Question

12/18/2018 1. One inch is mostly close to a. 2.54 cm b. 12 cm c. 3.33 cm 2. 356 gram is converted to milligram as a. 0.356 mg b. 3.56 mg 356,000 mg 3. In an experiment measuring velocity y as a function of time x, the data were plotted as a straight line. Taking two data points (K a. 1 m/s b. 2 m/s C 3 m/s 6s; ye2 m/s), ( 10 s; y 10 m/s), the slope of the line is 4. In the experiment of acceleration due to gravity, you measured g-9.4 m/s while the standard value is g-9.8 m/s. The percent error is calculated to be a. 0.4% b.4% c.40% 5. In the experiment of acceleration due to gravity g, which conclusion is correct concerning acceleration due to gravity g? a. g should be a constant 9.8 m/s b. g should increases with increasing of height. c 8 should decreases with increasing of height 6. Which is most likely NOT the source of error in the Atwood's machine experiment for Newton's Second Law? a. b. c. Falling time measurement error Rotation of the pulley Friction of string over the puley 7. You measured spring constant of a spring by adding different masses. The five results are 34 N/m, 36 N/s,40 N/m, 32 N/m and 41 N/m. The average value of spring constant is a. 34.4 N b. 35.5 N/m c. 36 6 N/m 8. Which of the following is NOT required to calculate lever arm da in the rotational equilibrium experiments? Mass of hanger a. b. c. Mass of ruler Mass of clamp 9 6 ml is converted to m to be a. 0.000006 m b. 0006 m C. 0.6 m 10. One copper cylinder has identical shape and size as one steel cylinder. if both are immersed into water, which one will experience larger buoyant force? a. Copper one. b. Steel one. С. They should experience same buoyant force.

Answer 1

Mass lo