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(01.08 HC)During an experiment, the time of an object was measured every 20 meters. Each researcher measured the object’s motion on different surfaces, noted as A, B, C, and D. Their average data of the trials are shown below. Distance (cm) 0 20 40 60 80 100 Time A (s) 0 5.23 10.11 14.68 18.54 23.36 Time B (s) 0 4.66 9.33 13.97 18.63 23.31 Time C (s) 0 3.57 7.44 11.32 16.98 23.28 Time D (s) 0 5.00 15.00 40.00 60.00 85.00 Which of the surfaces allowed the object to travel closest to a constant speed?

(01.09 MC)A position-time graph is shown below.Which of the following describes the speed-time graph for the position of the object?

(01.04 LC)Consider the common measurement: acceleration = 2.3 m/s2 down. Which of the following is considered the direction in this measurement?

(01.05 LC)A graph from an experiment is given below.Which of the following is the independent variable?

(01.08 MC)A position-time graph is shown.Calculate the slope of the line segment from t = 1 s to t = 2 s.

(01.04 LC)Consider the common measurement: velocity = 55 mph west. Which of the following is considered the magnitude in this measurement?

(01.05 MC)In an experiment, a student measured the volume of a substance while the mass was changed. The student measured up to five kilograms. The graph of the data is plotted below.Which of the following is an error the student made in creating an accurate graph?

(01.07 MC)The position of a driver each hour is shown on the graph below.What is the car’s average speed from the beginning of the trip until time t = 4.5 hour?

12.       What is the function of each of the following organelles.  (4 Points)             Mitochondria –               Lysosome –               Smooth endoplasmic reticulum –               Golgi apparatus –

2.         Describe 2 factors that affect the rate of a chemical reaction.  (4 Points)