Discussion
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- Question
The material used in electric heater is
Options- A. Tungsten
- B. Nichrome
- C. Brass
- D. Steel
- Correct Answer
- Nichrome
- 1. Which of the following is a device designed to protect electrical devices from voltage spikes?
Options- A. Voltage unloader
- B. Surge protector
- C. Heat protector
- D. Current unloader Discuss
- 2. If a person moves a trolley for a distance of 10 m with a force of 50 N, then the work done is
Options- A. 0.2 J
- B. 5 J
- C. 20 J
- D. 500 J Discuss
- 3. Heat flows as a result of difference of _____.
Options- A. Temperature
- B. Density
- C. mass
- D. Volume Discuss
- 4. Heat transfer by conduction occurs when molecules
Options- A. Collide
- B. Combine
- C. Heated
- D. None of the above Discuss
- 5. Gasoline is useful in cars because it has
Options- A. chemical potential energy
- B. electrical potential energy
- C. gravitational potential energy
- D. kinetic energy Discuss
- 6. Increased wind speed is accompanied by a reduced air _____________.
Options- A. humidity
- B. pressure
- C. density
- D. aridity Discuss
- 7. Rate of change of displacement is known as ............
Options- A. Acceleration
- B. Velocity
- C. Speed
- D. Distance Discuss
- 8. An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is Newton's
Options- A. First law
- B. Second law
- C. Third law
- D. Fourth law Discuss
- 9. Momentum is measured as the product of :
Options- A. Mass and inertia
- B. Mass and force
- C. Mass and velocity
- D. Mass and acceleration Discuss
- 10. For every action, there is an equal and opposite reaction, is Newton's
Options- A. First law
- B. Second law
- C. Third law
- D. Fourth law Discuss
Physics problems
Search Results
Correct Answer: Surge protector
Correct Answer: 500 J
Correct Answer: Temperature
Correct Answer: Collide
Correct Answer: chemical potential energy
Explanation:
Gasoline is a colorless petroleum-derived flammable liquid that is used primarily as a fuel in spark-ignited internal combustion engines. It consists mostly of organic compounds obtained by the fractional distillation of petroleum, enhanced with a variety of additives. It is also called as Petrol. It has chemical potential energy, in combustion it is turned into light, sound, heat and kinetic energy.
Correct Answer: pressure
Correct Answer: Velocity
Correct Answer: First law
Correct Answer: Mass and velocity
Correct Answer: Third law
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