P3

• What is the formula for density?

  Density = mass / volume
• What is specific latent heat?

  Energy required to change the state of 1 kg of a substance without changing its temperature
• What is the definition of pressure in the context of gas particles?

  Force exerted per unit of area
• What is the symbol for density?

  Greek letter rho (ρ)
• Why do gas particles create pressure when they collide with the walls of a container?

  They exert a force during collisions
• Why does the temperature of a substance remain constant during a state change?

  Energy is used to break or form bonds between particles
• What are the standard units for density in physics?

  Kilograms per meter cubed (kg/m³)
• What are the two main factors that determine the total pressure in a gas?

  Number of collisions and energy per collision
• What are the two types of specific latent heat?

  Specific latent heat of vaporization and fusion
• Why is density measured in kg/m³ in physics?

  Because mass is measured in kilograms and volume in meters cubed
• How does increasing the temperature of a gas affect its pressure?

  Pressure increases due to faster particle movement
• What does the specific latent heat of fusion refer to?

  Energy change when a substance changes between solid and liquid states
• What is the density of aluminum in kg/m³?

  2710 kg/m³
• What are the three states of matter?

  Solid, liquid, and gas
• What happens to the pressure of a gas if the concentration of particles increases?

  Pressure increases due to more collisions
• What does the specific latent heat of vaporization refer to?

  Energy change when a substance changes between liquid and gas states
• What is the density of aluminum in g/cm³?

  2.71 g/cm³
• What model is used to explain the behavior of particles in different states of matter?

  Particle theory or kinetic theory
• How does decreasing the volume of a gas container affect the pressure?

  Pressure increases due to more collisions
• What is the specific latent heat of fusion for water?

  334,000 J/kg
• How do you convert 1 g/cm³ to kg/m³?

  1 g/cm³ = 1000 kg/m³
• How are particles arranged in a solid?

  In a fixed position forming a regular lattice structure
• What happens to a flexible container like a balloon when the temperature or concentration of gas increases?

  Volume increases rather than pressure
• What is the specific latent heat of vaporization for water?

  2,260,000 J/kg
• What is the volume of 420 kg of aluminum if its density is 2710 kg/m³?

  0.155 m³
• Why do solids have a definite shape and volume?

  Because the particles are held in fixed positions by strong forces
• What is the relationship between volume and pressure in a gas?

  As volume decreases, pressure increases
• How much energy is required to boil 2.5 kg of water at 100°C?

  5,650,000 J
• How do you find the mass of a solid experimentally?

  Place the solid on a balance and measure the mass
• What happens to the particles in a solid when it is heated?

  They gain more energy and vibrate more
• Why does a flexible container like a balloon expand when gas particles collide more frequently?

  Collisions cause the container to expand
• What happens to the temperature of water when it is boiling?

  It remains constant until all water has turned into vapor
• How do you find the volume of a regular solid?

  Measure length, width, and height, then multiply them
• What is the melting point?

  The temperature at which a solid melts into a liquid
• What happens to the kinetic energy of gas particles when the temperature increases?

  Kinetic energy increases
• What happens to the temperature of ice when it is melting?

  It remains constant until all ice has turned into liquid
• How are particles arranged in a liquid?

  Randomly arranged with weak forces of attraction
• How do you find the volume of an irregular solid?

  Use a eureka can and measuring cylinder
• Why does a higher concentration of gas particles lead to more collisions with the container walls?

  More particles are present to collide
• What is the equation for calculating energy using specific latent heat?

  $E =$$m \times L$