AIC SS2 Physics Assignment
  • 1. 1. Which of the following statements is NOT true about latent heat?
A) It is a measure of the intensity of heat.
B) It depends on the mass of the substance.
C) It is associated with a change in temperature.
D) It is the amount of heat absorbed or released during a change of state.
  • 2. 2. The latent heat of fusion is the heat required to:
A) Change 1 kg of a liquid to a gas at its boiling point.
B) Change the state of a substance without a change in temperature.
C) Increase the temperature of 1 kg of a substance by 1°C.
D) Change 1 kg of a solid to a liquid at its melting point.
  • 3. 3. The specific latent heat of fusion of a substance is defined as the:
A) Change in temperature when the substance melts.
B) Total amount of heat absorbed during melting.
C) Amount of heat required to melt 1 kg of the substance.
D) Time taken for the substance to melt completely.
  • 4. 4. Which of the following factors does NOT affect the specific latent heat of fusion of a substance?
A) PressureTemperature
B) Purity
C) Mass
  • 5. 5. The latent heat of vaporization is the heat required to:
A) Change 1 kg of a solid to a liquid at its melting point.
B) Change the state of a substance without a change in temperature.
C) Increase the temperature of 1 kg of a substance by 1°C.
D) Change 1 kg of a liquid to a gas at its boiling point.
  • 6. 6. The specific latent heat of vaporization of a substance is defined as the:
A) Total amount of heat absorbed during vaporization.
B) Time taken for the substance to vaporize completely.
C) Change in temperature when the substance vaporizes.
D) Amount of heat required to vaporize 1 kg of the substance.
  • 7. 7. How can the specific latent heat of fusion be determined experimentally?
A) By measuring the change in temperature during melting.
B) b) By measuring the time taken for a specific mass to melt.
C) By measuring the volume change during melting.
D) By measuring the amount of heat absorbed to melt a known mass.
  • 8. 8. Which of the following statements about the relationship between specific latent heat of fusion and specific latent heat of vaporization is generally true?
A) The specific latent heat of fusion is always greater.
B) The relationship depends on the specific substance.
C) They are always equal.
D) The specific latent heat of vaporization is always greater.
  • 9. 9. What is the effect of impurities on the boiling point of a liquid?
A) Impurities increase the boiling point.
B) Impurities decrease the boiling point.
C) The effect depends on the specific impurity.
D) Impurities have no effect on the boiling point.
  • 10. 10. How does pressure affect the boiling point of a liquid?
A) The effect depends on the specific liquid.
B) Increasing pressure increases the boiling point.
C) Increasing pressure decreases the boiling point.
D) Pressure has no effect on the boiling point.
  • 11. 11. What is the difference between evaporation and boiling?
A) Boiling occurs only at the boiling point, while evaporation can occur at any temperature.
B) Evaporation is a slower process than boiling.
C) Both involve a change of state from liquid to gas.
D) a) Evaporation occurs only at the boiling point, while boiling can occur at any temperature.
  • 12. 12. What is the melting point of a substance?
A) The temperature at which the substance is completely liquid.
B) The temperature at which the substance starts to melt.
C) The temperature at which the solid and liquid phases coexist in equilibrium.
D) The temperature at which the substance changes from a gas to a liquid.
  • 13. 13. How can the melting point of a substance be determined experimentally?
A) By observing the change in state from solid to liquid.
B) By measuring the time taken for a specific mass to melt.
C) By measuring the volume change
D) By measuring the change in temperature during melting.
  • 14. 14. Which of the following methods can be used to determine the specific latent heat of fusion?
A) By measuring the change in temperature during melting.
B) All of the above
C) By measuring the time taken for a specific mass to melt.
D) By measuring the amount of heat absorbed to melt a known mass.
  • 15. 15. In the method for determining specific latent heat of fusion, what is measured besides the mass of the substance and the heat supplied?
A) Change in volume
B) Time taken for melting
C) None of the above
D) Change in temperature
  • 16. 16. Which of the following methods can be used to determine the specific latent heat of vaporization?
