Molecular Motion

Particles in this state of matter slide past each other and take the shape of the bottom of their container.

• Solid

• Liquid

• Gas

• Plasma

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Particles in this state of matter are positively and negatively charged.

• Solid

• Liquid

• Gas

• Plasma

In this demonstration, what causes the balloon to expand?

• The heat from the room causes the balloon to expand.

• The heat from the hot plate heats the glass and the air inside it expands.

• The balloon spontaneously blows up to try to escape the bottle. 

• I don't know.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Which type of motion in the figure best represents the movement of gas particles?

• Motion 1

• Motion 2

• Motion 3

• Motion 4

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NGSS.MS-PS3-1

What happens to matter as its temperature increases?

• The average kinetic energy of its particles decreases

• The average thermal energy of its particles decreases

• The particles gain kinetic energy

• The particles lose potential energy

Tags

NGSS.MS-PS1-4

What must happen for molecules to move slower?

• Kinetic energy is not changing. Temperature decreases.

• Kinetic energy and temperature depend on the molecules.

• Kinetic energy is decreasing and temperature is decreasing.

• Kinetic energy is decreasing and temperature is increasing.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The more energy that particles have, the ___ they move.

• slower

• faster

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A gas typically consists of:

• low energy particles that experience high attractive forces between them.

• low energy particles that experience no attractive forces between them.

• high energy particles that experience high attractive forces between them.

• high energy particles that experience little attractive force between them

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Which of the following statements is true regarding the particle structure of liquids? Particles of a liquid are:

• very close together, so the liquid cannot easily change its shape.

• fast-moving, so they fill the volume of their container.

• relatively close together, so they cannot be easily compressed.

• very far apart, so they have plenty of room to move around.

Which process could cause a material to change state from gas to liquid?

• Adding heat

• Adding energy

• Removing particles

• Removing energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4