WorksheetsIS1 T1 Intro to Matter
Total questions: 36
Worksheet time: 18mins
Name
Class
Date
1.
What is matter/什麼是物質
a)
Anything visible or touchable/任何可見或可觸摸的東西
b)
Anything with mass and volume/任何具有質量並佔據空間的東西
c)
Only solids liquids and gases/只有固體液體和氣體
d)
Any physical object/任何物理物體
2.
Which of these is NOT an example of matter/以下哪一項不是物質的例子
a)
Air/空氣
b)
Light/光
c)
Water/水
d)
Metal/金屬
3.
Which property of matter allows us to measure how much space it occupies/哪種物質的特性允許我們測量它佔據的空間
a)
Mass/質量
b)
Volume/體積
c)
Density/密度
d)
Shape/形狀
4.
Why is water considered a compound/為什麼水被認為是化合物
a)
It contains hydrogen and oxygen atoms chemically bonded/它含有化學鍵結的氫原子和氧原子
b)
It can exist in solid liquid and gaseous states/它可以以固體液體和氣體形式存在
c)
It has no fixed shape/它沒有固定形狀
d)
It has mass and takes up space/它具有質量並佔據空間
5.
What distinguishes a compound from a mixture/化合物與混合物的區別是什麼
a)
Compounds are chemically bonded mixtures are not/化合物是化學鍵結的混合物不是
b)
Mixtures are made of only one element/混合物只由一種元素組成
c)
Compounds can be physically separated/化合物可以通過物理方式分離
d)
Mixtures have definite proportions/混合物有固定比例
6.
A chef wants to separate a mixture of oil and water Which method would work best/案例研究 一名廚師想將油和水的混合物分離 哪種方法最有效
a)
Filtration/過濾
b)
Using a funnel/倒漏斗
c)
Evaporation/蒸發
d)
Distillation/蒸餾
7.
Why is dissolving sugar in water considered a physical change/為什麼將糖溶解在水中被認為是物理變化
a)
The sugar molecules are chemically altered/糖分子發生了化學改變
b)
The sugar remains chemically the same/糖在化學上保持不變
c)
A new substance is formed/形成了新物質
d)
The sugar cannot be recovered/糖無法回收
8.
Which of these is a chemical change/以下哪一項是化學變化
a)
Breaking a glass/打碎玻璃
b)
Burning wood/燃燒木材
c)
Dissolving salt in water/在水中溶解鹽
d)
Melting ice cube/融化冰塊
9.
A student observes that a mixture of sand and iron filings can be separated with a magnet What does this suggest/案例研究 一名學生觀察到沙子和鐵屑的混合物可以用磁鐵分離 這說明了什麼
a)
Sand is magnetic/沙子具有磁性
b)
Iron is a compound/鐵是一種化合物
c)
The mixture is homogeneous/該混合物是均質的
d)
Iron filings are attracted to magnets/鐵屑會被磁鐵吸引
10.
What is the formula for density/密度的公式是什麼
a)
Density = Mass ÷ Volume/密度 = 質量 ÷ 體積
b)
Density = Mass × Volume/密度 = 質量 × 體積
c)
Density = Volume ÷ Mass/密度 = 體積 ÷ 質量
d)
Density = Mass + Volume/密度 = 質量 + 體積
11.
An object has a mass of 24 g and a volume of 8 cm³ What is its density/案例研究 一個物體的質量為24克 體積為8立方厘米 它的密度是多少
a)
2 g/cm³
b)
3 g/cm³
c)
4 g/cm³
d)
6 g/cm³
12.
What is the law of conservation of mass/什麼是質量守恆定律
a)
Mass increases during chemical reactions/質量在化學反應中增加
b)
Mass is neither created nor destroyed/質量既不會被創造也不會被銷毀
c)
Mass is destroyed in exothermic reactions/質量在放熱反應中被銷毀
d)
Mass is lost during physical changes/質量在物理變化中丟失
13.
