psd2 024 ☈ Name:

  1. __________ _____ What is your height in meters?
  2. __________ _____ What is your mass in kilograms?
  3. ______________ What is your Body Mass Index?
  4. ______________ If you Body Mass Index is greater than 25 you are "overmassive". Are you overmassive?
  5. The first graph shows data gathered by a student in laboratory one which studied the density of 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 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. __________ _____ What is the density ρ of the soap (include units!)?
    2. ______________ Will the soap float or sink?
    3. _______________ Is the soap SafeGuard or Ivory?
  6. A student measures a rectangular bar of soap with a length of 6 cm, a width of 3.8 cm, and a height of 1.5 cm. The soap has a mass of 48 grams.
    1. __________ _____ What is the volume of the soap?
    2. __________ _____ What is the density of the soap?
    3. _______________ Will the soap float or sink?
    4. _______________ Is the soap SafeGuard or Ivory?
  7. ____________________ A student measures the length of a piece of soap using a ruler. Is the measurement a primary or calculated measurement?
  8. __________ _____ A bar of soap has a density of 1.6 g/cm³. If the volume of the soap is 100 cm³, what is the mass of the soap?
  9. The graph shows the time versus distance data gathered for four different ball speeds in laboratory 02.
    Rolling balls background rectangle major grid lines axes x-axis and y-axis linear regression line linear regression line linear regression line linear regression line data points as circles data points as rectangles data points as diamonds data points as triangles text layers Rolling balls Time (s) Distance (m) y-axis labels 0 5 10 15 20 25 30 35 40 45 50 x-axis labels 0.0 1.0 2.0 3.0 4.0 5.0 A B C D
    1. __________ _____ Determine the velocity ѵ of ball A.
    2. __________ _____ Determine the velocity ѵ of ball B.
    3. __________ _____ Determine the velocity ѵ of ball C.
    4. __________ _____ Determine the velocity ѵ of ball D.
  10. __________ _____ Calculate the velocity ѵ of a ball that rolls 25 meters in 12.5 seconds.
  11. __________ _____ Calculate the distance a ball with a velocity ѵ of 8 m/s will roll in 9 seconds.
  12. __________ _____ Calculate the time for a ball with a velocity ѵ of 8 m/s to roll 32 meters.
  13. As seen in the image, three vials with the same volume have equal amounts of a green liquid. Based on what you learned from the soap and the density laboratory, how would you explain that two are floating while one has sunk to the bottom?

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