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Questions and Answers
What is the definition of an annulus?
What is the definition of an annulus?
- A line segment whose endpoints lie on the circle
- The point equidistant from all points on the circle
- The region bounded by two concentric circles (correct)
- The length of one circuit along the circle
What is the circumference of a circle?
What is the circumference of a circle?
- A line segment whose endpoints lie on the circle
- Any connected part of a circle
- The point equidistant from all points on the circle
- The length of one circuit along the circle (correct)
What is the definition of a chord in a circle?
What is the definition of a chord in a circle?
- A ring-shaped object, the region bounded by two concentric circles
- A line segment whose endpoints lie on the circle, thus dividing a circle into two segments (correct)
- The point equidistant from all points on the circle
- The length of one circuit along the circle
What is the diameter of a circle?
What is the diameter of a circle?
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What is the definition of a disc in relation to a circle?
What is the definition of a disc in relation to a circle?
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What defines a solid state of matter?
What defines a solid state of matter?
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What type of materials are solid-state electronics based on?
What type of materials are solid-state electronics based on?
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What happens to the atoms or molecules of a solid when it is heated?
What happens to the atoms or molecules of a solid when it is heated?
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What type of shape do solids tend to have?
What type of shape do solids tend to have?
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Which of the following is an example of a solid?
Which of the following is an example of a solid?
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Study Notes
Circle Basics
- An annulus is a ring-shaped region between two concentric circles.
- The circumference of a circle is the distance around the circle.
- A chord in a circle is a line segment within the circle that connects two points on the circle's circumference.
- The diameter of a circle is the longest distance across the circle, passing through its center.
Solids
- A solid state of matter is characterized by a fixed shape and volume.
- Solid-state electronics are based on semiconductor materials, such as silicon.
- When a solid is heated, its atoms or molecules gain kinetic energy and start vibrating more rapidly.
- Solids tend to have a fixed shape and retain it unless an external force is applied.
- Examples of solids include rocks, metals, and ice.
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