HorthooZ – Kerala GK, PSC Questions & Onam Quiz

Q1 Multiple Choice Question

How does an object's mass differ from its weight when taken from the Earth to the Moon?

A Mass decreases while weight increases B Mass remains constant, but weight decreases (due to lower gravity) C Both mass and weight become zero D Both mass and weight remain completely constant

Q2 Multiple Choice Question

Under what condition does a person inside a lift experience apparent weightlessness?

A When the lift moves downward slowly B When the lift falls freely under gravity ($a = g$) C When the lift is stationary D When the lift moves upward with constant speed

Q3 Multiple Choice Question

Kepler's Third Law of Planetary Motion (Harmonic Law) states that the square of the time period of a planet is proportional to the cube of its:

A Orbital speed B Mass C Semi-major axis of its elliptical orbit ($T^2 \propto r^3$) D Surface temperature

Q4 Multiple Choice Question

If two trains are moving in opposite directions with velocities $v_1$ and $v_2$, what is their relative velocity with respect to each other?

A Difference of their velocities ($v_1 - v_2$) B Product of velocities C Zero D Sum of their velocities ($v_1 + v_2$)

Q5 Multiple Choice Question

Which of the following represents the first equation of motion for uniformly accelerated rectilinear motion?

A F = ma B s = ut + (1/2)at^2 C v = u + at D v^2 = u^2 + 2as

Q6 Multiple Choice Question

The law of conservation of momentum states that in the absence of an external force, the total momentum of a system of objects is:

A Proportional to velocity B Constant (conserved) C Increasing continuously D Zero

Q7 Multiple Choice Question

According to Bernoulli's Principle in fluid dynamics, an increase in the speed of a fluid occurs simultaneously with what condition?

A An increase in fluid density and temperature simultaneously B A complete cessation of viscous forces C An increase in both dynamic and static pressure D A decrease in static pressure or a decrease in the fluid's potential energy.

Q8 Multiple Choice Question

Why must fictitious or pseudo forces (such as centrifugal force) be introduced when applying Newton's laws of motion in a non-inertial reference frame?

A Because mass becomes negative in rotating systems B Because frictional forces disappear in accelerated frames C Because gravity ceases to exist outside Earth's atmosphere D Because non-inertial frames are accelerating, and Newton's laws in their standard form are only valid in inertial (non-accelerating) reference frames.

Q9 Multiple Choice Question

According to Archimedes' Principle, when a body is partially or fully immersed in a fluid, it experiences an upward buoyant force equal to:

A The volume of the container B The surface tension of the liquid C The total weight of the vessel D The weight of the fluid displaced by the body

Q10 Multiple Choice Question

Why is angular momentum conserved for a planet orbiting the Sun under gravitational attraction?

A Because gravitational force is a central force acting along the line joining the Sun and the planet, producing zero torque ($ au = r imes F = 0$). B Because the planet's mass increases as it approaches perihelion C Because the orbital speed remains strictly constant throughout the orbit D Because kinetic energy is completely converted to potential energy

Q11 Multiple Choice Question

In rotational mechanics, what physical quantity is defined as the cross product of position vector and linear momentum ($ec{L} = ec{r} imes ec{p}$)?

A Angular momentum B Torque C Linear acceleration D Kinetic energy

Q12 Multiple Choice Question

At what angle of projection with the horizontal does a projectile achieve the maximum horizontal range (neglecting air resistance)?

A 30 degrees B 90 degrees C 60 degrees D 45 degrees

Q13 Multiple Choice Question

In elasticity, which modulus of elasticity characterizes a material's resistance to uniform compression (change in volume under hydraulic pressure)?

A Poisson's ratio B Shear modulus ($G$) C Young's modulus ($Y$) D Bulk modulus ($B$)

Q14 Multiple Choice Question

In Simple Harmonic Motion (SHM), the acceleration of a particle is always directly proportional to its:

A Mass B Velocity C Time squared D Displacement from the mean position and directed towards it ($a = -\omega^2 x$)

Q15 Multiple Choice Question

What is the orbital period of a geostationary satellite revolving around the Earth?

A 90 minutes B 365 days C 12 hours D 24 hours

Q16 Multiple Choice Question

What is the SI fundamental unit for measuring luminous intensity?

A Ampere (A) B Kelvin (K) C Mole (mol) D Candela (cd)

Q17 Multiple Choice Question

The propulsion of a rocket in space is an application of which fundamental law of physics?

A Law of Conservation of Energy B Newton's Third Law of Motion C Archimedes' Principle D Newton's First Law of Motion

Q18 Multiple Choice Question

When a small spherical body falls through a viscous liquid, it attains a constant maximum velocity known as:

A Terminal velocity B Orbital velocity C RMS velocity D Escape velocity

Q19 Multiple Choice Question

What phenomenon is responsible for rain droplets acquiring a spherical shape and the rise of sap in plant stems?

