TNPSC Group 2 / 2A - Mechanics properties of matter force motion and energy. Online Test (MCQ Quiz)

1. Which fundamental property of matter describes its resistance to changes in its state of motion?

A) Mass B) Volume C) Density D) Weight

2. Newton's First Law of Motion is also known as the Law of:

A) Momentum B) Acceleration C) Inertia D) Action and Reaction

3. What is the SI unit of force?

A) Joule B) Watt C) Newton D) Pascal

4. Which of the following is a vector quantity?

A) Speed B) Mass C) Distance D) Velocity

5. According to Newton's Second Law of Motion, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its:

A) Velocity B) Momentum C) Mass D) Energy

6. The product of mass and velocity of an object is called:

A) Force B) Momentum C) Impulse D) Work

7. Newton's Third Law of Motion states that for every action, there is an equal and:

A) Opposite reaction B) Inertial reaction C) Accelerated reaction D) Momentum reaction

8. What is the SI unit of energy?

A) Newton B) Watt C) Joule D) Pascal

9. The energy possessed by an object due to its motion is called:

A) Potential energy B) Chemical energy C) Kinetic energy D) Thermal energy

10. The energy possessed by an object due to its position or state is called:

A) Kinetic energy B) Mechanical energy C) Potential energy D) Electrical energy

11. Which of the following is a unit of power?

A) Joule B) Newton C) Watt D) Pascal

12. Power is defined as the rate of doing:

A) Work B) Force C) Momentum D) Energy

13. The conservation of energy states that energy can neither be created nor destroyed, but it can be:

A) Increased B) Decreased C) Transformed D) Stored

14. What is the property of a solid that allows it to resist deformation under stress?

A) Elasticity B) Plasticity C) Brittleness D) Ductility

15. The ability of a material to undergo permanent deformation without fracturing is known as:

A) Elasticity B) Plasticity C) Malleability D) Toughness

16. Which property allows a material to be drawn into a thin wire?

A) Brittleness B) Hardness C) Ductility D) Malleability

17. The ability of a material to be hammered or rolled into thin sheets is called:

A) Ductility B) Malleability C) Tensile strength D) Compressive strength

18. What is the unit of pressure?

A) Newton per square meter B) Joule per second C) Newton meter D) Kilogram per cubic meter

19. Pressure is defined as force acting per unit:

A) Volume B) Area C) Mass D) Time

20. Which of the following states of matter has the strongest intermolecular forces?

A) Gas B) Liquid C) Solid D) Plasma

21. In which state of matter are particles arranged in a random, close-packed structure and can slide past each other?

A) Solid B) Liquid C) Gas D) Plasma

22. Which state of matter has particles that are far apart and move randomly at high speeds?

A) Solid B) Liquid C) Gas D) Plasma

23. The process by which a solid changes directly into a gas without passing through the liquid state is called:

A) Evaporation B) Condensation C) Sublimation D) Melting

24. What is the term for the tendency of a fluid to resist flow?

A) Surface tension B) Capillarity C) Viscosity D) Density

25. The force exerted by a fluid per unit area is known as:

A) Stress B) Strain C) Pressure D) Tension

26. Which principle states that a body immersed in a fluid experiences an upward buoyant force equal to the weight of the fluid displaced by it?

A) Pascal's Principle B) Archimedes' Principle C) Bernoulli's Principle D) Hooke's Law

27. What is the unit of impulse?

A) Newton B) Joule C) Newton-second D) Watt

28. Impulse is equal to the change in:

A) Kinetic energy B) Potential energy C) Momentum D) Work

29. The work done on an object is equal to the change in its:

A) Velocity B) Momentum C) Kinetic energy D) Potential energy

30. What is the unit of angular velocity?

A) Hertz B) Radians per second C) Meters per second D) Degrees per second

31. Which type of motion involves an object moving along a curved path?

A) Linear motion B) Rotational motion C) Curvilinear motion D) Oscillatory motion

32. When an object moves in a circular path at a constant speed, its velocity is constantly changing due to the change in:

A) Magnitude B) Direction C) Acceleration D) Momentum

33. The force that acts towards the center of a circular path, causing an object to move in a circle, is called:

A) Centrifugal force B) Tangential force C) Centripetal force D) Gravitational force

34. What is the property of matter that causes it to occupy space and have mass?

A) Density B) Volume C) Inertia D) Weight

35. Which of the following is an example of potential energy?

A) A moving car B) A falling stone C) A stretched rubber band D) A spinning top

36. Which of the following is an example of kinetic energy?

A) Water stored in a dam B) A compressed spring C) A flying airplane D) A book on a shelf

37. What happens to the kinetic energy of an object if its mass is doubled and its velocity is kept the same?

A) It remains the same B) It doubles C) It quadruples D) It halves

38. What happens to the kinetic energy of an object if its velocity is doubled and its mass is kept the same?

A) It remains the same B) It doubles C) It quadruples D) It halves

39. The SI unit of momentum is:

A) kg m/s B) N s C) Joule D) kg m²/s²

40. Which law of motion describes the concept of conservation of momentum?

A) First Law B) Second Law C) Third Law D) All of the above

41. What is the unit of work in the CGS system?

A) Joule B) Erg C) Newton-meter D) Watt-second

42. Which property of matter describes its ability to resist compression?

A) Elasticity B) Compressibility C) Density D) Viscosity

43. The surface tension of a liquid is due to the cohesive forces between its:

A) Atoms B) Molecules C) Ions D) Electrons

44. What is the phenomenon where a liquid rises or falls in a narrow tube due to surface tension and adhesive forces?

A) Osmosis B) Diffusion C) Capillarity D) Evaporation

45. Which of the following is a consequence of Bernoulli's principle?

A) A ball thrown upwards slows down B) An airplane wing generates lift C) Water flows downhill D) A magnet attracts iron filings

46. When a body is subjected to a deforming force, the internal restoring force per unit area is called:

A) Pressure B) Stress C) Strain D) Tension

47. The fractional change in dimension of a body due to stress is called:

A) Stress B) Strain C) Elasticity D) Deformation

48. Hooke's Law states that within the elastic limit, stress is directly proportional to:

A) Force B) Strain C) Pressure D) Volume

49. What is the SI unit of angular momentum?

A) kg m²/s B) kg m/s C) N m D) Joule-second

50. The conservation of angular momentum states that if the net external torque on a system is zero, then its:

A) Linear momentum is conserved B) Kinetic energy is conserved C) Angular momentum is conserved D) Total energy is conserved

Mechanics properties of matter force motion and energy. - Online Test

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