Physics Lab Exercise Pressure (Page 2 of 3) in pdf

Physics Lab Exercise Pressure Page 2

3. Using the ratio from calculation #2, calculate the square inches of the cutouts for each section

PART ONE: ONE FOOT

PART TWO: TWO FEET

PART THREE: TWO HANDS

_________ in 2

Area

STEP TWO: Calculation of the pressure

Remember that P = F÷A and the force would be your weight (in lbs). Divide the pounds (from the Data Section) by

the square inches (from Step One). The unit for pressure in this lab is lbs/in

. Write your answers below.

PART ONE: ONE FOOT

PART TWO: TWO FEET

PART THREE: TWO HANDS

Pressure _________ lbs/in 2

STEP THREE: Metric Conversions

1. Convert your weight (in lbs) to Newton's. Multiply your weight by 4.54. Write your answer on the line

provided.

__________ N

2. Calculate the area of the full sheet of graph paper in square meters.

3. Find the ratio of square meters per gram for the full sheet of graph paper.

4. Using the ratio from calculation #3, calculate the square meters of the cutouts for each section

PART ONE: ONE FOOT

PART TWO: TWO FEET

PART THREE: TWO HANDS

_________ m 2

Area

5. Calculate the pressure for each part of the lab (in Pascal). Divide your weight from #1 by the areas from #4.

(P= F÷A)

PART ONE: ONE FOOT

PART TWO: TWO FEET

PART THREE: TWO HANDS

Pressure _________ Pa

CONCLUSION: Answer each of the following in complete sentences. Staple your graph papers to the back of this

lab upon completion.

1. What was the force in both parts of this lab? Was it constant, did it increase or decrease?

Physics Lab Exercise Pressure Page 2