A Viscosity and Buoyancy B Atmospheric pressure and Friction C Surface tension and Capillarity (Capillary action) D Inertia and Momentum

Q20 Multiple Choice Question

In a rotating reference frame, which fictitious force is responsible for deflecting moving objects to the right in the Northern Hemisphere?

A Centrifugal force B Magnetic Lorentz force C Coriolis force D Gravitational tidal force

Units, Motion & Laws of Motion

How does an object's mass differ from its weight when taken from the Earth to the Moon?

Under what condition does a person inside a lift experience apparent weightlessness?

Kepler's Third Law of Planetary Motion (Harmonic Law) states that the square of the time period of a planet is proportional to the cube of its:

If two trains are moving in opposite directions with velocities $v_1$ and $v_2$, what is their relative velocity with respect to each other?

Which of the following represents the first equation of motion for uniformly accelerated rectilinear motion?

The law of conservation of momentum states that in the absence of an external force, the total momentum of a system of objects is:

According to Bernoulli's Principle in fluid dynamics, an increase in the speed of a fluid occurs simultaneously with what condition?

Why must fictitious or pseudo forces (such as centrifugal force) be introduced when applying Newton's laws of motion in a non-inertial reference frame?

According to Archimedes' Principle, when a body is partially or fully immersed in a fluid, it experiences an upward buoyant force equal to:

Why is angular momentum conserved for a planet orbiting the Sun under gravitational attraction?

In rotational mechanics, what physical quantity is defined as the cross product of position vector and linear momentum ($ec{L} = ec{r} imes ec{p}$)?

At what angle of projection with the horizontal does a projectile achieve the maximum horizontal range (neglecting air resistance)?

In elasticity, which modulus of elasticity characterizes a material's resistance to uniform compression (change in volume under hydraulic pressure)?

In Simple Harmonic Motion (SHM), the acceleration of a particle is always directly proportional to its:

What is the orbital period of a geostationary satellite revolving around the Earth?

What is the SI fundamental unit for measuring luminous intensity?

The propulsion of a rocket in space is an application of which fundamental law of physics?

When a small spherical body falls through a viscous liquid, it attains a constant maximum velocity known as:

What phenomenon is responsible for rain droplets acquiring a spherical shape and the rise of sap in plant stems?

In a rotating reference frame, which fictitious force is responsible for deflecting moving objects to the right in the Northern Hemisphere?

Practice Completed!

Learn Better with the HorthooZ App

Units, Motion & Laws of Motion

How does an object's mass differ from its weight when taken from the Earth to the Moon?

Under what condition does a person inside a lift experience apparent weightlessness?

Kepler's Third Law of Planetary Motion (Harmonic Law) states that the square of the time period of a planet is proportional to the cube of its:

If two trains are moving in opposite directions with velocities $v_1$ and $v_2$, what is their relative velocity with respect to each other?

Which of the following represents the first equation of motion for uniformly accelerated rectilinear motion?

The law of conservation of momentum states that in the absence of an external force, the total momentum of a system of objects is:

According to Bernoulli's Principle in fluid dynamics, an increase in the speed of a fluid occurs simultaneously with what condition?

Why must fictitious or pseudo forces (such as centrifugal force) be introduced when applying Newton's laws of motion in a non-inertial reference frame?

According to Archimedes' Principle, when a body is partially or fully immersed in a fluid, it experiences an upward buoyant force equal to:

Why is angular momentum conserved for a planet orbiting the Sun under gravitational attraction?

In rotational mechanics, what physical quantity is defined as the cross product of position vector and linear momentum ($ ec{L} = ec{r} imes ec{p}$)?

At what angle of projection with the horizontal does a projectile achieve the maximum horizontal range (neglecting air resistance)?

In elasticity, which modulus of elasticity characterizes a material's resistance to uniform compression (change in volume under hydraulic pressure)?

In Simple Harmonic Motion (SHM), the acceleration of a particle is always directly proportional to its:

What is the orbital period of a geostationary satellite revolving around the Earth?

What is the SI fundamental unit for measuring luminous intensity?

The propulsion of a rocket in space is an application of which fundamental law of physics?

When a small spherical body falls through a viscous liquid, it attains a constant maximum velocity known as:

What phenomenon is responsible for rain droplets acquiring a spherical shape and the rise of sap in plant stems?

In a rotating reference frame, which fictitious force is responsible for deflecting moving objects to the right in the Northern Hemisphere?

Practice Completed!

Learn Better with the HorthooZ App

In rotational mechanics, what physical quantity is defined as the cross product of position vector and linear momentum ($ec{L} = ec{r} imes ec{p}$)?