Nuclear Chemistry

Nuclear Chemistry

Assessment

Flashcard

Science

9th - 12th Grade

Hard

Created by

Barbara White

FREE Resource

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32 questions

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1.

FLASHCARD QUESTION

Front

Frame of Reference Noun

[freym uhv ref-er-uhns]

Back

Frame of Reference


A system of objects that are not moving with respect to one another, used to describe motion accurately.

Example: An observer's motion affects how they see other objects move. To person C, the cart is moving, but to someone on the cart, points A and B are still.
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2.

FLASHCARD QUESTION

Front

Relative Motion Noun

[rel-uh-tiv moh-shuhn]

Back

Relative Motion


The movement of an object as observed from a particular, specified frame of reference.

Example: The velocity of a person on a moving train cart depends on the observer's frame of reference, illustrating the concept of relative motion.
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3.

FLASHCARD QUESTION

Front

Distance Noun

[dis-tuhns]

Back

Distance


The total length of the path an object travels between two points, regardless of direction.

Example: This diagram shows the measured distances of a running track's straight and curved sections, illustrating the concept of length in a macroscopic, everyday setting.
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4.

FLASHCARD QUESTION

Front

Displacement Noun

[dis-pleys-muhnt]

Back

Displacement


The change in an object's position, defined by the straight-line distance and direction from the start to end point.

Example: This image shows the difference between distance traveled (the 4m + 3m path) and displacement (the 5m direct path from start to finish).
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5.

FLASHCARD QUESTION

Front

Vector Noun

[vek-ter]

Back

Vector


A physical quantity that possesses both magnitude, which is its size or strength, and a specific direction.

Example: A vector is a quantity that has both a magnitude (size or length) and a direction, shown as an arrow pointing from a tail to a head.
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6.

FLASHCARD QUESTION

Front

Resultant Vector Noun

[ri-zuhl-tnt vek-ter]

Back

Resultant Vector


The single vector that represents the sum or combined effect of two or more individual vectors.

Example: This diagram shows that when two vectors (A and B) are added head-to-tail, the resulting vector (C) represents their combined effect.
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7.

FLASHCARD QUESTION

Front

Speed Noun

[speed]

Back

Speed


The rate at which an object covers distance, calculated as the ratio of distance to time.

Example: The image shows the formula for speed (S=D/T) and a mnemonic triangle, using a car as a familiar example of a moving object.
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