refraction experiment

7/29/2019 Refraction Experiment

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SEKOLAH MENENGAH SAINS SELANGOR

PEKA 3

NAME: .

CLASS : DATE :..

Experiment : To Study The Relationship Between The Angle Of Incidence and

The Angle of Refraction

Figure 1

Problem Statement

Figure 1 shows a spatula which is partially immersed in a glass filled with water.

It is found that the glass rod appears bent upward. By using a glass block, ray

box and other appropriate instrument describe an experiment.

Based on the observations in Figure 1

a. Make one suitable inferenceb. State appropriate hyphotesis for an investigation

c. With the use of a glass block and other appropriate apparatus, describe anexperimental framework to test your hypothesis . In your description, state clearly the

following:

(i) Aim of experiment

(ii) Variable involved in the experiment

(iii) List of apparatus and materials

(iv) Arrangement of the apparatus

(v) The procedure of the experiment which include the method ofcontrolling the manipulated variable and the method of measuring

the responding variable

(vi) Way you would tabulate the data

(vii) Way you would analyse the data

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PWE Report (Practical Work Evaluation)

C1

S1PI

1

(a) 1 Inference :

C1

S1PI

2

(b

)

1 Hypothesis :

C1

S1PI

3

(c) 1 Aim/ Purpose of experiment :

C1

S1PI

4

2 Manipulated variable :

Responding variable :

C1

S1PI

4

3 Constant variable :

C1

S2PI

1

4 List of apparatus/instruments :

C1

S2PI

5 Apparatus arrangement :

Suhaimi SMTP 2


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2

C1

S2PI

3

6 Method to control manipulated variables :

C1

S2PI

3

7 Method to control responding variables :

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C1

S2PI

3

8 Experiment repetition :

Construct 2: Conducting the experiment

C1

S2PI

4

9 Data tabulation : Tabulate data containing angle of incidence i , angle of

refraction r, sin i , sin r andr

i

sin

sin

Construct 3: Collecting and recording data

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Scientific Performance Indicator (PI)PI1: Setting up apparatus

PI2: Conducting experiment using the apparatus set up

PI3: Taking down readings

Scientific Performance Indicator (PI)PI1: Making tables

PI2: Recording all values for manipulative variables

PI3: Recording all values for responding variables

PI4: Recording secondary data


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Gradient og the graph:

10 Data analysis (Plot a graph of sin i versus sin r)

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Title : ___________________________________________________________________

Contruct 4 : Data analysis and making conclusions

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Scientific Performance

Indicator (PI)

PI1: Relating the topic of the graph and drawing

correct axis

PI2: Uniform scale

PI3: Best, smooth, straight line

PI4: Determining gradient and drawing the trianglePI5: Determining values from graph via

extrapolation or intrapolation

PI6: Making conclusions

PI7: Relating steps in order to get better accuracy

readings


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C4

PI6

Conclusion : (State relationship between variables and state whether your

hypothesis is accepted or rejected)

C4

PI7

Caution steps :

Construct 5: Scientific Behaviour and moral values

Items Performance Indicator

Suhaimi SMTP 7


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refraction experiment

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