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Complex machines

Complex machines are tools or objects that consist of more than one simple machine.



Bicycle


lever

wheel and axle

gear

Scissors

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Unit 7 Worksheet A

A. Classify the objects below according to the types of simple machine.



Badminton racket








Drill



Knife








 

                See saw



Corksrew







                Chisel



Door stopper










G-clamp



Types of simple machine


Lever

Wedge

Screw
















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Simple machines

A simples machine is a tool or device that usually has only one function and a few or no moving parts. Do your know which device missing as below animation?

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Vocabulary Unit 6


 
Vocabulary
Unit 6 Eclipses

L1 Eclipses











                                            

English
Bahasa Melayu
Bahasa Cina
1.
block
menghalang
阻挡
2.
completely
sepenuhnya
完全
3.
component
komponen
组件
4.
corona
korona
日冕
5.
covered
dilindungi
遮盖
6.
dark part
bahagian gelap
黑暗部分
7.
discovery
penemuan
发现
8.
eclipse
gerhana
日蚀/月食

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Unit 6 Worksheet C


B.Fill in the blanks with the correct answer.

       Moon

Full moon

damaged

Straight line                                Earth



1.During the eclipse of the Moon, the ____________________ is    in between the Sun and the Moon.  

                                                                                                          

2. During the eclipse of the Sun, the ___________________ is  in between the Sun and the Earth.


3.An eclipse occurs when the Sun, Earth and Moon are in a  
 ______________________.

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Unit 6 Worksheet B

Write ‘True’ or ‘False’ to each statement below.

1.Eclipses occur due to the light property that light
   cannot pass through opaque objects.



2.The eclipse of the Sun can only occur when the   
    Moon is in the phase of new moon.



3.The eclipse of the Moon can occurs at any of the  
Moon phases.



4.Partial eclipse of the Moon can be observed
   when the Moon is in the Earth’s umbra.



5.Corona can be observed when the Sun is in total  
eclipse.



6.The total eclipse of the Sun can be observed at
   any part of the Earth.






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