## Class 8 - Science

#### Friction

Q&A
Notes
Question:
Explain why sportsmen use shoes with spikes.

Sportsmen use shoes with spikes because these shoes give them a better grip while running. This is because the force of friction between the shoes and the ground increases with the help of spikes.

Friction - Questions
1. static, sliding, rolling
2. wet marble floor, dry marble floor, newspaper and towel
3. Suppose your writing desk is tilted a little. A book kept on it starts sliding down. Show the direction of frictional force acting on it.
4. Iqbal has to push a lighter box and Seema has to push a similar heavier box on the same floor. Who will have to apply a larger force and why?
5. Explain why sliding friction is less than static friction.
6. You spill a bucket of soapy water on a marble floor accidentally. Would it make it easier or more difficult for you to walk on the floor? Why?
7. Give examples to show that friction is both a friend and a foe.
8. Explain why objects moving in fluids must have special shapes.
9. Explain why sportsmen use shoes with spikes.
General Knowledge Quiz
3001 Bizarre Facts
Dictionary
Elementary English Grammar Test
Standard English Grammar Test
Daily English Quiz
English Test
Grammar Examination
ESL / EFL Test
Grammar Test
Antonyms
Synonyms
Homonyms
Vocabulary Examination
Word Analogy
Vocabulary Flashcards
Idioms
Idioms Quiz
Quantitative Aptitude Test
iQ Quiz Game
Verbal Reasoning Quiz - Mind Game