Page 229 - SCIENCE DLP T6 SK (SEMAKAN 2017)

1. Technology is an application of scientific knowledge to overcome
human limitations.

2. Humans invent various equipment to overcome their limitations.
Among the inventions are as follows:

Human limitation Invented equipment
• unable to see tiny objects • microscope

• unable to see faraway objects • telescope
• microphone and
• unable to speak with a loud voice
loudspeaker
loudspeaker
• unable to listen to sounds with low frequency • stethoscope

• unable to speak over a long distance • telephone and mobile
phone
phone
• unable to move quickly to a far-off destination • land, water, and
air transports
air transport
3. The development of technology in various fields such as agriculture,
medicine, transport, communication, and construction enables humans
to live comfortably.

4. The advantages and disadvantages of technology are as follows:

Advantage of technology Disdvantage of technology

The use of drones to spray pesticides The battery life of drones is limited and
on crops can help save time and can cause pollution when the batteries
human resources. are discarded.
8.2.6 The production of medicines can help The abuse of medicines can
8.2.7 treat patients and improve quality cause addiction.
of health.
Forests can be developed Flora and fauna will be destroyed
to build houses. due to deforestation for the purpose
of building infrastructure.
Information can be disseminated The intrusion of personal data can
quickly and without limits. This can easily happen. The data can be
save time. exploited by irresponsible parties.

The increase in the number of The emission of harmful gases
vehicles can facilitate movement from contributes to air pollution.
one place to another.

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