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- Question
Rolling friction is caused by ____ from the following?
Options- A. Non-elastic effects
- B. Gravity
- C. Power dissipation
- D. Buoyancy
- Correct Answer
- Non-elastic effects
ExplanationRolling friction or rolling drag is the force resisting the motion when a body rolls on a surface. It is mainly caused by non-elastic effects, that is, not all the energy needed for deformation of the wheel, roadbed, etc... is recovered when the pressure is removed.
Another cause of rolling resistance lies in the slippage between the wheel and the surface, which dissipates energy.
- 1. Who invented Gunpowder?
Options- A. G. Ferdinand Von Zeppelin
- B. Sir Frank Whittle
- C. Roger Bacon
- D. Leo H Baekeland Discuss
- 2. Jeev Milkha Singh is associated with which sports?
Options- A. Volleyball
- B. Golf
- C. Athletics
- D. Hockey Discuss
- 3. The largest dry rock in India is situated at
Options- A. Mumbai
- B. Cochin
- C. Marmugao
- D. Kolkata Discuss
- 4. The landmass of which of the following continents is the least?
Options- A. Africa
- B. Asia
- C. Australia
- D. Europe Discuss
- 5. 'Vijay Stambha' is situated in
Options- A. Jaipur
- B. Agra
- C. Delhi
- D. Chittor Discuss
- 6. Balloons are filled with
Options- A. nitrogen
- B. helium
- C. oxygen
- D. argon Discuss
- 7. Plants hormone that induces cell division is
Options- A. auxins
- B. gibberellins
- C. kinins
- D. domins Discuss
- 8. The Vedic deity Indra was the Goddess of
Options- A. wind
- B. eternity
- C. rain and thunder
- D. fire Discuss
- 9. The minimum age required to become a member of Rajya Sabha is
Options- A. 21 years
- B. 25 years
- C. 30 years
- D. 35 years Discuss
- 10. The main factor determining a region's climate is
Options- A. longitude
- B. latitude
- C. temperature
- D. All of the above Discuss
More questions
Correct Answer: Roger Bacon
Correct Answer: Golf
Correct Answer: Marmugao
Correct Answer: Australia
Correct Answer: Chittor
Correct Answer: helium
Correct Answer: kinins
Correct Answer: rain and thunder
Correct Answer: 30 years
Correct Answer: latitude
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