074 • Name:

1. The graph shows soap density data. Use the graphed data to answer the following questions.
   
   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 160 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. For the following RipStik velocity chart (note that the RipStik starts from 500 cm!):
   
   1. __________ _____ Determine the velocity ѵ of the RipStik.
   2. __________ _____ If the RipStik continued at that velocity for 30 seconds, how many centimeters would the RipStik travel?
   3. __________ _____ If the RipStik continued at that velocity for 5600 centimeters, how many seconds would the RipStik travel?
3. Fastlynn ran 24200 centimeters in 88 seconds.
   1. __________ _____ Calculate Fastlynn's speed in centimeters per second.
   2. _______________ Is Fastlynn faster or slower than 202 cm/s speed of the RipStik on Monday 22 August?.
   3. __________ seconds. How long in seconds for Fastlynn to run 100,000 centimeters (equals one kilometer)?
4. The time versus distance for two runs of a RipStik were recorded in the table below.
   
   1. Plot the data using circles and squares for A and B respectively.
   2. __________ __________ Calculate the velocity for RipStik run A.
   3. __________ __________ Calculate the velocity for RipStik B from 0 to 2 seconds.
   4. __________ __________ Calculate the velocity for RipStik B from 2 to 4 seconds.
   5. __________ __________ Based on the above two calculations, by how much did the velocity increase for RipStik B?
   6. __________ __________ Calculate the average acceleration of RipStik B over the four seconds from 0 to 4 seconds by dividing the change in velocity by four seconds.
   7. __________ __________ The curve on the graph is the acceleration of RipStik. Using the point D (5 seconds, 800 cm) and the equation d = ½at², calculate the acceleration of the RipStik.
5. Thursday laboratory measurement of the acceleration of gravity:
   1. __________ _____ What was the acceleration of gravity that you measured on Thursday?
   2. ___________________ Given that the actual acceleration of gravity is g = 980 cm/s², was your experimentally measured value for the acceleration of gravity too high or too low?
6. When a RipStik rolls down hill...
   1. ☐ The RipStik rolls at a constant rate of speed.
   2. ☐ The RipStik rolls less than twice as fast from twice as high.
   3. ☐ The RipStik rolls twice as fast from twice as high.
   4. ☐ The RipStik rolls more than twice as fast from twice as high.
7. The chart below has three height versus distance functions plotted, each labelled by a letter: A, B, or C. Match the function by letter to the description below.
   
   1. ___ With increasing height, the velocity increases at an increasing rate.
   2. ___ With increasing height, the velocity increases at a constant rate.
   3. ___ With increasing height, the velocity increases at a decreasing rate.
   4. ___ Which of these functions depicts what really happened on Monday: A, B, or C?
8. My Corona EXiV car has a mass of 1150 kg. Driving at the state speed limit of 11.1 m/s (that is forty kilometers per hour), calculate the following:
   1. __________ __________ ...the momentum p of the car.
   2. __________ __________ ...the kinetic energy KE of the car.
9. A marble with a mass of 5.0 grams is 40 centimeters above a table on a banana leaf marble ramp. 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.
   2. __________ __________ Determine the Kinetic Energy that the marble should have at the bottom of the ramp.
   3. __________ __________ Calculate the velocity that the marble should have at the bottom of the ramp.
   4. __________ In the laboratory using an actual marble and banana leaf, will the marble have the speed you just calculated?
   5. __________ Will the actual marble be faster OR slower?
10. 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.
11. What are the following temperatures in Celsius?
    • _________℃ Ice melts/water freezes.
    • _________℃ Coconut oil melts/freezes.
    • _________℃ Typical daily indoor room temperature in Pohnpei.
    • _________℃ Healthy living human body core temperature.
    • _________℃ Water boils.
12. Explain the difference between heat and temperature.
13. In general, what types of materials conduct heat?
14. In general, what types of materials do not conduct heat?
15. The graphs show force of friction data for weight, grit, and surface area from presentations on Friday.
    
    Weight: force = 0.3052×weight
    Grit: force = 0.0069×grit + 37.37
    Surface area: force = 0.000×surface area + 300
    1. _______________ Based on the data gathered and shared in class, which variable has the most effect on the force of friction?
    2. ______________ __________ If a weight of 1000 grams were put on the glass sled used to generate the weight graph, what would be the force of friction?
16. Define latitude:
17. Define longitude:
18. Which way do lines of longitude run on campus? Describe!
19. _________ _____ The classroom is at E 158° 09.651'. I hid at E 158° 09.314'. Calculate the difference in arcminutes between the classroom and where I was hiding.
20. _________ _____ The classroom is at E 158° 09.651'. I hid at E 158° 09.314'. Use a value of 1842 meters per arcminute to calculate the distance in meters from the classroom to where I was hiding.

$\text{slope}=\frac{(y_2-y_1)}{(x_2-x_1)}$ ☁ $ѵ=\frac{\Delta d}{\Delta t}$ ☁ distance d = velocity ѵ × time t ☁ $\mathrm{acceleration}=\frac{\Delta ѵ}{\Delta t}$ ☁ ѵ = at ☁ ѵ = gt ☁ d = ½at² ☁ d = ½gt² ☁ where g is the acceleration of gravity ☁ g = 980 cm/s² ☁ Gravitational Potential Energy GPE = mgh where the acceleration of gravity g = 980 cm/s² ☁ Kinetic Energy KE = ½mѵ² ☁ momentum p = mass m × velocity ѵ ☁ $\mathrm{Force}=\frac{\Delta \mathrm{momentum}}{\Delta \mathrm{time}}$ ☁ Force F = mass m × acceleration a