pse3 034 ☈ Name:

slope= ( y2 − y1 ) ( x2 − x1 )
ѵ= Δd Δt
distance d = velocity ѵ × time t
a = Δѵ Δt = ( v2 − v1 ) ( t2 − t1 )
ѵ = at
ѵ = gt
d = ½at²
d = ½gt²
where g is the acceleration of gravity, g = 979 cm/s²

  1. The first graph shows data gathered by a student in SC 130 physical science. 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 4 8 12 16 20 24 28 32 36 40 x-axis labels 0 5 10 15 20 25 30 35 40 45 50
    1. __________ _____ Calculate the density ρ of the soap (include units!).
    2. ______________ Will the soap float or sink?
    3. ______________ Toughie: Based on the density and your experience in the laboratory, what brand of soap is this?
  2. __________ _____ A student measures a bar of soap with a length of 7.9 cm, a width of 3.9 cm, and a height of 1.7 cm. What is the volume of the soap?
  3. __________ _____ A student measures a bar of soap with a length of 7.9 cm, a width of 3.9 cm, and a height of 1.7 cm. The soap has a mass of 58.9 grams. What is the density of the soap?
  4. ___________ _____ A bar of soap is found to have a density of 1.3 g/cm³. If the volume of the soap is 50 cm³, what is the mass of the soap?
  5. ___________ _____ A lead cube is found to have a density of 11.4 g/cm³. If the mass of the cube is 365 grams, what is the volume of the cube?
  6. Dial basic density data For the data and chart shown calculate the following:
    1. __________ _____ What is the density ρ of the soap?
    2. __________ _____ What is the y-intercept for the soap?
    3. ______________ Will the soap float or sink?
  7. The graph shows the time versus distance data gathered for four different ball speeds in laboratory 02.
    Rolling ball background rectangle major grid lines axes x-axis and y-axis linear regression line data points as rectangles A data points as diamonds C data points as circles B data points as triangles D text layers Rolling ball time versus distance plots for four rolls Time (s) Distance (cm) y-axis labels 0 200 400 600 800 1000 1200 1400 1600 1800 2000 x-axis labels 0 1 2 3 4 5 6 7 8 9 10
    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.
  8. __________ _____ Calculate the velocity ѵ of a ball that rolls 2424 centimeters in six seconds.
  9. __________ _____ Calculate the distance a ball with a velocity ѵ of 777 cm/s will roll in six seconds.
  10. __________ _____ Calculate the time for a ball with a velocity ѵ of 243 cm/s to roll 729 centimeters.
  11. For the following RipStik velocity data and chart:
    RipStik velocity, time versus distance
    1. __________ _____ Determine the velocity ѵ of the RipStik.
    2. __________ _____ If the RipStik continued at that velocity for 60 seconds, how many centimeters would the RipStik travel?
    3. __________ _____ If the RipStik continued at that velocity for 1819 centimeters, how many seconds would the RipsStik travel?
  12. The graph shows RipStik deceleration data. A RipStik was ridden 900 centimeters up a gentle slope, then the RipStik was ridden back down the same slope. The time from the start at the bottom of the slope to the return to the bottom of the slope was 12 seconds.
    Grid 12 x 10 on the thirties background rectangle major grid lines axes Line data points as circles text layers RipStick Deceleration Run time (seconds) distance (centimeters) y-axis labels 0 100 200 300 400 500 600 700 800 900 1000 x-axis labels 0 1 2 3 4 5 6 7 8 9 10 11 12 Image block RipStik Rider
    1. __________ _____ Calculate the velocity between 0 and 2 seconds.
    2. __________ _____ Calculate the velocity between 2 and 4 seconds.
    3. __________ _____ Determine the velocity at exactly 6 seconds.
    4. __________ _____ Calculate the deceleration between two and four seconds.
    5. ___________________ Which direction is the acceleration?
  13. __________ _____ A superball falls for three seconds. How far does the superball fall in centimeters?
  14. __________ _____ A superball falls for three seconds. What is the speed of the superball?
  15. __________ _____ A superball falls for 700 centimeters from the height of the new windows in the gym. How long does the superball fall in seconds?
  16. __________ _____ A superball falls for 700 centimeters from the height of the new windows in the gym. What is the speed of the superball?