PhysicsLAB AAPT Quiz
1999 Physics Quiz Bowl (Part 1)

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1. The change of distance per unit time without reference to a particular direction is called
 
2. Which of the following terms is NOT related conceptually to the others?
 
3. If the net force on an object were doubled while at the same time the mass of the object was halved, then the acceleration of the object is
 
4. If conventional (positive) electric current flows from left to right in a wire as shown in the diagram,
 
 
what is the direction of the magnetic field at point P?




 
5. A tractor-trailer truck is traveling down the road. The mass of the trailer is 4 times the mass of the tractor.
 
 
If the tractor accelerates forward, the force that the trailer applies on the tractor is




 
6. An airplane with air speed 120 km/h is heading due north in a wind blowing due east at 50 km/h. What is the ground speed of the plane?
 
7. In the absence of air resistance, if an object were to fall freely near the surface of the Moon,




 
8. A weight can be hung in any of the following four ways. In which case is the string most likely to break?
 
9. If air resistance can be neglected, what happens to the horizontal velocity component of a basketball as it is thrown to the basket from the free-throw line?




 
10. A simple machine can NOT do which of the following:




 
11. Assume that the Earth attracts John Glenn with a gravitational force F at the surface of the Earth. When he made his famous second flight in orbit, the gravitational force on John Glenn while he was in orbit was closest to which of the following?
 
12. Two boxes are accelerated to the right on a frictionless horizontal surface as shown. The larger box has a mass of 9 kilograms and the smaller box has a mass of 3 kilograms.
 
 
If a 24 newton horizontal force pulls on the larger box, with what force does the larger box pull on the smaller box?
 
13. A heating coil is rated 1200 watts and 120 volts. What is the maximum value of the current under these conditions?
 
14. A construction laborer holds a 20 kilogram sheet of wallboard 3 meters above the floor for 4 seconds. During these 4 seconds how much power was expended on the wallboard?
 
15. Given the graph of the velocity vs. time of a duck flying due south for the winter.
 
 
At what point did the duck stop its forward motion?
 
16. Which of the following principles best explains why large tractor-trailer trucks generally accelerate much more slowly that automobiles?




 
17. The diagram below shows the position and elapsed time of a car starting from rest and uniformly accelerating in a straight line.
 
 
What was the average velocity of the car during the third second?
 
18. The average acceleration during the entire 3 second interval is closest to
 
 
19. A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the skater's subsequent motion?




 
 20. What is the shape of the velocity time graph for an object with the position time graph shown in the diagram below?
 
 



 
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