SEE (Secondary Education Examination, Nepal) · Science and Technology

Physics and Chemistry

30 practice questions, each with the answer and an explanation.

Practise Physics and Chemistry now

Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 30 questions

  1. What is the SI unit of force?
  2. A force acts on a mass of 5 kg and gives it an acceleration of . What is the force?
  3. A force of 200 N acts on an area of . What is the pressure?
  4. How much work is done in lifting a 10 kg load through 5 m? Take .
  5. A machine does 600 J of work in 10 s. What is its power?
  6. What current flows through a resistor when 12 V is applied across it?
  7. Two resistors of and are joined in parallel. What is the combined resistance?
  8. A 100 W bulb is switched on for 5 hours. How much electrical energy does it use?
  9. What is the speed of light in a vacuum?
  10. A ray of light falls on a plane mirror with an angle of incidence of . What is the angle between the incident ray and the reflected ray?
  11. Which statement describes the image formed by a plane mirror?
  12. What happens to a ray of light that passes from air into glass at an angle?
  13. How much heat is needed to raise the temperature of 2 kg of water by C? The specific heat of water is .
  14. A car moves at 72 km/h. What is its speed in metres per second?
  15. A stone is dropped from rest and falls for 3 s. How far does it fall? Take .
  16. What is the chemical symbol of sodium?
  17. What is the pH of pure water at room temperature?
  18. What are the products of neutralising hydrochloric acid with sodium hydroxide?
  19. In the equation , what is the value of ?
  20. What is the electronic configuration of sodium, atomic number 11?
  21. What is the valency of chlorine, atomic number 17?
  22. To which group of the periodic table do the alkali metals belong?
  23. What is the molecular mass of calcium carbonate ? Use Ca = 40, C = 12 and O = 16.
  24. How many moles are in 36 g of water? Use H = 1 and O = 16.
  25. Which metal can displace copper from copper sulphate solution?
  26. Which two conditions are needed for iron to rust?
  27. Which gas turns lime water milky?
  28. How many hydrogen atoms does a molecule of ethane, , contain?
  29. Which two gases are the main components of LPG used for cooking?
  30. Which gases mainly cause acid rain?

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