Kinetic Particle Theory

Describe the process of melting in terms of particle movement.

• Melting is the process where solid particles gain energy, vibrate more, and transition into a liquid state.

• Melting is the process where gas particles condense into a liquid state.

• During melting, particles move closer together and form a solid.

• Melting occurs when liquid particles lose energy and solidify.

Tags

NGSS.MS-PS1-4

What happens to the particles in a gas when it is cooled?

• The particles in a gas move faster and spread apart.

• The particles in a gas move slower and come closer together.

• The particles in a gas remain unchanged in speed and distance.

• The particles in a gas become solid and stop moving.

Tags

NGSS.MS-PS1-4

How do particles behave in a solid compared to a liquid?

• In a solid, particles move freely like in a gas; in a liquid, they are fixed in place.

• In a solid, particles flow easily; in a liquid, they vibrate in fixed positions.

• In a solid, particles vibrate in fixed positions; in a liquid, they move freely and can flow.

• In a solid, particles are in constant motion; in a liquid, they are completely still.

How does increasing temperature affect the motion of particles?

• Particles become stationary with increased temperature.

• Increasing temperature causes particles to move faster.

• Temperature has no effect on particle motion.

• Increasing temperature causes particles to move slower.

Tags

NGSS.MS-PS1-4

How does kinetic energy relate to the temperature of a substance?

• Kinetic energy remains constant regardless of temperature.

• Kinetic energy is unrelated to temperature.

• Kinetic energy increases with temperature.

• Kinetic energy decreases with temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is the relationship between temperature and kinetic energy?

• Kinetic energy decreases as temperature increases.

• Temperature has no effect on kinetic energy.

• Temperature is directly proportional to kinetic energy.

• Temperature is inversely proportional to kinetic energy.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which container will have a lower pressure?

• left

• right

• they both have the same pressure

What causes pressure?

• The thickness of walls of the container

• The vacuum in the container

• The collisions of the particles with the walls of the container

• Atmospheric pressure acting on the outside walls

Tags

NGSS.MS-PS1-4

Which of the following is a correct description for solids?

• closely arranged and in fixed positions

• closely arranged and vibrate in fixed positions

• closely arranged and can move around

Which statement about the molecules in the gas carbon dioxide is correct?

• The molecules are close together.

• The molecules are diatomic.

• The molecules move randomly.

• The molecules all move with the same speed.

Tags

NGSS.MS-PS1-4