Calculating Work and Power by Climbing Stairs
Work and Power Lab
Calculating Work and Power by Lifting
Objective: To calculate the work you do, and power you generate, from everyday tasks.
Materials: stop watch, weight of object, meter stick/metric ruler, calculator, measured vertical distance.
Part I
1. Measure the total height of the table in cm and record it in m in table 1.
Table 1: Table Measurements
| Total height of table (m) = total height of table (cm) divided by 100 | |
Part II
2. Next decide what object you’re going to lift that’s on your desk. Write the mass of the object in the blank space below.
Mass of object in kilograms: ____________________________________
3. Use the GUESS method to calculate weight of object in Newtons.
(Hint: w=mg)
4. Have one person lift the object slowly and steadily from the bottom of the table to top. Have your partner record the time it takes in seconds in Table 2 under the column labeled “slowly”. Do three trials and calculate the average time.
5. Now have your partner lift the same object rapidly. Record the time it takes in seconds in Table 2 under the column labeled “rapidly”. Do three trials and calculate the average time.
Table 2: Time Trials
|Lifting Object |Slowly |Rapidly |
|Trials |1 |2 |3 |Avg. |1 |2 |3 |Avg. |
|Time (seconds) | | | | | | | | |
Part III
6. Calculate the work done using the GUESS method on the object by lifting it slowly and rapidly. Record your claim in Table 3 below. (Hint: W=Fd)
Table 3: Work Done
|Lifting Object |Slowly |Rapidly |
|Work done (Joules) | | |
7. Was the work done by lifting the object slowly the same as or different from lifting the object rapidly? Explain your claim with evidence and reasoning.
Part IV
8. Calculate the power output using the GUESS method of lifting the object slowly and rapidly in watts. Record your claim in table 4. (Hint: P=W/t)
Table 4: Power Done
|Lifting Object |Slowly |Rapidly |
|Power done (Watts) | | |
9. Was power done by lifting the object slowly the same as or different from lifting the object rapidly? Explain your claim with evidence and reasoning.
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- how to calculate safety distances stability technology inc
- calculating work and power by climbing stairs
- calculation example
- activity 1 2 5 mechanical system efficiency atv
- activity 3 2 1 elements of power
- power and sample size calculation purdue university
- exponents square roots and radicals
- technology assessment calculator acqnotes
- physics 11 work power energy worksheet
Related searches
- work comp laws by state
- calculating theoretical and percent yield
- calculating principal and interest mortgage
- calculating principal and interest in excel
- calculating mean and standard deviation in excel
- calculating variance and standard deviation
- calculating npv and irr
- work energy and power formulas
- work and power equations
- work and power formulas
- calculating interest and principal payments
- calculating wavelength and frequency worksheet