Tag: evs

Questions Related to evs

A mixture is made from different substances that are ___________.

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. not chemically joint

  2. chemically joint

  3. physically joint

  4. not physically joint

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Correct Option: A
Explanation:

A mixture is made from different substances that are not chemically joined. 


For example powdered iron and powdered sulphur mixed together makes a mixture of iron and sulphur. They can be separated from each other without a chemical reaction.

Everything in the universe is made up of material called as _______.

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. life

  2. water

  3. matter

  4. None of the above

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Correct Option: C
Explanation:

Everything in this universe is made up of material which scientists have named "matter". 


It can be living or non-living. 

For example, human beings are matter as well as a duster is also a matter.

Hence the correct option is C.

Which of the following cannot be considered as matter?

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. Love

  2. Nitrogen

  3. Mixture

  4. Water

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Correct Option: A
Explanation:

Love cannot be considered as matter as it does not have mass and volume.

Which of the following is the correct properties of matter?

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. have no mass but occupies space

  2. have mass but occupies no space

  3. have no mass and occupies no space

  4. it have mass and occupies space

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Correct Option: D
Explanation:

Matter is something that has mass and occupies space. 


It can be living or non-living. 

Hence the correct option is D.

Which of the following is not matter?

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. Oxygen

  2. Microwaves

  3. Water

  4. All of above

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Correct Option: B
Explanation:

Matter is something that occupies space and has volume.
Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter. 

It does not have mass and volume. It is neither a solid, liquid or gas. Hence, microwave cannot be considered as matter.
Hence, the correct option is $B$.

Change of state is also called as _____________.

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. phase change

  2. mass change

  3. volume change

  4. particle change

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Correct Option: A
Explanation:

Matter can move from one state to another, but can still be the same substance. A change of state, also called a phase change, is a physical change from one state of matter to another, 

for example, from solid to liquid or from liquid to gas.

Why  helium is a matter?

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. It has mass.

  2. It is a gas.

  3. It occupies space.

  4. All of above.

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Correct Option: D
Explanation:

Matter is something that has mass and occupies space. Helium is an inert gas which has mass and volume. Hence, it can be considered as a matter.


Hence, the correct option is $D$.

Matter has both _________ and _________.

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. mass, volume

  2. mass, weight

  3. life, particle

  4. None of the above

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Correct Option: A
Explanation:

Matter is defined as something which has both mass and volume. 


It occupies space and can be felt.

Hence the correct option is A.

Matter consist of particles such as ____.

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. ions

  2. molecules

  3. atoms

  4. All of the above

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Correct Option: D
Explanation:

All materials are made up of matter, and matter consists of particles such as atoms, ions or molecules.

Chemically, matter can be classified as ___________.

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. pure and impure substances

  2. elements, compounds and mixtures

  3. solids, liquids and gases

  4. metals and non-metals

Show answer
Correct Option: A
Explanation:

Matter can be classified chemically as pure substance (elements and compounds) and mixture or impure substance.