A) By measuring the change in temperature during boiling.
B) By measuring the time taken for a specific mass to vaporize.
C) By measuring the amount of heat absorbed to vaporize a known mass.
D) All of the above
  • 17. 17. In the method for determining specific latent heat of vaporization, what is measured besides the mass of the substance and the heat supplied?
A) Change in volume
B) None of the above
C) Time taken for vaporization
D) Change in temperature (boiling point)
  • 18. 18. Which factors need to be controlled during the experiments to determine specific latent heat?
A) Both (a) and (b)
B) None of the above
C) Pressure and temperature
D) Mass of the substance and type of container
  • 19. 19. What is the importance of using a well-insulated container in these experiments?
A) To ensure accurate measurement of heat absorbed.
B) To prevent heat loss to the surroundings.
C) To maintain a constant temperature.
D) All of the above.
  • 20. 20. A ripple tank is used to demonstrate:
A) Reflection of waves
B) Refraction of waves
C) All of the above
D) Diffraction of waves
  • 21. 21. What are the three main types of waves?
A) Mechanical, electromagnetic, and sound
B) Transverse, longitudinal, and stationary
C) Water, sound, and light
D) Both (a) and (b)
  • 22. 22. The general wave equation relates:
A) Amplitude, intensity, and energy
B) Wavelength, frequency, and speed
C) Pressure, temperature, and volume
D) Displacement, velocity, and acceleration
  • 23. 23. What property of a wave determines its brightness or loudness?
A) Speed
B) Wavelength
C) Amplitude
D) Frequency
  • 24. 24. When a wave reflects from a surface, what happens to it?
A) Speed remains the same (if the medium doesn't change).
B) Wavelength remains the same.
C) All of the above can occur.
D) Frequency remains the same.
  • 25. 25. When a wave bends as it passes through an opening, it is demonstrating:
A) Interference
B) Reflection
C) Refraction
D) Diffraction
  • 26. 26. When two waves overlap, they can either strengthen or weaken each other. This phenomenon is called:
A) Diffraction
B) Refraction
C) Reflection
D) Interference
  • 27. 27. When unpolarized light is passed through a polarizing filter, the light waves will have a specific:
A) Polarization
B) Amplitude
C) Frequency
D) Wavelength
  • 28. 28. What is the application of sound waves in medical imaging?
A) Magnetic resonance imaging (MRI)
B) X-ray imaging
C) Ultrasound imaging
D) Positron emission tomography (PET)
  • 29. 29. Which of the following substances generally has the highest specific latent heat of vaporization?
A) Alcohol
B) Mercury
C) Water
D) Helium
  • 30. 30. How are radio waves used in communication?
A) By carrying information encoded in their frequency
B) All of the above
C) By reflecting off satellites to relay signals
D) By modulating their amplitude to transmit data
  • 31. 31. Which of the following substances generally has the highest specific latent heat of vaporization?
A) Water
B) Mercury
C) Alcohol
D) Helium
  • 32. 32. During the process of solidification, a substance:
A) Absorbs heat from the surroundings.
B) Increases in volume.
C) Does not change its temperature.
D) Releases heat to the surroundings.
  • 33. 33. The specific latent heat of fusion of a substance has units of:
A) J/kg
B) J/kg°C
C) °C
D) °C/kg
  • 34. 34. Why does food cook faster in a pressure cooker compared to a regular pot?
A) Pressure cooker conducts heat more efficiently
B) Pressure cooker traps steam, increasing the humidity and cooking speed.
C) Pressure decreases the boiling point of water, leading to faster boiling.
D) Pressure increases the boiling point of water, allowing for higher cooking temperatures.
  • 35. 35. How does adding salt to water affect its boiling point?
A) It decreases the boiling point.
B) It has no effect on the boiling point.
C) The effect depends on the amount of salt added.
D) It increases the boiling point.
  • 36. 36. What is the main difference between sublimation and evaporation?
