An aeroplane is moving horizontally through still air at a uniform speed. It is observed that when the speed of the plane is increased, its height above...

An aeroplane is moving horizontally through still air at a uniform
speed. It is observed that when the speed of the plane is increased, its
height above the ground increases. State the reason for this observation.

---

Increase in the speed of the plane decreases the pressure of air above it while
the pressure below it remains high. This leads to a resultant upward force.

---

Kavungya answered the question on May 7, 2019 at 06:36

Exams With Marking Schemes

• Grade 1
• Grade 2
• Grade 3
• Grade 4
• Grade 5
• Grade 6
• Grade 7
• Grade 8
• Grade 9
• PP1
• PP2
• Playgroup
• Form 1
• Form 2
• Form 3
• Form 4

Related Questions

---

• Give the molecular explanation of Charles’ law. (Solved)
  

  Give the molecular explanation of Charles’ law.

  Date posted: April 24, 2019 .    Answers (1)

• Give the molecular explanation of Boyle’s law. (Solved)
  

  Give the molecular explanation of Boyle’s law.

  Date posted: April 24, 2019 .    Answers (1)

• Describe an experiment that can be used to verify the Boyle’s law (Solved)
  

  Describe an experiment that can be used to verify the Boyle’s law

  Date posted: April 24, 2019 .    Answers (1)

• Using Young’s double slit experiment demonstrate the interference of light waves. (Solved)
  

  Using Young’s double slit experiment demonstrate the interference of light waves.

  Date posted: April 24, 2019 .    Answers (1)

• Discuss different types of interference of waves. (Solved)
  

  Discuss different types of interference of waves.

  Date posted: April 24, 2019 .    Answers (1)

• Describe an experiment that can be used to demonstrate Effects of reduced pressure on boiling point. (Solved)
  

  Describe an experiment that can be used to demonstrate Effects of reduced pressure on boiling point.

  Date posted: April 24, 2019 .    Answers (1)

• Describe an experiment that can be used to demonstrate Effects of increased pressure on boiling point. (Solved)
  

  Describe an experiment that can be used to demonstrate Effects of increased pressure on boiling point.

  Date posted: April 24, 2019 .    Answers (1)

• Describe an experiment that can be used to determine the specific latent heat of vaporization of water using mixture method. (Solved)
  

  Describe an experiment that can be used to determine the specific latent heat of vaporization of water using mixture method.

  Date posted: April 24, 2019 .    Answers (1)

• Explain how specific latent heat of fusion can be determined using mixture method. (Solved)
  

  Explain how specific latent heat of fusion can be determined using mixture method.

  Date posted: April 24, 2019 .    Answers (1)

• Using a graph discuss the change of state when ice is heated from -2⁰C until it boils. (Solved)
  

  Using a graph discuss the change of state when ice is heated from -2⁰C until it boils.

  Date posted: April 24, 2019 .    Answers (1)

• Describe an experiment to show how electrical method can be used to determine specific heat capacity. (Solved)
  

  Describe an experiment to show how electrical method can be used to determine specific heat capacity.

  Date posted: April 24, 2019 .    Answers (1)

• Describe an experiment to determine the specific heat capacity by the method of mixtures. (Solved)
  

  Describe an experiment to determine the specific heat capacity by the method of mixtures.

  Date posted: April 24, 2019 .    Answers (1)

• The figure below shows five resistors and 5.0V supply. (Solved)
  

  The figure below shows five resistors and 5.0V supply.
  
  Calculate:
  a) The effective resistance of the circuit.
  b) The total circuit current.

  Date posted: April 24, 2019 .    Answers (1)

• Three resistors are connected as shown below: (Solved)
  

  Three resistors are connected as shown below:
  
  Calculate:
  a) The total resistance of the circuit.
  b) The current through each resistor.
  

  Date posted: April 24, 2019 .    Answers (1)

• The figure below shows 3 resistors. (Solved)
  

  The figure below shows 3 resistors.
  
  Calculate:
  a) The effective resistance of the circuit.
  b) The total current in the circuit.
  c) The voltage drop across each resistor.

  Date posted: April 24, 2019 .    Answers (1)

• State and explain three main groups of resistors. (Solved)
  

  State and explain three main groups of resistors.

  Date posted: April 24, 2019 .    Answers (1)

• Describe an experiment that can be used to investigate Ohm’s law: (Solved)
  

  Describe an experiment that can be used to investigate Ohm’s law:

  Date posted: April 24, 2019 .    Answers (1)

• In the figure below, calculate the energy stored in the combined capacitor. (Solved)
  

  In the figure below, calculate the energy stored in the combined capacitor.
  

  Date posted: April 24, 2019 .    Answers (1)

• The figure below shows two capacitors connected to a 12V supply (Solved)
  

  The figure below shows two capacitors connected to a 12V supply
  
  Determine: a) the effective capacitance of the circuit
  b) Charge on each capacitor
  c) Energy stored in the combination

  Date posted: April 24, 2019 .    Answers (1)

• Explain how you can determine the combined capacitance of Capacitors arranged in parallel. (Solved)
  

  Explain how you can determine the combined capacitance of Capacitors arranged in parallel.

  Date posted: April 24, 2019 .    Answers (1)