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Sains Tahun 4 | Perubahan Bentuk tenaga

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

Simbol ini dalam tajuk tenaga membawa maksud________.

This symbol means __________ in energy topic.

a)

dimakan oleh

eaten by

b)

berubah kepada

change to

c)

dari kiri ke kanan

from left to right

d)

masuk ke dalam

step into

2.

Antara alat berikut yang manakah melibatkan perubahan bentuk tenaga suria kepada tenaga elektrik?

Which of the following devices involves the transformation of solar energy into electrical energy?

a)

Seterika

Iron

b)

Telefon Bimbit

Handphone

c)

Panel Suria

Solar panel

d)

Lampu Picit

Torch light

3.

Apakah perubahan bentuk tenaga yang berlaku apabila alat di atas digunakan?

What are the transformations form of energy occur when the above tools are used?

a)

tenaga elektrik --> tenaga haba


electrical energy --> heat energy

b)

tenaga suria --> tenaga haba + tenaga cahaya


solar energy --> heat energy + light energy

c)

tenaga elektrik --> tenaga kinetik + tenaga haba


electrical energy --> kinetic energy + heat energy

d)

tenaga kimia --> tenaga elektrik + tenaga haba + tenaga cahaya


chemical energy --> electrical energy+ heat energy + light energy

4.

Apabila telefon bimbit dihidupkan , perubahan tenaga yang terlibat ialah_______________.

When the cell phone is turned on, the transformation of energy involved is _________________.

a)

tenaga bunyi --> tenaga kinetik --> tenaga suria


sound energy --> kinetic energy --> solar energy

b)

tenaga keupayaan --> tenaga suria --> tenaga haba


potential energy --> solar energy --> heat energy

c)

tenaga keupayaan --> tenaga kinetik --> tenaga bunyi


potential energy--> kinetic energy --> sound energy

d)

tenaga kimia --> tenaga elektrik--> tenaga cahaya + tenaga bunyi


chemical energy -->electrical energy--> light energy + sound energy

5.

Apabila lilin yang mengandungi parafin dibakar , perubahan tenaga yang terlibat ialah_______________.

When a candle containing paraffin is burned, the transformation of energy involved is _________________.

a)

tenaga bunyi --> tenaga kinetik --> tenaga suria


sound energy --> kinetic energy --> solar energy

b)

tenaga kimia --> tenaga cahaya + tenaga haba


chemical energy --> light energy + heat energy

c)

tenaga keupayaan --> tenaga kinetik --> tenaga bunyi


potential energy--> kinetic energy --> sound energy

d)

tenaga kimia --> tenaga elektrik--> tenaga cahaya + tenaga bunyi


chemical energy--> electrical energy--> light energy + sound energy

6.

Apabila kipas dihidupkan , perubahan tenaga yang terlibat ialah_______________.

When the fan is turned on, the transformation of energy involved is _________________.

a)

tenaga bunyi --> tenaga kinetik --> tenaga suria


sound energy -->kinetic energy --> solar energy

b)

tenaga kimia --> tenaga cahaya + tenaga haba


chemical energy--> light energy +heat energy

c)

tenaga elektrik --> tenaga kinetik + tenaga bunyi


electrical energy -->kinetic energy + sound energy

d)

tenaga kimia --> tenaga elektrik--> tenaga cahaya + tenaga bunyi


chemical energy--> electrical energy--> light energy + sound energy

7.

Hani mengayuh basikal , perubahan tenaga yang terlibat ialah_______________.

Hani riding the bike, the transformation of energy involved is _________________.

a)

tenaga bunyi --> tenaga kinetik --> tenaga suria


sound energy --> kinetic energy --> solar energy

b)

tenaga kimia --> tenaga cahaya + tenaga haba


chemical energy--> light energy + heat energy

c)

tenaga kimia --> tenaga kinetik


chemical energy--> kinetic energy

8.

Fikirkan satu situasi dimana bentuk tenaga berubah daripada tenaga keupayaan kepada tenaga kinetik

Think of a situation where the form of energy transform from potential energy to kinetic energy

a)

Budak lelaki memakan sate

The boy ate satay

b)

Budak membuka kipas

The boy switched on the fan

c)

Budak bermain basikal

The boy playing a bicycle

d)

Budak menuruni gelongsor

The boy slide down

9.

Peralatan manakah yang tidak memerlukan perubahan bentuk tenaga untuk berfungsi?

Which appliances does not require transformation of energy to function?

a)

Pengering rambut

Hair dryer

b)

Lampu meja

Table lamp

c)

Seterika

Iron

d)

Bikar

Beaker

10.

Rajah menunjukkan sebiji durian gugur ke tanah.

Apakah perubahan tenaga yang terlibat?

The diagram shows a durian falling to the ground.

What transformation of energy are involved?

a)

Tenaga keupayaan--> Tenaga kinetik


Potential energy --> Kinetic energy

b)

Tenaga kinetik --> Tenaga bunyi


Kinetic energy --> Sound energy

c)

Tenaga kimia--> Tenaga kinetik--> Tenaga bunyi


Chemical energy --> Kinetic energy --> Sound energy

d)

Tenaga keupayaan--> Tenaga kinetik--> Tenaga bunyi


Potential energy --> Kinetic energy --> Sound energy

11.

Antara peralatan berikut, yang manakah mengalami perubahan tenaga elektrik kepada tenaga kinetik?

Which electrical appliances undergoes a transformation of electrical energy to kinetic energy?

a)
b)
c)
d)
12.

Antara yang berikut, yang manakah menunjukkan perubahan tenaga bagi alat itu?

Which of the following shows the transformation of energy of the devices?

a)

Tenaga elektrik --> tenaga cahaya


Electrical energy--> light energy

b)

Tenaga elektrik--> tenaga kinetik


Electrical energy --> kinetic energy

c)

Tenaga cahaya --> tenaga bunyi


Light energy --> sound energy

d)

Tenaga elektrik --> tenaga bunyi + tenaga cahaya


Electrical energy --> sound energy + light energy

13.

Apakah perubahan tenaga yang berlaku apabila lampu suluh dinyalakan?

What is the transformation of energy that occurs when the flashlight is turned on?

a)

Tenaga kimia -->Tenaga elektrik --> tenaga haba + tenaga cahaya


Chemical energy--> electrical energy--> heat energy + light energy

b)

Tenaga haba --> tenaga cahaya --> tenaga bunyi


Heat energy --> light energy --> sound energy

c)

Tenaga elektrik --> tenaga bunyi --> tenaga cahaya


Electrical energy--> sound energy --> light energy

d)

Tenaga kimia --> tenaga cahaya


Chemical energy--> light energy

14.

Tenaga elektrik \rightarrow   Tenaga cahaya + Tenaga bunyi
Electrical energy \rightarrow   Light energy + Sound energy

Antara peralatan berikut, yang manakah mengalami perubahan tenaga yang sama apabila digunakan? 

Which of the following devices experiences the same transformation of energy when used?

a)

kalkulator

calculator

b)

televisyen

television

c)

pembakar roti

toaster

d)

radio

15.

Apakah perubahan tenaga yang berlaku apabila alat elektrik di atas dihidupkan?

What is the transformation of energy that occurs when the above electrical appliance is turned on?

a)

Tenaga haba --> tenaga bunyi


Heat energy--> sound energy

b)

Tenaga bunyi --> tenaga haba


Sound energy --> heat energy

c)

Tenaga elektrik --> tenaga haba


Electrical energy --> heat energy

d)

Tenaga bunyi --> tenaga cahaya


Sound energy--> light energy