A) Sublimation occurs at a specific temperature, while evaporation can occur at any temperature.
B) Sublimation involves a direct change from solid to gas, while evaporation involves a liquid phase.
C) Sublimation is a much faster process than evaporation.
D) Sublimation only occurs for solids, while evaporation occurs for liquids.
  • 37. 37. Why does sweat help cool the body down on a hot day?
A) Sweat reflects sunlight, preventing the body from absorbing heat.
B) Sweat insulates the body, preventing heat loss.
C) Sweat increases the humidity around the body, making it feel cooler.
D) As sweat evaporates, it absorbs heat from the skin, lowering its temperature.
  • 38. 38. What is the relationship between the pressure and the melting point of a substance?
A) Increasing pressure increases the melting point.
B) Pressure has no effect on the melting point.
C) The relationship depends on the specific substance.
D) Increasing pressure decreases the melting point.
  • 39. 39. How can the boiling point of a liquid be determined experimentally?
A) All of the above
B) By measuring the time taken for a specific mass to boil.
C) By measuring the change in temperature during boiling.
D) By observing the change in state from liquid to gas.
  • 40. 40. When a wave travels from a denser medium to a less dense medium, what happens to its?
A) Speed (increases)
B) Frequency (remains constant)
C) Wavelength (increases)
D) All of the above
  • 41. 41. What is the difference between a pure substance and a mixture when considering their melting points?
A) Both pure substances and mixtures have a range of melting points.
B) Pure substances have a single, sharp melting point, while mixtures have a range of melting points.
C) Both pure substances and mixtures have a single, sharp melting point.
D) Mixtures have a single, sharp melting point, while pure substances have a range of melting points.
  • 42. 42. What is the difference between constructive and destructive interference?
A) Constructive interference weakens the resulting wave, while destructive interference strengthens it.
B) d) Constructive interference increases the wavelength, while destructive interference
C) Constructive interference strengthens the resulting wave, while destructive interference weakens it.
D) Constructive interference increases the frequency, while destructive interference decreases it.
  • 43. 43. X-rays are a type of:
A) Longitudinal wave
B) Sound wave
C) Electromagnetic wave
D) Transverse wave
  • 44. 44. What property of light allows us to distinguish between different colors?
A) Polarization
B) Wavelength
C) Amplitude
D) Frequency
  • 45. 45. What is the main factor that determines the amount of heat required to completely vaporize a liquid?
A) All of the above
B) Mass of the liquid
C) Specific latent heat of vaporization
D) Initial temperature of the liquid
  • 46. 46. During the process of condensation, a substance:
A) Absorbs heat from the surroundings.
B) Decreases in volume.
C) Does not change its temperature.
D) Releases heat to the surroundings.
  • 47. 47. Why does applying pressure to ice cause it to melt at a lower temperature?
A) Pressure has no effect on the melting point of ice.
B) Pressure increases the internal energy of the ice, making it easier to melt.
C) Pressure lowers the boiling point of water, which affects the melting point of ice.
D) Pressure disrupts the hydrogen bonding in ice, lowering its melting point.
  • 48. 48. Why does adding antifreeze to car coolant prevent the engine from freezing in cold weather?
A) Antifreeze absorbs heat from the engine, preventing it from freezing.
B) Antifreeze lowers the freezing point of the coolant mixture.
C) Antifreeze improves the thermal conductivity of the coolant.
D) Antifreeze increases the boiling point of the coolant mixture.
  • 49. 49. The specific latent heat of vaporization of a substance is:
A) Inversely proportional to its boiling point.
B) Directly proportional to its boiling point.
C) The relationship depends on the specific substance.
D) Not related to its boiling point.
  • 50. 50. What is the main principle behind how a radio antenna transmits and receives radio waves?
A) It amplifies radio waves to increase their strength.
B) It reflects radio waves to change their direction.
C) It converts electrical signals into radio waves and vice versa.
D) It filters radio waves to select specific frequencies.
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