psc2 074 ☈ Name:

  1. _________ _____The first graph shows data gathered in the soap density laboratory. Calculate the density ρ of the soap.
    Soap density background rectangle major grid lines axes x-axis and y-axis linear regression line data points as circles text layers Soap density volume (cm3) mass (g) y-axis labels 0 11 22 33 44 55 66 77 88 99 110 x-axis labels 0 10 20 30 40 50 60 70 80 90 100
  2. ______________ Based on the data on the graph, will the soap float or sink?

    density vials
  3. __________ _____ The three identical vials in the image each have a volume of 14.0 cm³. The two that are floating are each 13.3 grams. Calculate the density of one of the floating vials. blogger icon
  4. __________ _____ Given the above data, calculate the minimum (smallest) possible mass in whole grams for the one vial that sank.
  5. Rolling ball background rectangle major grid lines axes x-axis and y-axis linear regression line data points as rectangles E data points as diamonds G data points as circles F data points as triangles H text layers Rolling marbles Time (s) Distance (cm) y-axis labels 0 20 40 60 80 100 120 140 160 180 200 x-axis labels 0.0 1.0 2.0 3.0 4.0 5.0 The graph depicts the time versus distance data for four different marbles. One marble was not moving, one marble was slowing down, one marble was speeding up, and one was moving at a constant speed.

    __________ _____ Calculate the velocity of marble H.
  6. __________ _____ Calculate the velocity of marble F.
  7. __________ _____ Calculate the velocity of marble E between zero and one second.
  8. __________ _____ Calculate the velocity of marble G between 3.5 and 5.0 seconds.
  9. __________ _____ Calculate the acceleration of marble F.
  10. __________ _____ The velocity of marble E between 1.0 and 2.0 seconds is 80 cm/s. The velocity of marble E between 2.0 and 2.5 seconds is 120 cm/s. For the 1.5 seconds during which this change in velocity occurred, calculate the acceleration.
  11. ____________ Calculate the distance a marble with a velocity of 50 cm/s will roll in 8 seconds.
  12. Marbles on ruler track ___________ If two marbles are rolled into a line of five marbles, how many marbles will roll out from the end of the line?
  13. __________ ______ Given d = ½gt², where g = 980 cm/s², what is the duration in seconds for a marble to fall from a height of 1960 cm?
  14. Laboratory 032: Finish filling in the table below by calculating the distance d for the ball to fall from the formula:
    d = ½gt²
    Use 980 cm/s for the acceleration of gravity g. When done calculating the distances, plot the data in the table on the graph.

    Rolling ball

    Data

    time t (s)distance d (cm)
    0.0
    0.2
    0.4
    0.6
    0.8
    1.0
    background rectangle major grid lines axes x-axis and y-axis text layers Falling super ball Time (s) Distance (cm) y-axis labels 0 50 100 150 200 250 300 350 400 450 500 x-axis labels 0.0 0.2 0.4 0.6 0.8 1.0
  15. __________ If a block and tackle has three load lines, what is the estimated Mechanical Advantage?
  16. __________ _____ If the crane with three load lineslifts a steel beam with a mass of 900 kg, how much force in kilogram-force (kgf) will the lift motor have to produce?
  17. _________°C What is the temperature of a mix of melting ice and water in Celsius?
  18. _________°C What is the temperature of melting solid coconut oil in Celsius?
  19. _________°C What is the typical daily room temperature in Pohnpei in Celsius?
  20. _________°C What is the temperature of the healthy living human body in Celsius?
  21. _________°C What is the temperature of a boiling water in Celsius?
  22. __________________ The chart depicts the change in temperature for the cup with water at room temperature in laboratory 062 heat conduction. Which material below conducts the most heat energy?
    Horizontal bar chart BrassLeadZinc CopperAluminum 0510 ΔTemperature °C of the room temperature water
  23. ΔT = ____________________ °C Based on the chart above, what is the change in temperature ΔT for the metal which conducted the most heat energy?
  24. ______________ When walking due North, which number would change on the GPS unit, the N 06° 54.540' or the E 158° 09.650' number?
  25. _________ _____ A student walked north on a line of longitude starting at N 6° 54.540' and ending at N 6° 54.580'. Calculate the difference in minutes.
  26. _________ _____ While walking North from N 6° 54.540' to N 6° 54.580' a student measured a distance of 80 meters. Calculate the number of meters per minute.
  27. _________ _____ The classroom is at E 158° 09.651'. Binky was at E 158° 09.451'. Use a value of 1840 meters per minute to calculate the distance from the classroom to Binky.
  28. The tundra is cold, but not too cold for conifers (pine trees). There is another reason conifers do not grow in the tundra, what is that reason?

slope m= (y2−y1) (x2−x1)
Volume V = length l × width w × height h
mass m = density ρ × Volume V
ρ= m V
distance d = velocity ѵ × time t
ѵ= Δd Δt
a= Δѵ Δt
ѵ = at
d = ½at²
d = ½gt²
where g is the acceleration of gravity.
g = 980 cm/s² (cgs)
g = 9.8 m/s² (mks)
Gravitational Potential Energy = mgh
Kinetic Eenergy = ½mѵ²
momentum = mѵ