# 6th Grade Day 5 Benchmark Review

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Quizzes Created: 59 | Total Attempts: 38,840
Questions: 10 | Attempts: 68

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• 1.

### The change in velocity and the amount of time it takes to make the change in velocity is called

Explanation
Acceleration is the rate at which an object changes its velocity over time. It is a measure of how quickly an object's velocity is changing. When an object undergoes a change in velocity, either by speeding up, slowing down, or changing direction, it is said to be experiencing acceleration. The amount of time it takes for this change in velocity to occur is also considered as part of the definition of acceleration. Therefore, the correct answer to the question is acceleration.

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• 2.

### The speed and direction that something is traveling is its

Explanation
Velocity is a vector quantity that represents both the speed and direction of an object's motion. It describes how fast and in which direction an object is moving. Speed, on the other hand, is a scalar quantity that only represents the magnitude of an object's motion without considering its direction. Therefore, velocity is the correct answer as it encompasses both speed and direction.

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• 3.

### Any change in position is

Explanation
Motion refers to any change in position, whether it is a change in location or a change in orientation. It can be described as the movement of an object from one place to another or the change in the position of an object over time. Therefore, any change in position is considered motion.

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• 4.

### Any time an object speeds up, slows down, or turns

Explanation
Acceleration is the rate at which an object's velocity changes over time. When an object speeds up, slows down, or turns, its velocity is changing, and therefore it is experiencing acceleration. This can occur due to various factors such as the application of a force, changes in direction, or changes in speed. Acceleration is a fundamental concept in physics and is used to describe the motion of objects in terms of how their velocity changes.

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• 5.

### Boiling water is what type of change?

Explanation
Boiling water is a physical change because it involves a change in the state of matter without altering the chemical composition of the substance. When water is heated, it reaches its boiling point and changes from a liquid to a gas, but the water molecules remain the same. No new substances are formed during this process, making it a physical change.

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• 6.

### Iron, cobalt, and nickel are known as the

Explanation
Iron, cobalt, and nickel are known as the iron triad because they share similar chemical and physical properties. These elements are transition metals and are located in the same group of the periodic table. They have similar electronic configurations and exhibit magnetic properties. Additionally, they are all relatively hard and have high melting and boiling points. The term "iron triad" is used to highlight the similarities and close relationship between these three elements.

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• 7.

### When you bake a cake it is a ____ change

Explanation
When you bake a cake, it undergoes a chemical change. This is because the ingredients of the cake, such as flour, sugar, and eggs, react with each other and with heat to form new substances with different properties. The process of baking involves chemical reactions, such as the Maillard reaction, which causes browning and flavor development in the cake. Therefore, the transformation of the cake during baking is considered a chemical change rather than a physical change.

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• 8.

### Groups 3-12 on the periodic table are the ___ elements

Explanation
Groups 3-12 on the periodic table are known as transition elements. These elements are characterized by their ability to form stable ions with incompletely filled d orbitals. Transition elements exhibit a wide range of chemical and physical properties and are often used in various industrial applications. They are also known for their ability to form complex compounds and exhibit multiple oxidation states.

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• 9.

### Groups 1 and 2 and 13-18 are the ___ elements

Explanation
The given answer "representative" is correct because it accurately describes the elements in Groups 1 and 2 and 13-18. These groups are also known as the representative elements or the main group elements. They are located in the s and p blocks of the periodic table and exhibit a wide range of chemical properties.

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• 10.

### A liquids resistance to flow is

Explanation
Viscosity refers to a liquid's resistance to flow. It is a measure of the internal friction within a fluid, determining how easily it can flow or be poured. Liquids with high viscosity, such as honey or molasses, have a thick consistency and flow slowly, while liquids with low viscosity, such as water or alcohol, have a thin consistency and flow more easily. Therefore, viscosity is the correct answer to the question.

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