in need of an answering asap (take your time answering though) numbers #1-6 (show work please and thank you)
Activity B2 Required Skills Inquiry Lab Student Reference 5, 7 Initiating and Planning Performing and Recording Studying Uniform Motion Analyzing and Interpreting Communication and Teamwork The Question 2 At one end of the masking tape, make a pencil mark What kind of motion do falling dominoes exhibit? designating the starting position, 0.00 cm. From this starting position, make a mark every 50.00 cm on the masking tape, using the metre-stick or measuring tape. The Hypothesis (3 Place the metre-stick or measuring tape parallel to the State a hypothesis concerning the motion of the falling masking tape at the start position so that the 0.00 mark dominoes. Be sure to write an "if/then" statement. aligns with the 0.00 mark on the masking tape. Variables 4 Place the first domino at the 0.00 cm mark on the Identify the type of data you will collect to support your masking tape (Figure B1.11). Place the next domino at hypothesis. State the manipulated, responding, and 4.00 cm, and continue lining up the dominoes every controlled variables in this investigation. 4.00 cm until you have at least 65 dominoes in a line. One member of the group (each group has 6 students) positions him- or herself at the 0.00 cm, 50.00 cm, Materials and Equipment 100.00 cm, 150.00 cm, 200.00 cm, and 250.00 cm 65 dominoes (2.5 cm x 5.0 cm) marks. Each student has a stopwatch except for the student at the 0.00-cm mark. metre-stick or measuring tape 5 stopwatches When the student at the 0.00-cm mark says "Start," he or she pushes over the first domino and the other masking tape students start their stopwatches. 7 Each student stops his or her stopwatch when the toppling dominoes reach his or her mark on the tape. Procedure B Record your results in a table like the one below. 1 Paste 3.00 m of masking tape on a flat table or counter- Do at least three trials of the experiment, and calculate top, making sure that the masking tape is perfectly the average values of the times. Record the average straight. values in your notebook. Distance d (cm) Time Elapsed t(s) 0.00 0.0 50.00 100.00 2.00 6.00 8.20 10. 00 Analyzing and Interpreting FIGURE B1.11 Step 4 1. Identify the manipulated and the responding variables in this experiment. 34 Unit B: Energy Flow in Technological Systems 2. Draw a distance-time graph. Remember that, although 8. Draw a speed-time interval graph. the manipulated variable should be on the x-axis of your 9. On the graph, determine the slope of the line of best fit. graph, time (which is the responding variable in this experiment) is always plotted on the x-axis. 10. Indicate on the graph what the value of this slope represents. 3. What type of line is your line of best fit? 11. On the graph, determine the area under the line for the 4. What type of motion is depicted by your line of best fit? entire time. 5. Determine the slope of the line of best fit of the graph. 12. Indicate on the graph what the value of this area What does this value represent? represents. 6. From your data, calculate the speed during each time interval by determining the distance travelled during the Forming Conclusions interval and substituting the values in the formula 13. Study the distance travelled-time graph. Explain how V = Ad At this graph shows that the falling dominoes are 7. Using your calculated values for the speed of each time displaying uniform motion. interval, create a table like the one below. Make sure 14. Study the speed-time graph. Explain how this graph your table has a title. shows that the falling dominoes are displaying uniform motion. Time Interval At (s) Speed v (m/s)
