Tag: nature of things

Quizzes (10) Questions (75)

Questions Related to nature of things

Multiple choice chemistry nature of things properties of materials grouping and classification of objects sorting materials into groups

Most balloons, tires, and footballs are made of rubber. This is because rubber is:

  1. naturally available

  2. cheap

  3. an electrical insulator

  4. soft and flexible
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Rubber is a ploymer which a naturally available cheap ploymer which is extracted from rubber trees.It is used to prepare ballons,tires and footballs because rubber is both soft and flexible.

Multiple choice chemistry nature of things properties of materials grouping and classification of objects sorting materials into groups

Which of the following is lustrous?

  1. Steel furniture

  2. Wooden furniture

  3. Plastic chair

  4. Football
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Different objects look different from each other according to their material they are made from. The appearance depends on color, hardness, texture, and lustre.  Metals are lustrous due to free electrons on their surfaces. Hence materials made of metals have lustre.

Multiple choice chemistry nature of things properties of materials grouping and classification of objects sorting materials into groups

You are provided with the following four materials as wood, plastic, wool and steel. Which of the given material will you identify as hardest and softest respectively?

  1. Wood and wool

  2. Plastic and steel

  3. Wool and steel

  4. Steel and wool
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Materials which are difficult to compress are called hard and materials which are easy to compress are called soft.

Hard materials :Steel,wood,etc.
Soft materials :Wool,cotton etc.
Here steel >wood>wool [hardness]
So,steel is hardest and wool is soffest.

Multiple choice evs nature of things objects that float or sink substances that sink or float soluble and insoluble substances

The ______ sinks in water while the _______ floats.

  1. ship, boat

  2. paper, paper boat

  3. soap cake, soap case

  4. nail, hammer
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The soap cake sinks in water and the soap case floats because the soap cake is solid and doesn't have empty spaces so to float in water whereas soap case which have empty space in which soap settles that space is filled with air and air which is less denser than water helps the case to floats .

Multiple choice evs nature of things objects that float or sink substances that sink or float soluble and insoluble substances

Which of the following sinks in water?

  1. A boat

  2. A piece of paper

  3. A nail

  4. A stick
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A nail can sinks in water as it is denser and does not have space in it.


Boat and stick are made up of wood and its density is less than water and has spaces between the molecules and paper is also less dense than water so does not sink in water.