Advertisements
Advertisements
प्रश्न
Tick the most appropriate answer.
Friction is offered by
विकल्प
solids
liquids
gases
all of these
Advertisements
उत्तर
all of these
APPEARS IN
संबंधित प्रश्न
When a glass rod is rubbed with a piece of silk cloth the rod ______.
Write true or false.
Liquids offer more friction than the gases.
Tick the most appropriate answer.
Force of friction comes into play when a/an
Tick the most appropriate answer.
Friction produces
State if the following statement is true or false. Correct the statement if it is false.
Friction is offered by all the three states of matter.
Answer the following in short.
When you push something heavy, the resistance you feel decreases as soon as the object starts moving. Explain the reason.
Answer the following in detail.
Describe three different ways by which friction can be increased to help us in various situations?
Match the following.
| Column I | Column II | |
| a) | Static friction | Viscosity |
| b) | Kinetic friction | Least friction |
| c) | Rolling friction | Objects are in motion |
| d) | Friction between the liquid layers | Objects are sliding |
| e) | Sliding friction | Objects are at rest |
Explain how friction can be minimized.
Complete the analogy.
Knot in a thread : ______ friction :: Ball bearing : ______ friction.
