11. There was great excitement in the physics community because of an announcement from the LHC during the summer of 2012. Which one of the following choices best represents the reason for the excitement?

12. It takes the Earth one day to rotate about its axis. Which one of the following choices best represents the time that it takes the Moon to make one rotation about its axis?
13. Which one of the following choices represents the measurement with the most number of significant digits?
14. A small ball is thrown at an angle of 30º above the horizontal ground with a speed of 20.0 m/s. To what maximum height above the launch point does the ball rise during its motion? Ignore air resistance.
15. In a circuit, the flow of electrons in a horizontal wire produces a constant current of 3.20 A for a time of 3.0 hr. Which one of the following choices best represents the number of electrons that pass through a vertical cross-section of the wire during this time?
16. A block initially moving at 8.0 m⁄s accelerates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choices best represents the coefficient of kinetic friction between the surface and the block?
17. A position vs. time graph of a particle moving along a horizontal axis is shown. What is the total distance traveled by the particle from t = 0 s to t = 10 s?

18. Which one of the following choices correctly identifies all of the listed situations for which there is a non-zero acceleration?

• Situation I : A point object moves in a straight line with increasing speed.
• Situation II : A point object moves in a circular path with constant speed.
• Situation III : A point objects moves in a circular path with decreasing speed.
19. Which physicist won the Nobel Prize in physics partly for the explanation of the photoelectric effect?
20. A sample of ideal gas at a temperature of 40.0º is in a container of volume 3.50 x 10-2 m3. If the pressure of the gas is 0.50 atm, how many molecules of the gas are in the container?
21. The following nuclear reaction occurs: What is
22. Four resistors, each of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor. This set of three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangement of four resistors?
23. A small object of mass 11.0 g is at rest 30.0 cm from a horizontal disk’s center. The disk starts to rotate from rest about its center with a constant angular acceleration of 4.50 rad/s2. What is the magnitude of the net force acting on the object after a time of t = (1/3) s if the object remains at rest with respect to the disk?
24. Which one of the following statements best describes Huygens’s Principle?

25. An ideal fluid completely fills a small horizontal tube that has a narrowing cross-sectional area as seen in the figure. Which one of the following choices best describes what has happened to the fluid’s speed and its associated pressure in the narrower region as compared to the wider region?