Cycle I Physics

John Dewey High School

Mr. Klimetz

Measure the following with a meter stick to the nearest 0.1 centimeters and record on the

lines provided. Convert your values to meters and record on the lines provided.

Meter stick

Hooked Masses: 200g, 500g, and 1000g

Aluminum cylinder

Rectangular cut polystyrene sponge

Stopwatch

Physical Setting: Physics *Reference Tables *Triple beam balance

Protractor Spring Scale

Length of the Classroom Door ____________________ cm ________________________ m

Width of the Classroom Door _____________________ cm ________________________ m

Thickness of the Classroom Door _________________ cm ________________________ m

Length of the Front Blackboard ___________________ cm ________________________ m

Width of the Front Blackboard ____________________ cm ________________________ m

Length of the Meter Stick _______________________ cm ________________________ m

Width of the Meter Stick ________________________ cm ________________________ m

Thickness of the Meter Stick _____________________ cm ________________________ m

Length of Polystyrene Sponge ____________________ cm ________________________ m

Width of Polystyrene Sponge _____________________ cm ________________________ m

Thickness of Polystyrene Sponge _________________ cm ________________________ m

Radius of Aluminum Cylinder ______________________ cm ________________________ m

Height of Aluminum Cylinder ______________________ cm ________________________ m

Measure the mass of the following with a triple beam balance to the nearest 0.1 grams and record on the lines provided. Convert your values to kilograms and record on the lines provided.

Mass of Aluminum Cylinder ________________________ g ________________________ kg

Mass of Meter Stick _____________________________ g ________________________ kg

Mass of Polystyrene Sponge ______________________ g ________________________ kg

Mass of Protractor ______________________________ g ________________________ kg

Mass of Stopwatch ______________________________ g ________________________ kg

Mass of Reference Tables _________________________ g ________________________ kg

Calculate the surface area of the following to the nearest cmexp2 and record on the lines provided. Convert your values to mexp2 and record on the lines provided in significant figures.

Classroom Door ____________________________ cmexp2 ______________________ mexp2

Front Blackboard __________________________ cmexp2 ______________________ mexp2

Measure the time required for a 40-cm-long pendulum to complete ten cycles with the stopwatch provided and record to the nearest 0.01 second on the line provided. Repeat four additional times, record, and then average all trials. Calculate the time of a single cycle and record where indicated.

First Set of Ten Cycles ____________________________ s

Second Set of Ten Cycles __________________________ s

Third Set of Ten Cycles ____________________________ s

Fourth Set of Ten Cycles ___________________________ s

Fifth Set of Ten Cycles ____________________________ s

Average Time of __All Five__ Ten-Cycle Sets _____________ s

Average Time of __One__ Cycle _________________________ s

Measure angles A and B which are posted on the front blackboard with the protractors provided and record to the nearest degree:

Angle A _______________________________ deg

Angle B _______________________________ deg

Calculate/measure the volume of the following objects to the nearest cmexp3 and record on the lines provided. Convert your values to mexp3 and record on the lines provided in

significant figures.

Classroom Door ___________________________ cmexp3 _______________________ mexp3

Meter Stick ______________________________ cmexp3 _______________________ mexp3

Aluminum Cylinder _________________________ cmexp3 _______________________ mexp3

Answer the following questions, thoroughly, thoughtfully, comprehensively, and intelligibly. Written responses must be in the form of complete, grammatically correct sentences. Mathematical responses must show all work, including equations and substitutions.

1.Briefly explain the meaning of the word *precision* as employed in the context of the Physics laboratory. Upon what is the precision of a measurement based? Relate the precision of obtained measurements possible with each of your tools of measurement, that is, the meter stick, triple beam balance, stopwatch, and protractor, respectively.

2.Briefly explain the meaning of the word *accuracy* as employed in the context of the Physics laboratory. Summarize the principal differences between absolute error and percent error and the methods by which each is obtained.

3.The *density* of a body is the ratio of its mass to its volume. Based on your recorded data, calculate the density of your meter stick (in grams per cubic centimeter), being mindful to express your answer in the appropriate significant digits. Show all work.

4.Based on your data as well as your answer to question 3, calculate the *mass* of the front door (in kilograms), assuming that the meter stick and the door are each comprised of the same type of wood and therefore possess *equal* density. Consult your conversion sheet if necessary.

Lab Stand

Brass pendulum

Three-place screw clamp

50 cm thin nylon fishing line

Metric Ruler

Area of Rectangle = Length x Width

Area of Triangle = 1/2 x Base x Height

Surface Area of Rectangular Solid = 2(Length x Width) + 2(Width x Thickness) + 2(Length x Thickness)

Volume of Rectangular Solid = Length x Width x Thickness

Volume of Right Cylinder = p x Radiusexp2 x Height (p = 3.14)

Measure the respective weights of the 250 gram, 500 gram, and 1000 gram hooked masses

and record to the nearest 0.2 Newtons on the line provided.

200 grams = __________________________ Newtons (N)

500 grams = __________________________ Newtons (N)

1000 grams = _________________________ Newtons (N)

5.Based on your data as well as your measurement of the weights of the three individual hooked masses, write an algorithm (equation) which permits the direct conversion of the magnitude of a body's mass (__in kilograms__) to the magnitude of its weight (__in Newtons__). Think!

Centimeter Subdivision

Millimeter Subdivision