Brittleness and Elasticity

Q.

What happens when a glass sheet accidentally falls?

Q.

After prolonged use, springs deform permanently because of _________.

Q. A rubber band changes its shape on stretching then why it is called solid?

Q. Raj dropped a glass frame on the floor and it broke. Which property of glass is responsible for this?

1. Ductility
2. Brittleness
3. Transparency
4. Malleability

Q. Which property of substances is used in the string of a bow?

1. Sonority
2. Malleability
3. Solubility
4. Elasticity

Q. Consider the following statements:
Statement I : Rubber can regain its initial shape when released after stretching.
Statement II : A spring cannot regain its initial shape once stretched.

Which of the following is correct about these statements?

1. Statement I is true
2. Statement I is false
3. Statement II is true
4. Statement II is false

Q. Property due to which substances regain their original shape and size on removal of force is called:

1. ductility
2. elasticity
3. malleability
4. sonority

Q. Property due to which substances break into small pieces on applying pressure is called:

1. ductility
2. brittleness
3. hardness
4. malleability