अदुह फिजिक्स Worksheet

Physics Worksheet
The first semester






By :



NUR KHOLILAH ,S.Pd



SENIOR HIGH SCHOOL 1 MANYAR
GRESIK 2009


CHAPTER 1

QUANTITIES AND UNITS

A. Standard of Competency
1. Apply the physics quantities concept and measurements

B. Basic Competence
1.1 Measure the physical quantities (mass,lengt,time)

I.1.1Physical quantities

A. Indicator

1. define the physical quantities and unit
2. compare the basic physical quantities and the derive physical quantities with it’s unit .
3. mention the names of instrument measure correctly .
4. mention the smallest scale of instrument measure .

B. Subject maters

- Basic Quantities are the physical quantities the units of which are predetermined
- Derived quantities are the physical quantities which the units of which are derived from basic quantities /units

- Basic Quantities and Units

Quantities Units Symbol
Length meter m
Mass kilogram Kg
Time second s
Electric currant ampere A
Temperature Kelvin K
Luminous Intensity Candela Ca
Amount of substance Mole mol

- Derived Quantities and Units

Quantities Units Symbol
Area Square meter m2
Volume Cubic meter m3
Density Kilogram /cubic meter Kg/m3
Velocity Meter/second m/s
Acceleration Meter/square second m/s2
The Instrument measure of physical quantities

Length mass Time
Ruler balance Writs watches
Vernier caliper Spring balance clocks
Micrometer screw Houss balance Stopwatch

The Smallest scale of instrument measure
Name of instrument Smallest scale
Ruler 1 mm
Vernier caliper 0,1 mm
Micrometer screw 0,01 mm
Spring Balance 1 gram
Balance 1 ons
Writs watches 1 minutes




tudent Work Sheet
QUANTITY AND UNITS

Standard competition : 1. apply the concept physical quantity and it’s measure .

Based competition : 1.1 measure the physical quantity (length, mass, and time)

Objectives of study : student can use instrument measure of length ,
mass , and time with several kind of instrument
measure .
activity
:
1. mention the names of instrument measure you know !
2. classify that instruments measure to this table appropriate with the quantity .



Names of instrument measure
No Quantity of length Quantity of mass Quantity of time
1.
2.
3.
4.
5.
6.
7.
3. mention the smallest scale of instrument measure

No Quantity Name of instrument Smallest scale
1 Length 1
2
3
4
2 Mass 1
2
3
3 Time 1
2




Evaluation

1. Mention the physical quantities and the smallest scale to completed this table .

Instrument The Physical Question measured Smallest scale
Ruler
Balance
Vernier caliper
Clocks
Spring balance
Micrometer screw
Stopwatch






I.1.2 Measurement


A. Indicator
a. To be able read scale of micrometer screw and vernier caliper
b. Can to report the result of measurement
c. Identification the significant numbers
d. To be able use the rule of significant

B. Subject maters
- The method to read scale of vernier caliper


Look at figure, please !
-1. Look at the Zero of vernier scale à The reading of the main scale that
coincides with the zero vernier
scale Is
between 2.4 and 2.5 cm
- 2 Look at the vernier scala that joint vertically with the main scale à from
figure is 0.062 cm

thus, the reading of the vernier caliper is 2.4 + 0.062 = 2.462

- The method to read scale of micrometer screw


Look the figure!
1. The reading of the main scale that coincides with the edge of the outer wrap is between 3.5 and 4.5
2. 2The outer wrap line which coincides exactly with the horizontal line of the main scale is the 6-th line

Thus, the reading of the micrometer screw is 3.5 mm + 0.06 mm = 3.56 mm




- THE METHOD OF REPORTING THE RESULT OF MEASUREMEN

- The report the result of single measurement as follow :
-
X = Xo  ∆ X
X = physical quantities measured
Xo = result of the single measurement
∆ X = measurement uncertainty
- To report the result of recurrent measurement as follow :
X =  ∆X
= The mean of Physical quantity value of X
=

∆X =
Significant Numbers

• Significant Numbers are all numbers that are gained from the result of measurement.
For Example :The Result of length measurement is :
4,5 cm ( Has 2 Significant Numbers )
2,16 mm ( Has 3 Significant Numbers )
41,25 ( Has 4 Significant Numbers )
• The Rules of significant numbers
1. All numbers other than zero are significant number.
Example: 3752.8 (has 5 significant numbers)
2. The zero number between two numbers other than zero is significant number.
Example: 5.002 Kg (has 4 significant numbers)
3. The zero number on the right of numbers other than zero is not a significant number, except if there is a sign like an underline.
Example: 8760 m (has 3 significant numbers)
4. The zero number on the left hand of numbers other than zero is not significant number.
Example: 0.82 A (has 2 significant numbers)
• The Rules to calculate Significant Numbers
1. The result of addition or subtraction of significant numbers can only have one estimation number .


Example:
+
2. The result of multiplication or division of significant numbers can only have significant numbers as many as the smallest significant number between the numbers multiplied.


