Atomic Theory

The kinetic theory of matter states that matter is made up of tiny particles that are in constant motion. Which of the following relates to the kinetic theory?

• the relationship between mass and weight

• the relationship between a balance and a scale

• the relationship between solids, liquids, and gases

• the relationship between mass, volume, and density

Tags

NGSS.MS-PS1-4

Susie is investigating the particles in a cup of hot water and the water vapor above the cup. What can she say about the motion of the particles in all of the substances?

• They do not move

• They are always moving

• They move past each other slowly

• They move very fast in all directions

Tags

NGSS.MS-PS1-4

Ben draws a model to show how the water particles and iron particles move as the pot of water was heated. How should Ben's second model differ from the first?

• The water particles should vibrate faster, and the iron particles should not move.

• Both the water particles and the iron particles should slide past each other faster.

• The water particles should slide past each other faster, and the iron particles should vibrate.

• The water particles should move freely in all directions, and the iron particles should slide past each other faster.

Tags

NGSS.MS-PS1-4

In which state of matter are the particles able to move around one another?

• gases only

• liquids only

• gases and liquids only

• gases, liquids, and solids

Which claim about the carbon atoms that make up a diamond can be supported by evidence?

• They can slip past one another slowly.

• They are always vibrating in place.

• They vibrate only when they are heated.

• They are locked in place and do not move at all.

Tags

NGSS.MS-PS1-4

Which state of matter will take both the volume and shape of the container that holds it?

• gas

• ice

• liquid

• solid

Which of these particles is the smallest?

• an atom

• a nucleus

• a proton

• an electron

Marcus wants to use two objects to compare the sizes of a proton and an electron. If he uses a basketball for a proton, which object would represent an electron?

• a pea

• a bowling ball

• a beach ball

• a soccer ball

Which statement best describes what would happen if an electron were added to an atom?

• the atom would have a neutral charge

• the atom would have a negative charge

• the atom would have a positive charge

• the atom would have a smaller atomic number

Which group lists the parts of an atom from the most massive to the least massive?

• proton, nucleus, electron

• nucleus, electron, proton

• electron, nucleus, proton

• nucleus, proton, electron