PhysicsLAB NY Regents Exams
January 2003, Part 3

Constants        Formulas

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41 The spring of a toy car is wound by pushing the car backward with an average force of 15 newtons through a distance of 0.50 meter. How much elastic potential  energy is stored in the car’s spring during this process?

(1) 1.9 J
(2) 7.5 J
(3) 30. J
(4) 56 J

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42 The graph below shows the relationship between the potential difference across a metallic conductor and the electric current through the conductor at constant temperature T1

Which graph best represents the relationship between potential difference and current for the same conductor maintained at a higher constant temperature, T2?

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43 The diagram below shows a circuit with two resistors. 

What is the reading on ammeter A?

(1) 1.3 A
(2) 1.5 A
(3) 3.0 A
(4) 0.75 A

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44 The diagram below shows a bar magnet. 

Which arrow best represents the direction of the needle of a compass placed at point A?

(1) ↑
(2) ↓
(3) →
(4) ←

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45 Which graph best represents the motion of a block accelerating uniformly down an inclined plane?

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Note that question 46 has only three choices.

46 The graph below shows elongation as a function of the applied force for two springs, A and B. 

Compared to the spring constant for spring A, the spring constant for spring B is

(1) smaller
(2) larger
(3) the same

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47 The diagram below represents currents in a segment of an electric circuit. 

What is the reading of ammeter A?

(1) 1 A
(2) 2 A
(3) 3 A
(4) 4 A


Base your answers to questions 48 and 49 on the diagram below, which represents a light ray traveling from air to Lucite to medium Y and back into air.

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48 The sine of angle face="Symbol">qx is
(1) 0.333
(2) 0.500
(3) 0.707
(4) 0.886
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49 Light travels slowest in

(1) air, only
(2) Lucite, only
(3) medium Y, only
(4) air, Lucite, and medium Y

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50 The diagram below shows two pulses traveling toward each other in a uniform medium. 

Which diagram best represents the medium when the pulses meet at point X?

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An outfielder throws a baseball to the first baseman at a speed of 19.6 meters per second and an angle of 30. above the horizontal.

51 Which pair represents the initial horizontal velocity (vx) and initial vertical velocity (vy) of the baseball?

(1) vx = 17.0 m/s, vy = 9.80 m/s
(2) vx = 9.80 m/s, vy = 17.0 m/s
(3) vx = 19.4 m/s, vy = 5.90 m/s
(4) vx = 19.6 m/s, vy = 19.6 m/s

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Base your answer to question 54 on the circuit diagram below, which shows two resistors connected to a 24-volt source of potential difference.

54 What is the total resistance of the circuit?

(1) 0.42 Ω
(2) 2.4 Ω
(3) 5.0 Ω
(4) 10.





Additional Tests
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