TEACHING AND LEARNING MODULES FOR PHYSICS

TEACHING AND LEARNING MODULES FOR PHYSICS

Form4

Semester1

Learning AreaForces and Motion

Learning ObjectivesAnalyzing Momentum

Duration80 minutes

Prerequisite1. The relationship between inertia and mass.

2. The size of the acceleration depends on the size of the force and the mass of the body.

3. The effects produced by inertia.

Material ResourcesTrolleys, ticker-timer, ticker tape, power supply and balloon

MethodConstructivism and experimentation.

Noble ValuesRealising that science in a means to understand nature.

Learning OutcomesTeachers ActivitiesStudent activitiesQuestions and expected answer/NotesVocabulary

Define the momentum of an object.Define momentum (p) as the product of mass (m) and velocity (v) i.e. p = mv

State the principle of conservation of momentum.

Solve problems involving momentumDescribe applications of conservation of momentum

ENGAGEMENT1. Story telling to get the idea of momentum. Teacher give an illustration

about momentum by the lorry and car that move with same velocity.

2. Determine the situation.

EXPLANATION

3. Momentum as the product of mass and velocity; momentum = mass x velocity. Mass is measured in kilograms and velocity in meter per second. EXPLORATION

4. What is the momentum: M1=5 kg M2=5kg

EXPLORATION

5. Let the student play with the newtons cradle. EXPLAINATION1. Teacher explains that the total momentum is the same before and after collision. Momentum is conserved in an elastic collision, inelastic collision and explosion; define the principle of conservation of momentum.

2. Teacher explain and give note about 3 types of collision :

1.elastic collition

2.inelastic collition

3.explosion

EVALUATIONTeacher give the question by using powerpoint

Teacher divide student into few groupTeacher give a briefing to the students about the rocket balloon

Teacher ask student about application involving momentum.

Students make observation and discuss in group.

Students give the answerStudents answer teachers question.

Students solve the problem in groupStudents paly with newton cradleStudents take the notes.Solve the questionStudent sit among the group membersStudent discuss among them about the game.Student play the game.Which vehicle did you scared?Lorry..Why?

Lorry is big

What is the unit used for momentum?

Ans: kg ms-1Ans : momentum depends onmass and velocityWhat is the unic thing that you observe?

What happen if you release only 1 ball?

What happen if you release only 2 ball?

Refer to powerpoint slide

Momentum momentum

Collision crash into each other

(perlanggaran)Explosion burst with great force (letupan)Conservation of linear momentum keabadian momentum.

v2 = 5ms-1

v1 =

2 ms-1

M1=5kg

V1 = 5ms-1

v2 = 5ms-1

M2 = 10 kg

PAGE 2