PHYSICS-1-QUIZ-BOWL-PPT.pdf

GENERAL PHYSICS 1 QUIZ BOWL 12 - STEM Date: September 19, 2024 EASY ROUND SUBJECT: CHEMISTRY TIME: 10 SECONDS 1) Which of the following is TRUE about significant figures? A. 0.080 has 3 SF C. 0.08 has 3 SF B. 80.0 has 3 SF D. 0.80 has 3 SF ANSWER : B. 80.0 h...

GENERAL PHYSICS 1 QUIZ BOWL 12 - STEM Date: September 19, 2024 EASY ROUND SUBJECT: CHEMISTRY TIME: 10 SECONDS 1) Which of the following is TRUE about significant figures? A. 0.080 has 3 SF C. 0.08 has 3 SF B. 80.0 has 3 SF D. 0.80 has 3 SF ANSWER : B. 80.0 has 3 SF  SUBJECT: PHYSICS TIME: 10 SECONDS 2) Which of the following describes uncertainty of measurement? A. It is the doubt that exists about the result of any measurement B. It is the expression of the statistical dispersion of the values attributed to measured accurate quantities. C. It can be attributed to the precision of the instruments. D. All of the choices are correct. ANSWER : D. All of the choices are correct.  SUBJECT: BIOLOGY TIME: 10 SECONDS 3) Which of the following pairs of displacements will give a resultant magnitude of 2m? A. 4m E & 2m E C. 4m W & 2m W B. 4m E & 2m W D. 4m E & 4m W ANSWER : B. 4m E & 2m W  SUBJECT: CHEMISTRY TIME: 10 SECONDS 4) If the velocity versus time graph of an object is a horizontal line, the object is __________________. A. moving with zero acceleration B. moving with constant non-zero acceleration C. at rest D. moving with increasing speed ANSWER : A. moving with zero acceleration  SUBJECT: BIOLOGY TIME: 10 SECONDS 5) An object moving in the +x direction experiences an acceleration of +2.0 m/s2. This means the object _________________. A. travels 2.0 m in every second B. is traveling at 2.0 m/s C. is decreasing its velocity by 2.0 m/s every second D. is increasing its velocity by 2.0 m/s every second  ANSWER : D. is increasing its velocity by 2.0 m/s every second END OF EASY ROUND AVERAGE ROUND SUBJECT: BIOLOGY TIME: 20 SECONDS 1) You drive 6.0 km at 50 km/h and then another 6.0 km at 90 km/h. Your average speed over the 12 km drive will be _________. A. greater than 70 km/h B. equal to 70 km/h C. less than 70 km/h D. exactly 38 km/h ANSWER : C. less than 70 km/h SUBJECT: PHYSICS TIME: 20 SECONDS 2) A reaction takes place that is expected to yield 171.9 g of product, but only yields 154.8 g. What is the percent error for this experiment? Final answer must be written in 1 SF. ANSWER : 10 %  SUBJECT: CHEMISTRY TIME: 20 SECONDS 3) Ball A is dropped from the top of a building. One second later, ball B is dropped from the same building. Neglect air resistance. As time progresses, the difference in their speeds _______________. A. increases C. remains constant B. decreases D. doubles ANSWER : C. remains constant SUBJECT: BIOLOGY TIME: 20 SECONDS 4) What do you call the speed that is being displayed on a vehicle’s speedometer?  ANSWER : Instantaneous speed SUBJECT: CHEMISTRY TIME: 20 SECONDS 5) An airplane traveling north at 220 meters per second encounters a 50.0 meters per second crosswind from west to east. Find the magnitude of the resultant velocity. Final answer must be in three significant figures. ANSWER : 226 m/s END OF AVERAGE ROUND DIFFICULT ROUND SUBJECT: CHEMISTRY TIME: 60 SECONDS 1) How long will it take for a stone to touch the ground if dropped from a 5000-cm building? Final answer must be in two decimal places. ANSWER : 3.19 s SUBJECT: BIOLOGY TIME: 60 SECONDS 2. A joggler tosses three balls alternately vertically upward. Each ball has an initial velocity of 5m/s. How high does each ball rise? Final answers must be in two decimal places. ANSWER : 1.28 m SUBJECT: PHYSICS TIME: 60 SECONDS 3) A bullet shot straight up returns to its starting point in 10 s. What is the initial speed of the bullet, assuming negligible air resistance? Final answer must be in two significant figures. ANSWER : 49 m/s  SUBJECT: CHEMISTRY TIME: 60 SECONDS 4) A package is dropped from a helicopter that is moving upward at 15 m/s. If it takes 8 s before the package strikes the ground, how high above the ground was the package when it was released? Neglect air resistance. Final answer must be in three significant figures. ANSWER : 194 m  SUBJECT: BIOLOGY TIME: 60 SECONDS 5) Two lovers had some quarrel and eventually decided to break. The young man went crying and runs back to his home with a velocity of 4.23 meters per second due east. The young girl runs home 2.36 m/s, 224⁰. What would be the direction of the resultant velocity of the two lovers? Final answer must be in two decimal places.  ANSWER : -32.95⁰ or 32.95⁰ S of E END OF DIFFICULT ROUND  END Thank You! ;)