C D B C D A B B & C C B D C & D C C A C C B Free Response a. 5 cm equals 0.2 J b. 160 N/m e. 0.1 J c. 0.15 J a. 1.92 m/s d. Any point on the curve where the b. 40O y-axis equals 0.1 J c. 1.8 s e. 1 m/s d. 0.96 J a. 4 cm e. 0.73 m b. 2 m/s a. c. 500 N/m b. d. Any on the curve where the c. d. a. b. c. a. The student could use some known masses, a ruler, and a stand. Hang the rubber band on the stand and measure its length. Then hang the various masses and measure the amounts they stretch the rubber band (which is the displacement from equilibrium). Since and , the student can graph the force (which is the weight of the mass) vs. the displacement from equilibrium. If it is a linear relationship, then the rubber band behaves like and ideal spring. b. The student would need the unknown mass, the rubber band, a stand, and a timer. The student should attach the rubber band to the stand and the mass to the rubber band. Then pull the mass down to set it into SHM and time 10 cycles. Divide that time by 10 to calculate the period. Now the student can use the equation to find the unknown mass.
C D C C C D A B C C B B D A B C B & C C & D Free Response a. 5 cm b. 160 N/m c. 0.15 J d. Any point on the curve where the y-axis equals 0.1 J e. 1 m/s a. 4 cm b. 2 m/s c. 500 N/m d. Any on the curve where the equals 0.2 J e. 0.1 J a. 1.92 m/s b. 40O c. 1.8 s d. 0.96 J e. 0.73 m a. b. c. d. a. b. c. a. The student could use some known masses, a ruler, and a stand. Hang the rubber band on the stand and measure its length. Then hang the various masses and measure the amounts they stretch the rubber band (which is the displacement from equilibrium). Since and , the student can graph the force (which is the weight of the mass) vs. the displacement from equilibrium. If it is a linear relationship, then the rubber band behaves like and ideal spring. b. The student would need the unknown mass, the rubber band, a stand, and a timer. The student should attach the rubber band to the stand and the mass to the rubber band. Then pull the mass down to set it into SHM and time 10 cycles. Divide that time by 10 to calculate the period. Now the student can use the equation to find the unknown mass.
ap-phys1_ap1-shm-practice-problems_2015-12-22.docx