SEE (Secondary Education Examination, Nepal) · Science and Technology
Physics and Chemistry
30 practice questions, each with the answer and an explanation.
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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 30 questions
- What is the SI unit of force?
- A force acts on a mass of 5 kg and gives it an acceleration of . What is the force?
- A force of 200 N acts on an area of . What is the pressure?
- How much work is done in lifting a 10 kg load through 5 m? Take .
- A machine does 600 J of work in 10 s. What is its power?
- What current flows through a resistor when 12 V is applied across it?
- Two resistors of and are joined in parallel. What is the combined resistance?
- A 100 W bulb is switched on for 5 hours. How much electrical energy does it use?
- What is the speed of light in a vacuum?
- 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?
- Which statement describes the image formed by a plane mirror?
- What happens to a ray of light that passes from air into glass at an angle?
- How much heat is needed to raise the temperature of 2 kg of water by C? The specific heat of water is .
- A car moves at 72 km/h. What is its speed in metres per second?
- A stone is dropped from rest and falls for 3 s. How far does it fall? Take .
- What is the chemical symbol of sodium?
- What is the pH of pure water at room temperature?
- What are the products of neutralising hydrochloric acid with sodium hydroxide?
- In the equation , what is the value of ?
- What is the electronic configuration of sodium, atomic number 11?
- What is the valency of chlorine, atomic number 17?
- To which group of the periodic table do the alkali metals belong?
- What is the molecular mass of calcium carbonate ? Use Ca = 40, C = 12 and O = 16.
- How many moles are in 36 g of water? Use H = 1 and O = 16.
- Which metal can displace copper from copper sulphate solution?
- Which two conditions are needed for iron to rust?
- Which gas turns lime water milky?
- How many hydrogen atoms does a molecule of ethane, , contain?
- Which two gases are the main components of LPG used for cooking?
- Which gases mainly cause acid rain?
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