Physics (IGCSE) Revision

82 Questions | Total Attempts: 866

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Physics (IGCSE) Revision

Based On IGCSE Physics course


Questions and Answers
  • 1. 
    What is the equation for work done: so WORK DONE=
  • 2. 
    (use'^' for power of)Complete the kinematic equation : v^2=
  • 3. 
    Which of the following is a feature of sound waves? 1: longitudinal waves  2: transverse waves 3: can travel through a vaccum 4: cannot go through solids or liquids. 5: can go through a gas.  A: 1,3,4,5 B:2,4,5 C:4 only D:1 only E: 1,3,5
  • 4. 
    Pressure in liquids is given by : (only use symbols)
  • 5. 
    3000 Gigawatts = __________ watts
    • A. 

      3 x 10^-12

    • B. 

      3 x 10^9

    • C. 

      3 x 10^12

    • D. 

      3 x 10^-9

  • 6. 
    Acceleration = velocity / time
    • A. 

      True

    • B. 

      False

  • 7. 
    An object moving in the orbit of earth, travels at constant velocity. Which law from the Newton's laws of motion correctly describes this.
    • A. 

      First Law

    • B. 

      Second Law

    • C. 

      Third Law

    • D. 

      None

  • 8. 
    Force = ___________ x ________________
    • A. 

      F=mc^2

    • B. 

      F= v/a

    • C. 

      F=ma

    • D. 

      F=work done/speed

  • 9. 
    Mass of an object on Earth is 120kg. Calculate the weight of the person on the moon.[g(moon)= 1.6N/kg]. Remmember to use the correct units.
  • 10. 
    Newton's third law describes that:
    • A. 

      Force is proportional to mass and acceleration

    • B. 

      Speed of an object is given by the distance divided by time

    • C. 

      Weight is equal to mass times the force of gravity

    • D. 

      Every action has a n equal but opposite reaction

  • 11. 
    Speed is a : (tick two boxes)
    • A. 

      Scalar

    • B. 

      Vector

    • C. 

      Has no direction

    • D. 

      Has no magnitude

  • 12. 
    Momentum = mass x _____________
    • A. 

      Acceleration

    • B. 

      Velocity

    • C. 

      Displacement

    • D. 

      Force

  • 13. 
    Torque= force x perpendicular distance
    • A. 

      True

    • B. 

      False

  • 14. 
    Principle of moments says describes that: the sum of the _________a_________  moments about any point is equal to the sum of ________b_______ moments abouth that point.
    • A. 

      A: clockwise b: anticlockwise

    • B. 

      A: forces b: fields

    • C. 

      A: current b: time

    • D. 

      A: upwards b:downwards

    • E. 

      A: downwards b: upwards

  • 15. 
    Type in the Hooke's Law: 
  • 16. 
    A barometer and a manometer use:
    • A. 

      Mercury and chromium

    • B. 

      Mercury only

    • C. 

      Boiling water

    • D. 

      Cold water

  • 17. 
    Law of Floatation: If an object is floating freely, the weight of fluid it displaces is equal to its ________a______. And if a material floats, its _____b______ must be equal to or less than that of the fluid supporting it.
    • A. 

      A: upthrust b: fluid displaced

    • B. 

      A: fluid displaced b: upthrust

    • C. 

      A: density b: weight

    • D. 

      A: weight b: density

  • 18. 
    A car moving at constant velocity has which of the following forces acting on it?
    • A. 

      Thrust

    • B. 

      Gravity

    • C. 

      Air resistance

    • D. 

      Momentum

  • 19. 
    Efficieny = 
    • A. 

      Work done / energy input

    • B. 

      Force x speed

    • C. 

      Work done / time taken

    • D. 

      Power input / power output

  • 20. 
    Power = 
    • A. 

      Energy used / time

    • B. 

      Work done / time taken

    • C. 

      Efficiency / energy output

    • D. 

      Force / time

  • 21. 
    A boat is travelling at 35 km/hr. Froce used to push the boat in the water in 350N. Calculate the useful power output of the boat.
    • A. 

      1050W

    • B. 

      10500W

    • C. 

      10W

    • D. 

      0.1W

  • 22. 
    Random motion of large visible particels, caused by smaller invisible ones is called:
    • A. 

      Diffusion

    • B. 

      Condensation

    • C. 

      Brownian motion

    • D. 

      The Butterfly effect

  • 23. 
    Describe how a thermistor thermometer works.
  • 24. 
    Convert: (i) 0 *C to Kelvin (ii) 341 K to *Celcius
    • A. 

      (i)273K (ii)68*C

    • B. 

      (i)-273K (ii)614*C

    • C. 

      (i)0 K (ii)-341*C

    • D. 

      (i)271 K (ii)341*C

  • 25. 
    Define conduction