Which of the following best describes what happens to the particles in a substance when the temperature increases?

• The particles move slower and get closer together.

• The particles move faster and spread apart.

• The particles stop moving completely.

• The particles move at the same speed but change direction.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When pressure is applied to a gas in a closed container, (a)   happens to the gas particles.

• They move faster and spread out.
• They move slower and get closer together
• They stop moving.
• They move at the same speed but with no change

Tags

NGSS.MS-PS1-4

Match each scenario with the concept it best illustrates.

• Illustrates the effect of temperature on phase change from liquid to solid.

• Heating a pot of water on a stove.

• Illustrates the effect of pressure on particle motion.

• Freezing water in a refrigerator.

• Illustrates the effect of temperature on phase change from solid to liquid.

• Melting ice in a warm room.

• Illustrates the effect of temperature on particle motion.

• Compressing air in a bicycle pump.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Match each description of particle behavior with the correct effect of increasing the temperature of a liquid.

• Heating a liquid until it may evaporate.

• Particles stop moving and become a solid.

• Cooling a liquid until it freezes.

• Particles move at the same speed but change direction.

• Lowering temperature to absolute zero.

• Particles move slower and form a solid.

• Changing only the direction of particle movement, not speed.

• Particles move faster and may turn into a gas.

Tags

NGSS.MS-PS1-4

In a closed system, increasing temperature (a)   pressure.

• Increasing temperature decreases 
• Increasing temperature increases
• Temperature and pressure are unrelated
• Decreasing temperature increases 

Tags

NGSS.MS-PS1-4

A sealed container of gas is heated. What is the most likely outcome?

• The gas particles slow down.

• The gas particles speed up and pressure increases.

• The gas particles stop moving.

• The gas particles remain unchanged.

Tags

NGSS.MS-PS1-4

Which of the following best explains why a balloon expands when heated?

• The particles inside the balloon slow down.

• The particles inside the balloon speed up and push outward.

• The particles inside the balloon stop moving.

• The particles inside the balloon move at the same speed but change direction.

Tags

NGSS.MS-PS1-4

What happens to the spatial arrangement of particles in a solid when it is heated to become a liquid?

• Particles become more tightly packed.

• Particles spread out and move more freely.

• Particles stop moving.

• Particles remain in a fixed position.

Tags

NGSS.MS-PS1-4

Which of the following best describes the effect of pressure on the boiling point of a liquid?

• Increasing pressure decreases the boiling point.

• Increasing pressure increases the boiling point.

• Pressure has no effect on the boiling point.

• Decreasing pressure increases the boiling point.

What happens to the volume of a gas if its temperature increases while pressure remains constant?

• The volume increases.

• The volume stays the same.

• The volume decreases.

• The volume becomes zero.