Example:




Student Work Sheet
MEASURMENT
I. Purpose
a. to be able read scale of micrometer screw gauge and vernier
caliper
b. to be able use the rule of significant numbers
II. Instrument and materials
a. coin
b. vernier caliper
c. micrometer screw gauge
d. ruler
III. Activity step’s

1. measure the thickness of coin by using ruler
2. measure the thickness of coin by using vernier caliper
3. measure the thickness of coin by using micrometer screw gauge
4. measure the diameter of coin by using ruler
5. measure the diameter of coin by using verniert caliper

IV. Observation data

Table 1
No Measurement equipments The thickness of coin How to report the result of measurement Significant numbers
1
2
3 Ruler
Fernier caliper
Micrometer screw





Table II
No Measurement equipment Diameter of coin How to report the result of measurement Significant numbers
1
2 Fernier caliper
Micrometer screw gauge

V. Evaluation

1. from table 1 observe the significant number with the minimum significant number in measurement equipment
2. From three of measurement equipments according to you, which one is most rigorous?
3. The rigorous of measurement equipment prescribed by what?
4. from table 1 and 2 , calculate :
a. circumference circle (by using the rule of significant numbers)





b. the area of circle (by using the rule of significant numbers)





c. thickness + diameter (by using the rule of significant)









Home work
Subject : Physics Class : ……
Name : ……. Date :……

Answer Question correctly !

1. Determine the reading of the verniaer caliper in the figure below :

2. Determine the reading of the micrometer screw in the figure below :



10
0 1 2

5






3.

Measurement Instrument
Diameter of coin The thickness of coin
Ruler 2 cm 3 mm
Vernier caliper 2,1 cm 2,8 mm
Micrometer screw 2,16 cm 2,67 mm

From the table calculate : (by using the ruler of significant numbers)

A. Circumference circle
- …..

- ….

- …..


B. The area of circle
- …..

- ….


- ….


C.




1.1.3 MEASUREMENT UNCERTAINTY

A. Indicator
1. Identification the measurement uncertainty
2. Explain about absolute uncertainty
3. Determine relative uncertainty
4. Compare the solute uncertainty and relative uncertainty

B. Subject maters

Absolute uncertainty and relative uncertainty

- Data resulting from a single measurement is usually reported by :
X = Xo  ∆ X

Absolute uncertainty

Either in measurement : ∆ X is called absolute uncertainty
The value of ∆ X can be determined as follow :
∆ X = ½ Smallest scale

- Absolute uncertainty (∆X)  can be used to determine the precision of the measurement.
-
Relative uncertainty
- The value of relative uncertainty can be determined as follow :
Relative uncertainty =
- Relative uncertainty  can be used to determine the acucracy of the
Measurement




STUDENT WORK SHEET

MEASUREMENT UNCERTAINTY


I . Purpose : a. can discriminate absolute uncertainty and relative uncertainty
b. can calculate relative uncertainty
c. can identification accurate and accuracy measurement
II . Observation data :

Table 1
Complete!

No Instrument to measure Thick metal (mm) Method to report result measurement Sum of significant number Absolute uncertainty Relative uncertainty Note
1

2

3 Ruler

Fernier caliper

Micrometer screw 2

1,9

1,89 2  0,5

1,9  0,020

1,89  0,0100 1

2

3

Table 2






Complete!

No Instrument
Diameter metal (mm) Method to report result measurement Sum of significant number Absolute uncertainty Relative uncertainty Note
1

fernier caliper

23,3


23,3  0,020 3
2

Micrometer screw 23,25 23,25 ,0,01 4


CONCLUSION








C. Evaluation

1.


a. The raiding of the micro meter above can be reported as …
…….

b. Determine the relative uncertainty!







2.

a .The raiding of the vernier caliper above can be reported as ……….



b.Determine the relative un certainty !






3. From the result of measurement above ( 1 and 2 ),which one of measurement the more precision









C. Basic Competence
1.2. Making table and graph

Indicators
1. To make the table of basic experiments result
2. To observe the table from experiments result
3. To make the graphic of based the table.
4. To understand and explain the graphic.


Subject Maters
To make the table :
- attention quantity is measuremend,value,unit and variable.
To make the graphic :
- attention variable two is connet

No Y liter X (kg)

1 2 1 …….
2 4 2 …….
3 6 3 …….

From the table:
- You can draw the graphic X-Y follow:

Conclusions the graph is : Y Proportional to X

-You can draw The graphic X- Z bellow :


Conclusions the graph is : Y constant to X






Student Worksheet

“Making table and graph ”


I. Objective: to make table and graphs

II. Devices and Material
1. Measure glass
2. Glass
3. Water
4. Balance

III. Working Procedures
1. Measure the glass mass (mi =…….)
2. Measure the water volume with Measure glass (V=……) and put the water into the glass and than measure mass (mf =…..)
3. Determine the water mass with m= ( mf - mi )
4. Repeat the steps (2-3) above 3 times with the different water volume.
5. Make the table to represent the experiment result in( No,v,m,  )


6. From data as shown in table draw a m-v graph











7. From data as shown in table draw a -v graph





CONCLUSION














Evaluation
The Result of experiment bellow :

No (Y) (X)

1 3 0,5
2 6 1
3 9 1,5



The basid table :
a. Complet the colom of table
b. Draw the graphic Y-X











c. Explan the meaning of graph






d. Draw the graphic X-Z











e. Explan the meaning of graph