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- Question
Gasoline is useful in cars because it has
Options- A. chemical potential energy
- B. electrical potential energy
- C. gravitational potential energy
- D. kinetic energy
- Correct Answer
- chemical potential energy
ExplanationGasoline 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.
- 1. Through which light cannot pass?
Options- A. Notebook paper
- B. Water
- C. Book
- D. Sun glasses Discuss
- 2. Which of these instruments is used to measure the wind speed?
Options- A. Anemometer
- B. Inclinometer
- C. Fathometer
- D. Calorimeter Discuss
- 3. Magnetic striping is evidence of Discuss
- 4. At the center of the sun, fusion converts hydrogen into
Options- A. Helium
- B. Plutonium
- C. Water
- D. Carbon Discuss
- 5. At what distance from the earth is gravity zero Discuss
- 6. Heat transfer by conduction occurs when molecules
Options- A. Collide
- B. Combine
- C. Heated
- D. None of the above Discuss
- 7. Heat flows as a result of difference of _____.
Options- A. Temperature
- B. Density
- C. mass
- D. Volume Discuss
- 8. 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
- 9. 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
- 10. The material used in electric heater is
Options- A. Tungsten
- B. Nichrome
- C. Brass
- D. Steel Discuss
Physics problems
Search Results
Correct Answer: Book
Explanation:
The objects through which light cannot pass are called as Opaque objects. Some objects allow some light to pass through them and are called as Translucent objects. The objects which allow all the light to pass through them are called as Transparent objects.
Here in the given options Book is an example of opaque object as it does not allow light to pass through it. Water is transparent object and notebook paper and sun glasses are examples of translucent objects.
Correct Answer: Anemometer
Correct Answer: Magnetic striping is evidence of seafloor spreading
Correct Answer: Helium
Correct Answer: Gravitational force is the force that binds everything at the surface of the earth It holds at what distance from the earth is gravity zero
Correct Answer: Collide
Correct Answer: Temperature
Correct Answer: 500 J
Correct Answer: Surge protector
Correct Answer: Nichrome
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