074 • Name:

  1. The graph shows soap density data. Use the graphed data to answer the following questions.
    Soap density Soap density Dial Basic Neutrana Ivory volume (cm³) mass (g) y-axis labels 0 10 20 30 40 50 60 70 80 90 100 x-axis labels 0 10 20 30 40 50 60 70 80 90 100
    1. __________ _____ Calculate the density ρ of Dial Basic soap.
    2. ______________ Based on the density, will Dial Basic soap float or sink?
    3. __________ _____ Using the density above, calculate the mass of a bar of Dial Basic soap that has a volume of 100 cm³.
    4. __________ _____ Using the density above, calculate the volume of a bar of Dial Basic soap that has a mass of 250 grams.
    5. __________ _____ Calculate the density ρ of Ivory soap.
    6. ______________ Based on the density, will Ivory soap float or sink?
    7. __________ _____ Calculate the density ρ of Neutrana soap.
    8. ______________ Critical thinking: Based on the density, will Neutrana soap float or sink?
  2. A RipStik moved at three different velocities (speeds). The data was gathered in the tables and plotted on the graph seen below.
    Three lines on a chart
    1. __________ __________ Calculate the velocity (speed) for the first table.
    2. __________ __________ Calculate the velocity (speed) for the second table.
    3. __________ __________ Calculate the velocity (speed) for the third table.
    4. __________ __________ Based on the second table, how far will the RipStik travel in 36 seconds?
    5. __________ __________ Based on the second table, how long in seconds for the RipStik to travel 3000 centimeters?
  3. The data is the time t1 versus the distance (height) d1 for a falling ball in laboratory three:
    Desmos parabolic regression
    1. __________ __________ Based on the information above, what is the experimental acceleration of gravity g?
    2. What feature of the graph tells you that the ball is falling at a faster and faster velocity with increasing height?
  4. A marble with a mass of 5.0 grams is 20 centimeters above a table on an orange plastic track. The marble is released and rolls down the ramp onto the table. Use an acceleration of gravity g equal to 980 cm/s² for this question.
    1. __________ __________ Calculate the Gravitational Potential Energy of the marble before the marble is released using the formula GPE = mgh.
    2. __________ __________ The kinetic energy at the bottom of the ramp should be equal to the GPE the marble had at the top of the ramp. Solving Kinetic Energy KE = ½mѵ² for ѵ, calculate the velocity that the marble should have at the bottom of the ramp.
    3. __________ In the laboratory using an actual marble and the orange track, will the marble have the speed you just calculated?
    4. __________ Will the actual marble speed be faster OR slower than you have calculated?
  5. A student rolled marbles into a line of five marbles.
    Marbles on ruler track
    1. What happens when one marble is rolled into five marbles on a ruler track?
    2. How is the number of marbles rolling into a line of marbles related to the number rolling out of a line of marbles?
    3. What is the name of the physical science law are the marbles obeying?
  6. Provide definitions for the following:
    1. Newton's first law of motion.
    2. Newton's second law of motion.
    3. Newton's third law of motion.
  7. Temperatures in Celsius:
  8. Explain the difference between heat and temperature.
  9. On Wednesday we started the search for Binky near room A101.
    1. _________ _____ Room A101 is at E 158° 09.663'. Binky was at E 158° 09.538'. Calculate the difference in arcminutes between A101 and Binky.
    2. _________ _____Use the difference in arc minutes from part a) and the experimental value of 1850 meters per arcminute of longitude here on Pohnpei to calculate the distance in meters from A101 to Binky.
  10. ___________________ If you were to travel straight East from Pohnpei to the prime meridian, what country would you be in when you reached the prime meridian?
  11. ___________________ Which way is the equator from here on campus, towards Kitti or towards Kolonia?
  12. Explain the hobby/sport of geocaching.