Correct option is D
Correct Answer: (d) Motion of particles of matter is unaffected by any external forces
Explanation:
The motion of particles of matter is affected by external forces such as temperature, pressure, and external fields. When heat is supplied, particles gain kinetic energy and move faster. Similarly, external pressure can compress matter, reducing the space between particles. Forces like gravity and intermolecular forces also influence particle movement.
Information Booster:
Particles of matter have space between them, which allows substances to be compressible and expandable (e.g., gases have the most space).
Particles attract each other due to intermolecular forces, which are strongest in solids, weaker in liquids, and weakest in gases.
Particles are in constant motion – this is observed in diffusion, Brownian motion, and thermal expansion.
Heating increases particle movement, making them move faster due to higher kinetic energy.
Cooling slows down the motion of particles, decreasing energy and increasing intermolecular attraction.
External pressure can change the state of matter by compressing or expanding particles.
Gravity influences the motion of particles, especially in liquids and gases, causing convection currents.
Additional Information:
Particles of matter have space between them, which allows substances to be compressed or expanded based on external conditions.
Intermolecular forces exist between particles, influencing their arrangement and state (solid, liquid, or gas).
Brownian motion proves that particles are always in motion, even in stationary substances.
Heat increases particle motion, causing expansion, while cooling slows down movement, leading to contraction.
External forces such as pressure and temperature affect particle behavior, influencing changes in state.
Explanation:
The motion of particles of matter is affected by external forces such as temperature, pressure, and external fields. When heat is supplied, particles gain kinetic energy and move faster. Similarly, external pressure can compress matter, reducing the space between particles. Forces like gravity and intermolecular forces also influence particle movement.
Information Booster:
Particles of matter have space between them, which allows substances to be compressible and expandable (e.g., gases have the most space).
Particles attract each other due to intermolecular forces, which are strongest in solids, weaker in liquids, and weakest in gases.
Particles are in constant motion – this is observed in diffusion, Brownian motion, and thermal expansion.
Heating increases particle movement, making them move faster due to higher kinetic energy.
Cooling slows down the motion of particles, decreasing energy and increasing intermolecular attraction.
External pressure can change the state of matter by compressing or expanding particles.
Gravity influences the motion of particles, especially in liquids and gases, causing convection currents.
Additional Information:
Particles of matter have space between them, which allows substances to be compressed or expanded based on external conditions.
Intermolecular forces exist between particles, influencing their arrangement and state (solid, liquid, or gas).
Brownian motion proves that particles are always in motion, even in stationary substances.
Heat increases particle motion, causing expansion, while cooling slows down movement, leading to contraction.
External forces such as pressure and temperature affect particle behavior, influencing changes in state.
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