Definition

1. Teaching Plan
Subject: Physics Form 4 (Danalis Distributors Sdn. Bhd.)
Learning Area: Forces and pressure
Learning Objective: 3.6 Understanding Bernoulli’s principle
Learning Outcome:
A student is able to:
• State Bernoulli’s principle
• Carry out an experiment to show the effect of Bernoulli’s principle using a Venturi tube
• Explain that a resultant force exists due to a difference in fluid pressure
• Describe applications of Bernoulli’s principle
• Solve problems involving Bernoulli’s principle
Prior Knowledge and Skills
Students have knowledge of the resultant force and pressure.

2. Scientific Skills
Observing, inferring and predicting.
Thinking Skills
Attributing, comparing and contrasting, grouping and classifying.
Moral and Scientific Value
• Having an interest and curiosity towards the environment.
• Having critical and analytical thinking.
• Being flexible and open-minded.
Preparation
1. Instruct students to read text book from page 100 to 103 and practical book page 55.
2. Instruct students to prepare a plan of the practical report.
3. Review the teaching courseware and/other related teaching aids with animation or video clips.
4. Prepare power point presentation to be used in classroom teaching.
5. Prepare activity sheet for the lesson.

3. LESSON x: 3.6 Understanding Bernoulli’s principle
Pedagogy: Observation and classroom discussion with LCD presentation
Time: 2 periods
Development of lesson
Learning
Activities
Content T&L Strategies / Methods
Introduction
(30 – 40 minutes)
Carry out activities
to gain an idea that
fluid velocity affects
fluid pressure.
Writing
observations on
work sheet.
Refer to text book page 100.
(i) When a fluid moves, there is a change in its
fluid pressure.
(ii) The higher the fluid velocity, the lower the
fluid pressure.
(Work sheet is given out to students.)
• Carry out Activity 3.6A, 3.6B, 3.6C text book page
101. Teachers are advised to split the students in
groups to do the 3 activities. The 3 activities are
placed in 3 separate stations to encourage as many
students as possible to participate actively in them.
The groups rotate among stations.
• Students fill in answers in their worksheet as they do
the activities.
Scientific Skills : Observing, inferring, predicting
Development 1
(10 – 15 minutes)
Referring to text
book, discussion.
Bernoulli’s principle states that the pressure of a
moving fluid decreases as the speed of the fluid
increases.
• Teacher states Bernoulli’s principle. (Text book page
100)
• Teacher demonstrates Bernoulli’s principle using a
Venturi tube. (Text book page 102)

4. Development 2
(30 – 35 minutes)
Practical session.
Write down the
observations.
• Students carry out experiment 3.5 (practical book
page 55).
• Students write down their observations.
Scientific Skills : Observing, inferring and predicting.
Development 3
(10 – 15 minutes)
Refer to text book,
discuss applications
of Bernoulli’s
principle.
Answer questions in
work sheet.
The airplane wing (an aerofoil) is shaped in such
a way that the air flowing past it creates a lifting
force on it. The lift is strong enough to balance
out the gravitational pull on the airplane.
• Students are requested to refer to text book page
103, Physics in Action to discuss applications.
• View computer simulations to observe air flow over
an aerofoil to gain an idea on lifting force
• Guide students to go through the questions in the
work sheet.
Scientific Skills : Connecting and predicting.
Moral and Scientific Value:
• Having critical and analytical thinking.
• Being flexible and open-minded.
Closure
(5 to 10 minutes)
Summarising the
lesson.
Problem solving
(homework)
(i) Summary from work sheet.
(Go over the answers work sheet.)
• Guide students to summarise the lesson by referring
to their work sheet.
• Give homework to students – 3.6 Questions (text
book page 104)
Moral and Scientific Value:
• Having an interest and curiosity towards the
environment.
• Cooperation