A scientist burns a candle and observes that its mass decreases What explains this observation/案例研究 一名科學家燃燒蠟燭並觀察到它的質量減少 這一現象如何解釋
a)
The mass is destroyed during combustion/質量在燃燒過程中被銷毀
b)
The wax is converted into gas and escapes/蠟轉化為氣體並逸出
c)
The wax melts into a liquid/蠟融化成液體
d)
The mass of the candle remains the same/蠟燭的質量保持不變
14.
Which of these is an example of a homogeneous mixture/以下哪一項是均質混合物的例子
a)
Salad/沙拉
b)
Air/空氣
c)
Sand and gravel/沙子和石子
d)
Oil and water/油和水
15.
Which of these best describes a physical change/以下哪一項最能描述物理變化
a)
A new substance is formed/形成新物質
b)
A substance changes state size or shape/物質改變了狀態大小或形狀
c)
Energy is released or absorbed/釋放或吸收能量
d)
It cannot be reversed/它是不可逆的
16.
A mystery liquid is poured into a container and forms distinct layers with water and oil What can be inferred about the liquid/案例研究 一種神秘液體被倒入容器中 並在水和油之間形成明顯的層次 可以推測這種液體的什麼特性
a)
It is denser than water but less dense than oil/它比水密度大但比油密度小
b)
It is less dense than both water and oil/它比水和油的密度都小
c)
It is more dense than both water and oil/它比水和油的密度都大
d)
Its density is equal to water/它的密度等於水
17.
Why does oil float on water/為什麼油會浮在水面上
a)
Oil has a lower density than water/油的密度比水低
b)
Oil molecules are smaller than water molecules/油分子比水分子小
c)
Oil has no mass/油沒有質量
d)
Oil is a chemical compound/油是一種化合物
18.
A balloon is placed in a freezer and shrinks in size What happens to the gas inside/案例研究 一個氣球被放入冰箱中並縮小了 氣球內部的氣體發生了什麼變化
a)
The mass of the gas decreases/氣體的質量減少
b)
The volume of the gas decreases/氣體的體積減少
c)
The density of the gas increases/氣體的密度增加
d)
The gas becomes a liquid/氣體變為液體
19.
Which of these is a heterogeneous mixture/以下哪一項是非均質混合物
a)
Saltwater/鹽水
b)
Oil and vinegar/油和醋
c)
Air/空氣
d)
Lemonade/檸檬水
20.
What happens to most substances when they are heated/當大多數物質被加熱時會發生什麼
a)
Their volume increases/它們的體積增加
b)
Their density increases/它們的密度增加
c)
Their mass increases/它們的質量增加
d)
Their state always changes/它們的狀態總是改變
21.
Why is a rusting nail an example of a chemical change/為什麼生鏽的釘子是一個化學變化的例子
a)
The nail’s size changes/釘子的大小發生變化
b)
The color and composition of the nail change/釘子的顏色和組成發生變化
c)
The nail melts/釘子融化
d)
The nail is broken into smaller pieces/釘子被分成小塊
22.
What distinguishes elements from compounds/元素與化合物的區別是什麼
a)
Elements are made of only one type of atom/元素只由一種類型的原子組成
b)
Compounds cannot be broken down/化合物無法分解
c)
Elements are always in a gaseous state/元素總是處於氣態
d)
Compounds are pure substances/化合物是純物質
23.
Why can mixtures be separated by physical methods/為什麼混合物可以用物理方法分離
a)
Their components retain their properties/它們的組成部分保留其特性
b)
Their components are chemically bonded/它們的成分是化學鍵結的
c)
They are made of one substance/它們由一種物質組成
d)
They are always homogeneous/它們總是均質的
24.
A scientist observes that heating a substance causes it to break into two simpler substances What type of change is this/案例研究 科學家觀察到加熱一種物質會使其分解成兩種更簡單的物質 這是哪種類型的變化
a)
Physical change/物理變化
b)
Chemical change/化學變化
c)
Both changes/同時發生
d)
No change/沒有變化
25.
Why does the mass of a substance remain constant in a closed system during a chemical reaction/為什麼在化學反應過程中 封閉系統中的物質質量保持不變
a)
New mass is created/質量是被創造的
b)
Atoms are neither created nor destroyed/原子既不會被創造也不會被銷毀
c)
Energy is absorbed/能量被吸收
d)
The system loses matter/系統失去了物質
26.
Which of the following describes a compound/以下哪一項描述了化合物
a)
It contains two or more elements chemically bonded/它含有兩種或更多化學鍵結的元素
b)
It is made of a single type of atom/它由一種類型的原子組成
c)
It cannot be broken down into simpler substances/它無法分解為更簡單的物質
d)
It retains the properties of its components/它保留其成分的特性
27.
A piece of wood is burned producing ash and smoke What evidence shows this is a chemical change/案例研究 一塊木頭被燃燒 產生灰燼和煙霧 哪個證據表明這是化學變化
a)
The shape of the wood changes/木頭的形狀發生變化
b)
The mass of the wood increases/木頭的質量增加
c)
New substances are formed/產生了新物質
d)
The wood absorbs heat/木頭吸收熱量
28.
What happens to the density of most substances when heated/當大多數物質被加熱時 密度會發生什麼變化
a)
It decreases/它減少
b)
It increases/它增加
c)
It remains the same/它保持不變
d)
It doubles/它翻倍
29.
Which of the following methods is best for separating a soluble solid from a liquid/以下哪種方法最適合將可溶固體與液體分離
a)
Evaporation/蒸發
b)
Filtration/過濾
c)
Magnetism/磁力
d)
Distillation/蒸餾
30.
Why is flammability considered a chemical property/為什麼可燃性被認為是化學特性
a)
It involves a change in state/它涉及狀態的改變
b)
It describes a reaction with oxygen/它描述了與氧氣的反應
c)
It can be observed without altering the substance/它可以在不改變物質的情況下觀察到
d)
It depends on the temperature/它取決於溫度
31.
A solid dissolves in water producing bubbles and a temperature increase What type of change is this/案例研究 一種固體溶解在水中 產生氣泡並引起溫度升高 這是哪種類型的變化
a)
Physical change/物理變化
b)
Chemical change/化學變化
c)
No change/沒有變化
d)
Both physical and chemical changes/同時是物理和化學變化
32.
What makes a substance’s boiling point a physical property/為什麼物質的沸點是物理特性
a)
It remains constant during heating/在加熱過程中保持不變
b)
It does not involve a chemical reaction/它不涉及化學反應
c)
It depends on the environment/它取決於環境
d)
It changes the substance chemically/它在化學上改變了物質
33.
What type of mixture is saltwater/鹽水是哪種類型的混合物
a)
Heterogeneous/非均質混合物
b)
Homogeneous/均質混合物
c)
Compound/化合物
d)
Pure substance/純物質
34.
A balloon pops when placed in the sun What causes this/案例研究 氣球在陽光下破裂 這是什麼原因造成的
a)
The gas inside the balloon expands/氣球內的氣體膨脹
b)
The density of the gas decreases/氣體的密度減少
c)
The balloon becomes weaker/氣球變得更脆弱
d)
The gas inside condenses/氣體在內部凝結
35.
Why is mass conserved in a chemical reaction/為什麼質量在化學反應中是守恆的
a)
No new atoms are created or destroyed/沒有新原子被創造或銷毀
b)
The system gains energy/系統獲得能量
c)
Reactants always weigh less than products/反應物總是比生成物輕
d)
The reaction takes place in an open system/反應發生在開放系統中
36.
An iron nail left in water develops a reddish-brown coating What is this process called/案例研究 一根鐵釘留在水中 表面形成紅棕色的塗層 這一過程被稱為什麼
a)
Rusting/生銹
b)
Boiling/沸騰
c)
Melting/融化
d)
Evaporation/蒸發
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