WorksheetsSHCCES_P6_2nd_SCI&GS_EXAM
Total questions: 90
Worksheet time: 1hrs 6mins
What does a pulley do?
Help lift heavy things
Split things apart
Hold things together
Cook dinner
Which machine DOES NOT use a wheel and axle?
Car
Bicycle
Chair
What is this?
Wedge
Lever
Pulley
Ramp
What do levers do?
Hold things together
Help lift heavy things
Push things apart
Keep things cold
What is this?
Lever
Screw
Pulley
Ramp
In inclined plane is also called a...
Ramp
Button
Refridgerator
Car
Moving something up a LESS STEEP incline is...
Not possible
More work
Less work
Steam engines brought benefits and problems. Match the following pictures with the descriptions.
Industrial development
Transport development
Pollution
When using machines, we should pay attention to the (a) . We should (b) the machines regularly and get it repaired by a (c) (d) if necessary.
A generator converts __ energy to __ energy.
kinetic, potential
kinetic, electrical
potential, electrical
potential, kinetic
Rollers
Pulley
Inclined Plane
Lever
Pulley
Inclined plane
Lever
Rollers
Which type of simple machine is used in method B and C?
(a)
This man wants to move a heavy box to a higher place. Which method should he use so that he can save force?
Method A
Method B
Method C
The inclined plane in picture B lets him move the box with less force than that in picture C because the slope is (a) .
How can you reduce the force needed to push an object to the top of the ramp?
cover the surface with carpet
increase the length of the ramp
increase the height of the ramp
decrease the length of the ramp
Which of the following shows the use of rollers?
Rollers reduce the (a) between a surface and the object moving on the surface, so less force is needed to move the object
Identify the three important points of the nutcracker.
Can using a nutcracker reduce effort?
Yes
No
The effort arm of the nutcracker is (a) than that of the load arm, thus, it reduces effort.
Label the three points of the pliers shown in the picture
A (a) pulley is shown in the picture.
The movable pulley reduces effort. The direction of the object's motion is (a) the direction of the force.
A boy uses a fixed pulley to lift a load. How does this machine help the boy to do work?
by changing the direction
by reducing total work
by decreasing distance
by reducing effort force
Which model will require the least amount of force?
pulley 1
pulley 2
pulley 3
pulley 4
How can the lever be balanced?
Add weight to the right side
Move fulcrum right
Add weight to the left side
Move the heavier weight back
If you wanted to make lifting this rock with a lever easier, what could you do?
Make the board on the man’s side of the fulcrum longer
Make the board on the rock’s side of the fulcrum longer
Move the fulcrum closer toward the man
None of the above
In order to exert the least amount of force, where should the fulcrum be placed?
position D
position C
position B
position A
What is the source of energy for this machine?
Animal
Human
Water
Wind
What is the source of energy for this machine?
Animal
Human
Water
Wind
What is the name of this machine?
(a)
Who invented the steam engine?
(a)
Steam engine produces (a) to power machines
Which of the following is NOT related to the improvement of steam engine?
Increased air pollution
Development in transportation
Industrial development
Start of Information era
What is the name of this machine?
Steam engine
Generator
Computer
Telephone
A generator changes (a) energy to electrical energy
Who is the inventor of the telephone?
Michael Faraday
Thomas Edison
Alexander Bell
John Logie Baird
What year was the first computer invented?
(a)
The Information Age started with the wide application of (a) and electronic technology.
People in the past invented different machines to make their work easier. What drives these machines?
Steam engine produces (a) to power machines
Who invented the steam engine?
(a)
What is the name of this machine?
(a)
What is the name of this machine?
Steam engine
Generator
Computer
Telephone
Who is the inventor of the telephone?
Michael Faraday
Thomas Edison
Alexander Bell
John Logie Baird
A generator changes (a) energy to electrical energy
What year was the first computer invented?
(a)
The Information Age started with the wide application of (a) and electronic technology.
a person who fears or dislikes new technology, especially computers, and does not want to use it.
tech-savvy
technophobe
a techie
important development or discovery.
obsolete
high tech
breakthrough
a new idea or factor that significantly changes an existing situation or way of doing something.
game changer
impact
cybersecurity
an area with an accessible wireless network, often a public place.
internet
website
wifi hotspot
simple to understand and easy to use.
viral
user-friendly
computer literate
a person who knows a lot about technology, especially computers or other electronic equipment.
outdated
a techie
a programmer
A foe
a friend
an enemy
a tech device
Identify the Technologies
3D Printing
VR
AR
BlockChain
Robotics
What is the definition of innovation?
