Sets
General Science Set 3
30 questions 1. A car moving at 20 m s⁻¹ is brought to rest with a constant acceleration of −5 m s⁻². The distance travelled before stopping is:
2. The main thinking part of the brain is the:
3. The most common type of rechargeable battery found in almost all devices that use batteries is the:
4. Mishraloha was the name given to a mixture of:
5. Masses of bacterial cells together with food particles that stick to the teeth form:
6. A temperature of 50 °C is equal to:
7. In the balanced equation 3Fe + 4H₂O → Fe₃O₄ + 4H₂, the coefficient of H₂ is:
8. Consider the following pairs:
(I) Amoeboid protozoans – Amoeba
(II) Flagellated protozoans – Paramoecium
(III) Sporozoans – Plasmodium
Which of the pairs given above is/are correctly matched?
9. Planets discovered revolving around other stars in our galaxy are called:
10. Which pair of nutrients in soil is essential for plant growth?
11. Erosion of rocks by flowing water and wind is a:
12. A pressure equivalent of 1 mm of mercury is called:
13. The main root with small side roots arising from it is called a:
14. The molecular mass of ammonia (N = 14 u, H = 1 u) is:
15. A car starts from rest and its velocity increases uniformly to 12 m s⁻¹ in 6 s. The displacement in these 6 s is:
16. In terrestrial plants, the water used in photosynthesis is taken up from the soil by the:
17. One kilowatt hour is equal to:
18. When a mixture of acetone and water is heated, the liquid that vaporises first is:
19. Edible mushrooms are a good source of:
20. The potential energy of a particle in SHM at displacement x is: