particle arrangement
A teacher asks a student to come up to the front of the class and tells her to say what she knows about molecular motion in a solid and when it is heated up. She says: the molecules in a solid are constantly vibrating but in a fixed position. When thermal energy is applied, the particles move faster and have more kinetic energy,causing the solid to expand. Is she correct?
John and Max are having a debate about how particles are arranged in a solid. John says that the particles in a solid are tightly packed together and bonded together. He also makes the claim that a solid has an indefinite shape and definite volume and intermolecular forces are present. Max argues that the particles are tightly packed together but are not bonded and that solids have both a definite shape and volume and intermolecular forces are present. Who is correct and why?
A- john- the particles are tightly packed together and bonded;there is an indefinite shape and definite volume
B-max- the particles are tightly packed together but not bonded; there is a definite shape and volume
C- IDK
D- neither- the particles are tightly packed together and bonded;there is a definite shape and volume
D- neither- the particles are tightly packed together and bonded;there is a definite shape and volume
A teacher asks a student to come up to the front of the class and tells her to say what she knows about molecular motion in a solid and when it is heated up. She says: the molecules in a solid are constantly vibrating but in a fixed position. When thermal energy is applied, the particles move faster and have more kinetic energy,causing the solid to expand. Is she correct?
A-No, the particles do not vibrate and stay in place and thermal energy does not affect the solid/it’s motion
B-yes, she is correct about intermolecular motion and how the particles move in solids
C- yes, she is correct about the motion of particles but she is not correct about the fact that they vibrate
D-no, she is talking about a liquid or gas
B-yes, she is correct about intermolecular motion and how the particles move in solids
A teacher hands her students an envelope with a sheet of paper and 4 pictures: a cube (solid),water (liquid),methane (gas),and lightning (plasma). The directions say to put the picture next to the state of matter that it represents in terms of particle arrangement. Here are the four statements
The particles are packed together but not very tightly, There is a definite volume,indefinite shape, and the molecules are not bonded together. Intermolecular forces present.
The particles are bonded together and tightly packed with a definite volume and shape. Intermolecular forces present
The particles are ionized and freely spread apart. They have an indefinite shape and volume and are not bonded together.
The particles are not bonded and spread apart. They have an indefinite shape and volume.
In which order should the pictures be placed?
A-cube (solid),water (liquid),methane (gas),and lightning (plasma)
B- cube (solid), methane (gas), water (liquid), lightning (plasma) .
C- water (liquid), cube (solid), lightning (plasma), methane (gas)
D- there is not enough information to conclude the arrangement of pictures.
C- water (liquid), cube (solid), lightning (plasma), methane (gas)
Alex is playing a drag and drop game where he must place the state of matter next to the accurate description of its molecular motion. Here are the descriptions
The particles vibrate in a fixed position back and forth and when exposed to heat, they vibrate faster and the state of matter expands
The charged particles are spread apart and move with a lot of kinetic energy and move freely. When thermal energy is added, the particles collide and push apart (causing the electrons to be knocked off of their orbit) and they move faster and the state of matter expands
The particles are a little spread apart but still a little packed together (enough where they can move around and slide past each other) and when exposed to heat, their movement speeds up and the particles collide causing the them to move further apart and the state of matter to expand
The particles move around freely and are far apart from each other and are moving fast. When exposed to heat, they have more kinetic energy )speed up even more) and collide causing the particles to push apart and the state of matter expands
Which order should he drag the states of matter in ?
A- solid, plasma, liquid,gas
B- liquid,plasma,solid,gas
A- solid, plasma, liquid,gas
Cindy pours a glass of liquid water from a pitcher. She says that the particles in the liquid are packed together but not very tightly and are not bonded. She sees that the pitcher is larger than the cup but also sees that the amount of water stayed the same but the “shape of the water”. changed. Is her statement correct?
A- yes, liquid molecules are packed together but not very tightly (and are not bonded)- the liquid has a definite shape and indefinite volume
B- No, liquid molecules are very spread apart and bonded together; the liquid has a definite shape and indefinite volume
C- no, liquid molecules are bonded together and tightly packed together; the liquid has a definite shape and indefinite volume
D- yes, liquid particles are not bonded together and are packed but not very tightly; liquids have an indefinite shape and a definite volume
D- yes, liquid particles are not bonded together and are packed but not very tightly; liquids have an indefinite shape and a definite volume
True or false: the molecules in a liquid are able to slide past each other and move around a little bit. When the liquid is heated, the molecules speed up and collide with each other causing them to move further apart but the liquid does not expand
A-False-the liquid does expanded because the molecules move further apart
B-True- the molecules are able to slide past each other and the liquid does not expand
C-False- the molecules cannot move at all and when exposed to heat, the liquid expands
D- True-the molecules can move past each other and the liquid does not expand when the molecules collide and move apart
A-False-the liquid does expanded because the molecules move further apart
Mr. Michael was teaching a lesson about the arrangement of particles in plasma. He says that plasma is an ionized gas,far apart and that they have an indefinite shape and volume like a gas. He also says that these particles are not bonded together and that they move around freely like gases. A student disagrees and says that the particles don’t move around freely. Who is correct and why?
A-Mr michael- the particles are separated/individual,far apart, freely moving, and have an indefinite volume and shape
B- the student- the particles are bonded together and do not move around freely/they have an indefinite shape and volume
C- student- the particles are bonded together and do not move at all/they have an indefinite shape and volume
D- Mr.Michael- the particles are separate, free moving/far apart, and have a definite shape and volume
A-Mr michael- the particles are separated/individual,far apart, freely moving, and have an indefinite volume and shape
Bob watches a video on molecular motion of a state of matter he hears that the molecules move very very fast with high levels of kinetic energy. They are super spread apart and because of how violently they collide (especially when exposed to thermal energy) the electrons in the atoms of the matter are knocked out of their orbit and are now moving freely (hence they are called ionized gases). He wants to leave a comment on the video to show how informative it was;what should he write?
A-The video was accurate and great for information on molecular motion in a solid
B-The video was accurate and had great information on molecular motion in a liquid
C-The video did not correctly explain molecular motion in plasma
D-The video was accurate and had great information on molecular motion is plasma
D-The video was accurate and had great information on molecular motion is plasma
Ms.Green hands out an assignment about the arrangement of particles in a gas and asks her students to fill out the sheet. It says: gases have a(n) _______ shape and a(n) ________ volume. . Gas particles move around _________ and are far apart and ______ bonded together. What words fill in the blanks?
A- indefinite,indefinite,freely,not
B- definite,definite,freely,not
C-indefinite,indefinite,badly,not
D- definite,definite, anxiously,not
A- indefinite,indefinite,freely,not
Students in the classroom spread apart and move around freely and further apart. The teacher places a picture of fire on the whiteboard and the students start to run around much faster and collide together causing them to move even further and the circle of people to expand. A student says that this represents the molecular motion in a liquid. Is he correct?
A-yes she is
B-no it represents a gas
C-no it represents a solid
D-yes she is correct it represents a liquid
B-no it represents a gas