The process of eliminating ideas
The process of introducing new ideas
The process of ignoring ideas
The process of introducing old ideas
Which of the following is NOT an example of nanomaterials?
Waterproof clothes
Ceramic knife
Telephone
Transparent anti UV sunscreen
Nanomaterials are produced by rearranging the tiny parts that make up a (a) .
Genetic modification is an area of (a) .
Genetic modification can increase food production and improve (a) .
Cloning can be used in (a) .
If you could clone any animal, what would it be?
Which type of innovative technology is this man using?
AR technology
VR technology
3D printing
3D imaging
Problem: "I forgot to bring my cash and my octoppus card"
What invention can solve this problem?
Smartphone payment apps
Intelligent transport systems
Smart traffic lights
Facial recognition systems
Name one problem of innovative technology:
(a) are produced by rearranging the tiny parts that make up a substance.
(a) modification can be used to increase food production and improve food quality.
以下句子的內容正確嗎？
國家之間不會因為領土的爭議引發戰爭。
政治因素不可能導致戰爭或武裝衝突。
第一次和第二次世界大戰、朝鮮戰爭和越南戰爭 都是近代的重要戰爭。
越南戰爭是越南和朝鮮半島爆發的戰爭。
戰爭會帶來甚麼影響？
造成大量難民
人命傷亡
人民失去家園，四處逃難
健康成長
戰爭會帶來甚麼影響？
工廠被破壞，停頓生產。
戰爭期間埋下的地雷
在戰爭後仍威脅當地居民的安全
使土地長期荒廢
以下哪個國家曾因為被懷疑擁有大殺傷力武器而被美國於2003年攻打？
伊朗
伊拉克
伊斯蘭國
伊甸園
以下哪項不是發動戰爭的原因？
保衛自己的領土
奪取別國的疆土
為了進行醫療援助
宗教糾紛
以下哪項不是戰爭帶來的影響？
資源被毁
設施被破壞
造成龐大的人命傷亡
人民的居住環境改善
1937至1945年，日本向中國發動侵華戰爭的主要原因是⋯？
侵略以擴張日本的勢力
維持世界的和平
種族之間的衝突
宗教之間的糾紛
美伊戰爭中，伊拉克認為美國攻打伊拉克的原因是⋯？
保衛自己的疆土
為了石油利益
宗教糾紛
藉此連繫恐怖組織
世界展望會是人道救援機構，也是目前世界最大的傷患關懷照顧機構之一，幫助許多無家可歸、飢餓與患病的傷患族群。
正確
錯誤
下列哪些是「非政府」的國際組織？
聯合國教科文組織
世界衛生組織
紅十字國際委員會
世界展望會
國際奧林匹克委員會
國與國之間，有時因為生存發展相互競爭，甚至造成衝突與對立；有時為了解決共同問題，或擴大競爭力量，進而尋求合作或結盟。
正確
錯誤
生產毛衣需要哪些天然資源?
(種植飼料, 飼養綿羊, 製衣及運輸)
陽光、土壤和水
飼料和水
化石燃料
以下哪項不是人類大規模砍伐森林帶來的影響？
水土流失
動物的棲息地減少
大氣層中二氧化碳減少
下游洪水氾濫的機會增加
以下哪些是引致荒漠化的人類活動？（答案可多於一個）
過度耕作
濫伐森林
過度放牧
開採煤礦
「油污會影響海鳥的飛行能力，以及令一些海洋生物窒息死亡。」這句話對嗎？
對
不對
「人類活動產生温室效應。」這句話對嗎？
對
不對
以下哪些人類活動是令温室效應加劇的主要原因？（答案可多於一個）
工廠排放廢氣
汽車排放廢氣
焚燒森林
種植樹木
以下哪項是緩減氣候變化的方法？
多吃肉少吃菜
使用化石燃料
研發和使用節能科技
多購買需長途運輸的物品
温室效應加劇，引致氣候變化，巨大的暴雨和颱風等極端 (a) 變得頻繁。
