สร้างแบบทดสอบ
ปัญหา 1
เลือกประเภท
Which one of the following properties isn't a physical property of matter?
- Density
- Melting point
- Flammability
- Electrical conductivity
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ปัญหา 2
เลือกประเภท
Which state of matter undergoes changes in volume most easily?
- Gas
- Solid
- Fluid
- Liquid
ปัญหา 3
เลือกประเภท
Which one of the following propreties describes a liquid?
- It has its own shape
- Its particles move very rapidly
- Its particles vibrate in place and cannot move past each other
- Its particles are close together but not arranged in a regular pattern
ปัญหา 4
เลือกประเภท
Based on their composition, which substance is different from the others?
- Salt
- Milk
- Vinegar
- Muddy water
ปัญหา 5
เลือกประเภท
Which of the changes of state of matter occur at the same temperature?
- Melting and boiiling
- Melting and freezing
- Boiiling and freezing
- Freezing and condensation
ปัญหา 6
เลือกประเภท
Which one of the following occurs during sublimation?
- A gas turns into a liquid
- A liquid turns into a solid
- A solid turns directly into a gas
- A gas turns directly into a solid
ปัญหา 7
เลือกประเภท
Which change of state of matter brings about the formation of clouds?
- freezing
- deposition
- sublimation
- condensation
ปัญหา 8
เลือกประเภท
Which subatomic particle will move toward the positive plate in an electric field?
- protons
- neutrons
- electrons
- Both neutrons and electrons
ปัญหา 9
เลือกประเภท
Which one of the following propreties is a property of metals?
- They are brittle
- They are malleable
- They are poor conductors of electricity
- They have low melting points and boiling points
ปัญหา 10
เลือกประเภท
Which one of the following elements conduct better at higher temperatures?
- Iron
- Silicon
- Copper
- Sodium
ปัญหา 11
เลือกประเภท
Which one of the following elements is most suitable for making electric wires?
- Boron
- Carbon
- Silicon
- Aluminium
ปัญหา 12
เลือกประเภท
What material can protect you from gamma radiation?
- A thin sheet of lead
- A thick sheet of plastic
- A thick sheet of concrete
- A thick sheet of aluminium
ปัญหา 13
เลือกประเภท
Which of the following substances are a compound, a solution, and a colloid, respectively?
- Common salt, fog, and milk
- water, milk, and muddy water
- brass, vinegar, and milk of magnesia
- carbon dioxide, air, and coconut milk
ปัญหา 14
เลือกประเภท
Which one of the following statements is correct for compounds?
- A solution is a type of compound
- compounds are heterogeneous mixture
- compound are pure substances and are homogeneous
- compounds consist of two or more substances combined in any ratio
ปัญหา 15
เลือกประเภท
Which mixture contains visible that can settle unless the mixture is stirred
- A colloid
- A solution
- A suspension
- An emulsion
ปัญหา 16
เลือกประเภท
Which one of the following statements describes the difference between a colloid and a suspension?
- Particles in colloids are larger than those in suspensions
- A suspension sctters light beams, while a colloid does not scatter light beams
- A colloid is a homogeneous mixture, while a suspension is a heterogeneous mixture
- Particles in. suspensions are visible to the naked eye, while particles in colloids are not
ปัญหา 17
เลือกประเภท
Which one of the following substances will percipitate when left undisturbed?
- milk
- syrup
- saline
- milk of magnesia
ปัญหา 18
เลือกประเภท
Which property can be used to distinguish between a true solution and a colloid?
- Precipitation
- Particle size
- Light scattering
- Light reflection
ปัญหา 19
เลือกประเภท
Which one of the following substances boils over a range of temperatures?
- Sugar
- Vinegar
- Mercury
- Common salt
ปัญหา 20
เลือกประเภท
From the given graph, what type of substance is A, and what is its state?
- A solution in solid state
- A solution in liquid state
- A compound in solid state
- A compound in liquid state
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