PhysicsLAB AAPT Quiz
1998 Physics Quiz Bowl (Part 1)

1. Which of the following is not a vector quantity?
 
2. An observer hears a sound with frequency 400 hz. Its wavelength is approximately
 
3. An object in equilibrium has three forces, F1 of 30 N,  F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant of F1 and F2 is
 
4. As sound travels from steel into air, both its speed and its




 
5. Which of the following temperatures would be most appropriate to keep milk at inside a refrigerator?
 
6. When any four resistors are connected in parallel, the ____ each resistor is the same.
 
7. A heat engine takes in 200 J of thermal energy and performs 50 J of work in each cycle. What is its efficiency?
 
8. When two charged point-like objects are separated by a distance R, the force between them is F. If the distance between them is quadrupled, the force between them is
 
9. An electroscope is given a positive charge, causing its foil leaves to separate. When an object is brought near the top plate of the electroscope, the foils separate even further.
 
 
We could conclude




 
10. A charged particle with constant velocity enters a uniform magnetic field whose direction is parallel to the particle's velocity. The particle will




 
11. In the nuclear reaction 6 3Li + ? yields 7 3Li   the "?" represents
 
12. An alpha particle is the same as
 
13. When a falling object moves with terminal velocity, it




 
14. How long must a 2.5 m/s2 acceleration act to change the velocity of a 2.0-kg object by 3.0 m/s?
 
15. A freely falling object is found to be moving downward at 18 m/s. If it continues to fall, two seconds later the object would be moving with a speed of
 
16. If the unit for force is F, the unit for velocity v, and the unit for time T, then the unit for momentum is
 
17. Which diagram best represents what happens to a ray of light entering air from water? Air is at the top in all diagrams.
 
18. When a train is at rest, both a passenger on the train and a ticket seller on the station agree that the trains whistle produces sound at a frequency of 120 Hz. When the train is moving away from the station at 15 m/s, the passenger hears a frequency of ______ Hz and the ticket seller hears a frequency of ____ Hz.
 
19. In order to produce an enlarged, upright image of an object, you could use a




 
20. Wire I and wire II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistance
 




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