# Ch 1 Lesson 1 Quiz

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• 1.

### The amount of force applied per unit of area

• A.

Pressure

• B.

Density

A. Pressure
Explanation
Pressure is defined as the amount of force applied per unit of area. It is a measure of how much force is distributed over a given area. Pressure can be calculated by dividing the force applied by the area over which it is applied. Density, on the other hand, is a measure of mass per unit volume and is not directly related to force or area. Therefore, the correct answer is pressure.

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• 2.

### Tells you whether a material is a solid, liquid, or gas

• A.

Freezing point

• B.

State of matter

B. State of matter
Explanation
The term "state of matter" refers to the physical form in which a substance exists, whether it is a solid, liquid, or gas. The freezing point is the temperature at which a substance changes from a liquid to a solid. Therefore, the concept of the state of matter encompasses the freezing point as it helps determine whether a material is a solid, liquid, or gas.

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• 3.

### Anything that takes up space and has mass

• A.

Liquid

• B.

Matter

B. Matter
Explanation
Matter refers to anything that occupies space and has mass. It includes both solid, liquid, and gas forms. In this case, the given options are liquid and matter. While liquid is a type of matter, matter is a broader term that encompasses all physical substances. Therefore, matter is the correct answer as it encompasses liquids along with other forms of substances.

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• 4.

### When an object is placed in a fluid, the object weighs less by an amount equal to the weight of the displaced fluid

• A.

Pascal's Principle

• B.

Archimede's Principle

B. Archimede's Principle
Explanation
Archimede's Principle states that when an object is placed in a fluid, it experiences an upward buoyant force equal to the weight of the fluid it displaces. This buoyant force reduces the effective weight of the object, making it weigh less than it would in a vacuum. This principle helps explain why objects float in water and why some objects feel lighter when submerged in a fluid.

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• 5.

### Mass divided by volume

• A.

Density

• B.

Pressure

A. Density
Explanation
Density is a physical property of a substance and is defined as the mass of a substance divided by its volume. It represents how tightly packed the particles of a substance are. A substance with a higher density will have more mass in a given volume compared to a substance with a lower density. Density is commonly used to identify and classify different materials and is an important factor in various scientific and engineering calculations. Pressure, on the other hand, is the force applied per unit area and is not directly related to mass and volume.

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• 6.

### If the attractions between particles are strong enough to hold the particles in almost fixed positions but still slipping and sliding past each other, the matter involved is in a ____state

• A.

Solid

• B.

Liquid

• C.

Gas

B. Liquid
Explanation
When the attractions between particles are strong enough to hold them in almost fixed positions, but they are still able to slip and slide past each other, the matter is in a liquid state. In a liquid, the particles have enough energy to overcome some of the attractive forces and move around, but they are still close enough to each other to maintain a definite volume.

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• 7.

### Solids are called ____ solids if their particles are arranged in a repeated three-dimensional pattern.

• A.

Amorphous

• B.

Chrystalline

B. Chrystalline
Explanation
Solids are called crystalline solids if their particles are arranged in a repeated three-dimensional pattern. This arrangement creates a regular and orderly structure, with particles forming a crystal lattice. The repeating pattern gives crystalline solids their characteristic properties such as high melting points, definite shapes, and the ability to form well-defined crystal faces. In contrast, amorphous solids do not have a regular arrangement of particles and lack long-range order. They have a more random and disordered structure, resulting in different properties compared to crystalline solids.

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• 8.

### Because particles in a liquid move more freely than those in a solid, liquids have no definate

• A.

Shape

• B.

Volume

A. Shape
Explanation
Liquids do not have a definite shape because the particles in a liquid are not held in a fixed position. They are able to move and flow past one another, allowing the liquid to take the shape of its container. Unlike solids, which have a fixed shape, liquids are able to adapt and change their shape based on the container they are in. Therefore, the correct answer is shape.

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• 9.

### A gas partially fills its container

• A.

True

• B.

False

B. False
Explanation
The statement "A gas partially fills its container" is false. A gas does not partially fill its container, but instead it completely fills the available space within its container. Unlike liquids or solids, gases have no definite shape or volume, and they expand to fill the entire container they are in. Therefore, the correct answer is false.

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• 10.

### The physical state of a type of matter depends mostly upon how its atoms and molecules are arranged and how they move.

• A.

True

• B.

False

A. True
Explanation
The physical state of matter, whether it is solid, liquid, or gas, is determined by the arrangement and movement of its atoms and molecules. In a solid, the particles are tightly packed and vibrate in fixed positions. In a liquid, the particles are close together but can move past each other. In a gas, the particles are far apart and move freely. Therefore, the statement that the physical state of matter depends on the arrangement and movement of its atoms and molecules is true.

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• 11.

• A.

True

• B.

False