1 Which energy source is derived from the heat of the Earth? A Solar energy B Wind energy C Geothermal energy D Tidal energy
2 In a hydroelectric power plant, the energy of flowing water is converted into: A Chemical energy B Nuclear energy C Electrical energy D Solar energy
3 A thermometer has a small bulb and a very narrow capillary bore. What property of the thermometer does this design mainly affect? A Range B Sensitivity C Linearity D Durability
4 Which of Newton's equations of motion is v = u + at? A First equation B Second equation C Third equation D Fourth equation
5 Terminal velocity is reached when: A The object stops moving B The upward force equals the downward force C The object accelerates uniformly D Friction becomes zero
6 Which branch of physics deals with heat and temperature? A Mechanics B Optics C Thermodynamics D Acoustics
7 Which method is used to demagnetise a permanent magnet by heating and hammering? A Stroking with another magnet B Passing direct current through a coil C Heating the magnet strongly and then hammering it D Placing it near a weak magnet
8 According to the law of conservation of energy, energy can be: A Created but not destroyed B Destroyed but not created C Neither created nor destroyed D Created and destroyed
9 A body moving along a circular path has: A Translational motion B Rotational motion C Circular motion D Vibrational motion
11 A stone is dropped from a height. Its motion is an example of ____. A Uniform motion B Free fall C Circular motion D Vibrational motion
12 Which of the following is used to measure mass accurately in a laboratory? A Spring balance B Electronic balance C Barometer D Thermometer
13 Magnetic field lines outside a magnet run from: A South pole to North pole B North pole to South pole C East to West D West to East
14 If the velocity of an object is doubled, its kinetic energy becomes: A Half B Double C Four times D Unchanged
15 A couple consists of two forces which are: A Equal in magnitude, same direction, different lines of action B Equal in magnitude, opposite direction, same line of action C Equal in magnitude, opposite direction, different lines of action D Unequal in magnitude, opposite direction, different lines of action
16 Why does diffusion occur faster in gases than in liquids? A Gas particles are larger B Gas particles move faster and have more space between them C Liquids have no particles D Gases have lower kinetic energy
17 A force of 10 N is applied at a distance of 0.5 m from the pivot. What is the moment of the force? A 2 N m B 5 N m C 10 N m D 20 N m
18 Which of the following is a difference between mass and weight? A Mass is a vector, weight is a scalar B Mass changes with location, weight remains constant C Mass is measured in kilograms, weight in newtons D Mass depends on gravity, weight does not
19 Which of the following is a scientific law? A Newton's law of gravitation B Theory of evolution C Big Bang theory D Cell theory
20 According to the domain theory, what happens when a magnetic material is magnetised? A Domains align in the same direction B Domains become randomly oriented C Domains disappear completely D Domains turn into non-magnetic regions
21 Impulse is equal to: A Change in momentum B Rate of change of momentum C Product of mass and acceleration D Product of force and distance
22 The law of conservation of energy states that energy can neither be created nor destroyed. This means total energy of a closed system: A Increases with time B Decreases with time C Remains constant D Becomes zero
23 In a pendulum, the energy transformation at the mean position is: A Potential energy to kinetic energy B Kinetic energy to potential energy C Kinetic energy to heat energy D Potential energy to electrical energy
24 What causes gas pressure in a container according to the kinetic molecular theory? A The weight of the gas molecules B Collisions of gas molecules with the walls of the container C Attraction between gas molecules D The volume of the gas molecules