General Science #9 Multiple Choice Questions

GENERAL SCIENCE #9

MULTIPLE CHOICE QUESTIONS

1. Temperature of a body is due to which of the following?

(a) Repulsive forces between the molecules

(b) Potential energy of the molecules

(c) Kinetic energy of the molecules

(d) Attractive forces between the molecules

Answer: (c)

2. Heat flows from one body to another because of their difference in which of the following?

(a) Thermal capacity

(b) Nature

(c) Temperature

(d) Specific heat

Answer: (c)

3. A man pushes a wall but fails to displace it. He does which of the following?

(a) Positive but small work

(b) Positive and maximum work

(c) Negative work

(d) No work at all

Answer: (d)

4. What is the SI unit of density?

(a) Pascal

(b) Watt

(c) kg/m³

(d) Joule

Answer: (c)

5. What is the SI unit of charge?

(a) Coulomb

(b) Hertz

(c) Candela

(d) Fathom

Answer: (a)

6. Newton or kilogram is unit of which of the following?

(a) Force

(b) Weight

(c) Frequency

(d) Charge

Answer: (b)

7. Diamond used in jewellery is which of the following?

(a) A metal

(b) A compound

(c) A mixture of compounds

(d) An element

Answer: (d)

8. How many types of atoms are present in carbon dioxide?

(a) Two types

(b) Four types

(c) One type

(d) Three types

Answer: (a)

9. Which of the following is not an electromagnetic radiation?

(a) X-rays

(b) Ultraviolet rays

(c) Cathode rays

(d) Infrared rays

Answer: (c)

10. α-particle is identical with which of the following?

(a) Deuterium nucleus

(b) Positron

(c) Protium nucleus

(d) Helium nucleus

Answer: (d)

11. Which is more massive among the following?

(a) Protons

(b) Mesons

(c) Electrons

(d) Neutrons

Answer: (d)

12. Which is the lightest particle among the following?

(a) Positron

(b) α-particles

(c) Proton

(d) Neutron

Answer: (a)

13. Bohr’s atomic model is based on which of the following?

(a) Theory of electrolytic dissociation

(b) Quantum theory

(c) Law of mass action

(d) Dalton’s atomic theory

Answer: (b)

14. Among which of the molecules are not carbohydrates?

(a) Glycogen

(b) Haemoglobin

(c) Lactose

(d) Cellulose

Answer: (b)

15. Saliva helps in the digestion of which of the following?

(a) Proteins

(b) Fibres

(c) Fats

(d) Starch

Answer: (d)

16. How many times does the heart beat in one minute?

(a) 50 times

(b) 60 times

(c) 72 times

(d) 90 times

Answer: (c)

17. Vitamin-A is found abundantly in which of the following?

(a) Maize grains

(b) Brinjal

(c) Carrot

(d) Onion bulb

Answer: (c)

18. Which gland secretes the most kinds of hormones?

(a) Hypothalamus

(b)Thyroid

(c) Pituitary

(d) Adrenal

Answer: (c)

19. What should be given to an athlete for instant energy?

(a) Vitamin

(b) Protein

(c) Carbohydrate

(d) None of the above

Answer: (c)

20. Maximum absorption of food takes place in which of the following?

(a) Large intestine

(b) Small intestine

(c) Oesophagus

(d) Stomach

Answer: (b)