Page 61 - text book form physics kssm 2020

Chapter 2 Force and Motion I

Effects of Inertia in Daily Life
Astronauts in a spaceship such as the International Space Station Inertial balance video
(ISS) are in a condition of zero gravity. Under the condition of
zero gravity, only the inertial balance can be used to measure
mass. Photograph 2.6 shows a special type of inertial balance used
by astronauts. The periods of oscillation of astronauts are used to
determine their body mass. http://bt.sasbadi.com/p4055

Inertial
balance

Oscillation
Oscillation

Photograph 2.6 An astronaut using an inertial balance

Inertia can have good and bad effects to our daily lives. Let us discuss situations that
involve inertia.

Activity 2.7 ISS ICS

Aim: To discuss situations in daily life that involve inertia

Instructions:
1. Carry out a Hot Seat activity.
2. Gather information on situations in daily life that involve inertia.
3. Discuss whether the situations have good or bad effects on human.
4. Suggest a method to reduce the bad effects of inertia.
5. Choose a group representative to answer questions from other groups.

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