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PHYSICS MCQs

Total Questions : 3767 | Page 377 of 377 pages
Question 3761. What happens when an object accelerates?
  1.    Its speed or direction changes
  2.    Only its speed changes
  3.    Only its direction changes
  4.    Its speed and direction do not change
 Discuss Question
Answer: Option A. -> Its speed or direction changes
Question 3762. What does pitch depend on?
  1.    amplitude 
  2.    frequency
  3.    intensity 
  4.    volume of sound
 Discuss Question
Answer: Option B. -> frequency
Question 3763. A disturbance that travels through a medium as a longitudinal wave
  1.    sound
  2.    wavelength
  3.    pitch
  4.    frequency
 Discuss Question
Answer: Option A. -> sound
Question 3764. What is the name of the process of heat transfer using electromagnetic waves?
  1.    conduction
  2.    convection
  3.    evaporation
  4.    radiation
 Discuss Question
Answer: Option D. -> radiation
Question 3765. What are the SI units for power?
  1.    Watts
  2.    Ohms
  3.    Volts
  4.    Amperes
 Discuss Question
Answer: Option A. -> Watts
Question 3766. What are the SI units for resistance?
  1.    Watts
  2.    Ohms
  3.    Volts
  4.    Amperes
 Discuss Question
Answer: Option B. -> Ohms
Question 3767. Bubbles of air rise up through liquids due to
  1.    Surface tension and adherence
  2.    Viscosity and buoyancy
  3.    Air current over the liquid and buoyancy
  4.    Up thrust and surface tension
 Discuss Question
Answer: Option B. -> Viscosity and buoyancy

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