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- Question
Malleability and Ductility of metals can be accounted due to
Options- A. the crystalline structure in metal
- B. the interaction of electrons with metal ions in the lattice
- C. the presence of electrostatic force
- D. the capacity of layers of metal ions to slide over the other
- Correct Answer
- the capacity of layers of metal ions to slide over the other
- 1. What is the main function of an ignition safety switch? Discuss
- 2. Air pressure is measured in which of the following units?
Options- A. Steridian
- B. kg/mts
- C. Newton
- D. Pascal Discuss
- 3. What frequency range is the high frequency band?
Options- A. 3 kHz
- B. 3 to 30 MHz
- C. 30 to 300 MHz
- D. 10 GHz Discuss
- 4. Which of the following is a Non Renewable Resource of Energy?
Options- A. Wind Power
- B. Hydrogen Fuel
- C. Natural Gas
- D. Solar Energy Discuss
- 5. The Length of the Day is determined in
Options- A. length of the hours
- B. length of the year
- C. astronomical units
- D. solar terms Discuss
- 6. Which results in an increase in power?
Options- A. doing more work in less time.
- B. doing less work in more time.
- C. doing less work in less time.
- D. doing more work in more time. Discuss
- 7. Which method of expressing direction is indicated in the illustration?
Options- A. Section
- B. Interjuction
- C. Intersection
- D. None of the above Discuss
- 8. Which alternative energy source is exhaustible?
Options- A. tidal energy
- B. wind energy
- C. solar energy
- D. geothermal energy Discuss
- 9. what is the source of energy for the water cycle?
Options- A. Rain water
- B. Sun
- C. Clouds
- D. Animals Discuss
- 10. Sources of geothermal power are
Options- A. water
- B. earth's heat
- C. Both A & B
- D. None of the above Discuss
Physics problems
Search Results
Correct Answer: An ignition safety switch is a safety device can shut off the engine if the operator falls off the PWC or out of the powerboat, or is otherwise thrown from the proper operating position How it works: It allows the engine of the vehicle to shut off or to be turned off immediately as it is to prevent further complications to happen as this is being used when an emergency is launched Where it is used: Most powerboats and PWCs come equipped by the manufacturer with an emergency engine cut-off switch
Correct Answer: Pascal
Explanation:
Pressure = (Net Force) / (Applied area) = Newton / square meters
Measuring units of pressure are:
. Pascal
. Bar
. Torr
. Pounds per square inch (psi)
. Standard atmosphere (atm).
Correct Answer: 3 to 30 MHz
Explanation:
The HF band is based on frequencies 3 to 30 Mhz. AM radio stations are in the HF band but normally are stated in kilohertz.
Correct Answer: Natural Gas
Explanation:
Natural Gas is a Non Renewable Resource of Energy because that does not renew itself once used, unlike the other choices.
It is a resource that will not be naturally replenished.
Correct Answer: astronomical units
Explanation:
The Length of the Day is determined in Astronomical Units.
The length of a day corresponds to the time the Earth takes to turn around on its axis, which is approximately 24 hours. But it's not exactly 24 hours.
This phenomenon is due to tides raised by the Moon which slow Earth's rotation. Because of the way the second is defined, the mean length of a day is now about 86 400.002 seconds, and is increasing by about 1.7 milliseconds per century.
Correct Answer: doing more work in less time.
Explanation:
Doing more work in less time, results in an increase in power to do a work.
Correct Answer: Intersection
Correct Answer: geothermal energy
Explanation:
Based on conventionality in deriving energy, energy sources could be classified as
Conventional ::
coal, oil, hydro, nuclear, etc... sources which can be used up or exhaustible.
(and)
Non - conventional ::
solar, wind, tidal, geothermal, biogas, etc... sources which are not exhausted.
Among the given options, Geothermal energy is the alternative energy source among all the choices that are given in the question, that is exhaustible.
Correct Answer: Sun
Correct Answer: Both A & B
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