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Form : 4 Perdana

Subject : Physics

Topic : Forces and Pressure

Learning Objectives : Understanding Bernoullis Principle

Learning Outcomes : At the end of this lesson students will able to;

1) State Bernoullis principle2) Explain that a resultant force exists due to a difference in fluid

pressure3) Describe applications of Bernoullis principle

Educational Emphasis : Generating ideas, relating, sharing the information.

Instructional Aids : Marker, whiteboard , handouts, power point presentation, LCD projector,

and computer.

Previous Knowledge : Students have already learned about the definition of pressure, pressure in

liquid and air pressure.

References : i) Chai T.Y, Shima W.F, Seng Y.K, Ragavan R., Roslina.(2005).

Physics Form 4. Ministry of Education Malaysia.

ii) Teaching Coursware. Ministry of Education Malaysia.

iii) Bueche F.J, Hecht E. ( 2006). College Physics. Mc Graw Hill

Procedures:

Stage Learning and teaching activities Student reaction

Set Induction Teacher recap previous lesson and ask

questions.

Teacher show video about the situation of an

airoplane lift off.

Teacher ask question about how the big and

heavy machine can fly.

Students respond to teachers

questions

Lesson Development Teacher ask a central guiding questions:

How does the pressure in moving fluid relate

to the speed of the fluid?

(How does the speed of moving fluid affect

the pressure in the fluid?)

Teacher ask how is the movement of the tin

cans/ paper strip?

Form 2 groups

First group:

Students respond to teachers

questions

Students involve in activities.

Date : 1 August 2011

Time : 9.15a.m 10.25 a.m

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Show a bottle which has a strip of tissue in

the bottles mouth. Ask student to blow

hardly onto the bottles mouth.

Second group:

Teacher show 2 tin cans and ask student to

predict which way the tin cans will move if

they blow constantly between them.

Ask students to predict, observe and explain.

Debriefing

Teacher ask student to conclude about the

relationship between the speed of fluid and

its pressure, and the existence of resultant

force.

Teacher shows examples of application of

Bernoullis Principle

Teacher explain how an aeroplane can flywith an illustration.

Shows video of the magic of aerofoil.

Students respon to the

teachers question

Students give attentions to theteachers explanation.

Students give attentions to the

video.

Closure Teacher asks randomly the principle of

Bernoulli.

Students give respon to the

teachers question.

Follow up activities

1. Teacher asks students to read assignment on heat for the next lesson.2. Teacher asks students to do the exercises given.

Self-evaluation:

Supervisors comments: