psf2 074 ☈ 12 June 2015 Name:

1. A student gathered the data seen in the table below.
   
   1. Plot the soap data on the graph.
   2. __________ __________ Calculate the density of the soap. Include the units with your answer.
   3. Based on the slope, will the soap [float] OR [sink]?
   4. Based on the slope, is this likely to be [Ivory] OR [Dial] soap?
2. Where does the Amazon jungle get the nutrient phosphorus from?
3. How does the freezing of ocean water in Antartica contribute to driving global ocean currents?
4. When a hurricane (typhoon) develops hot towers what does that indicate is going to happen to the storm?
5. The graph shows the time versus distance data gathered for four different RipStik runs during laboratory 02.
   
   1. __________ _____ Determine the velocity ѵ of run A.
   2. __________ _____ Determine the velocity ѵ of run B.
   3. __________ _____ Determine the velocity ѵ of run C.
   4. __________ _____ Determine the velocity ѵ of run D.
6. A RipStik was accelerated from rest (0 cm/s) to 250 cm/s in five seconds.
   1. _______________ _________ Based on the data, what was the acceleration of the RipStik?
   2. _______________ _________ If I continued that same acceleration for ten seconds, how far would I go in centimeters?
7. Write Newton's first law of motion.
8. Write Newton's second law of motion.
9. Write Newton's third law of motion.
10. The graph shows pulley data gathered by a student in physical science.
    1. Plot the data provided in the table on the graph below and draw a line through the points.
       
    2. ____________ Based on the data, what is the Actual Mechanical Advantage for the pulley system?
    3. ____________ The pulley system had four load lines. What is the Ideal Mechanical Advantage?
    4. ____________ Use the preceding two questions to calculate the efficiency of the pulley system.
    5. ______________ What was the likely cause of the efficiency being less than 100%?
11. Temperatures in Celsius:
    • _________℃ What is the temperature of a mix of melting ice and water?
    • _________℃ What is the temperature of melting solidified coconut oil?
    • _________℃ What is the typical daily indoor room temperature in Pohnpei?
    • _________℃ What is the temperature of the healthy living human body?
    • _________℃ What is the temperature of a boiling water?
12. Explain the difference between heat and temperature.
13. Explain the meaning of the following types of heat movement:
    • Conduction:
    • Convection:
    • Radiation:
14. ______________ When walking straight East, which number would change on the GPS unit, the N 06° 54.566' or the E 158° 09.597' number?
15. _________ _____ The classroom is at E 158° 09.651'. On Wednesday Binky was at E 158° 09.337'. Use a value of 1820 meters per minute to calculate the distance in meters from the classroom to Binky.
16. ____________________ Plot the data in table two on the graph. Calculate the slope of the line.
    

$\text{Body mass index}=\frac{\text{mass in kg}}{{\text{height in meters}}^2}$
$\text{slope}=\frac{(y_2-y_1)}{(x_2-x_1)}$
$\text{percent error}=\frac{(\text{experimental value}-\text{expected value})}{\left(\text{expected value}\right)}$
Volume V = length l × width w × height h
mass m = density ρ × Volume V
$\rho =\frac{m}{V}$
distance d = velocity ѵ × time t
$\text{velocity}ѵ=\frac{\Delta d}{\Delta t}$
$\text{acceleration}a=\frac{\Delta ѵ}{\Delta t}$
velocity ѵ = acceleration a × time t
d = ½at²
d = ½gt²
where g is the acceleration of gravity, g = 979 cm/s²
Gravitational Potential Energy GPE = mgh
acceleration of gravity g = 979 cm/s²
Kinetic Energy KE = ½mѵ²
momentum = mass m × velocity ѵ
Force F = mass m × acceleration a
$\text{efficiency}=\frac{\text{Actual Mechanical Advantage}}{\text{Ideal Mechanical Advantage}}$