Universal Gravitation

Universal Gravitation

Assessment

Flashcard

Science

9th - 12th Grade

Hard

Created by

Barbara White

Used 1+ times

FREE Resource

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23 questions

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1.

FLASHCARD QUESTION

Front

Gravity Noun

[grav-i-tee]

Back

Gravity


The fundamental noncontact attractive interaction that exists between any two objects that possess mass.

Example: This diagram shows that gravity is a mutual force of attraction between two objects with mass, like the Earth and another celestial body.
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2.

FLASHCARD QUESTION

Front

Free Fall Noun

[free fawl]

Back

Free Fall


The motion of an object where gravity is the only significant force acting upon it, resulting in constant acceleration.

Example: A satellite orbiting Earth is in a constant state of free fall, where Earth's gravity is the only force pulling it inward, causing it to continuously 'fall' around the planet.
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3.

FLASHCARD QUESTION

Front

Weight Noun

[wayt]

Back

Weight


The gravitational force exerted on an object by a large celestial body, such as a planet or a star.

Example: An object's mass (50 kg) stays the same, but its weight changes (110 lbs on Earth vs. 42 lbs on Mars) because weight is a measure of gravitational force.
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4.

FLASHCARD QUESTION

Front

Mass Noun

[mas]

Back

Mass


A measure of the amount of matter in an object, which also determines its inertia or resistance to acceleration.

Example: This image shows that an object's mass (1 kg) stays the same on both Earth and Mars, while its weight changes due to different gravity.
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5.

FLASHCARD QUESTION

Front

Center of Mass Noun

[sen-ter uv mas]

Back

Center of Mass


The unique point in an object or system where the weighted relative position of its distributed mass sums to zero.

Example: The center of mass (C) is the average position of all mass in a system. For two equal masses (m1 and m2), this balance point is exactly halfway between them.
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6.

FLASHCARD QUESTION

Front

Gravitational Constant Noun

[grav-i-tey-shuh-nl kon-stuhnt]

Back

Gravitational Constant


The empirical physical constant that quantifies the magnitude of the gravitational force between two bodies in Newton's universal gravitation law.

Example: This diagram shows two masses (m1, m2) attracting each other with a force (F) over a distance (r). The Gravitational Constant defines the strength of this universal attraction.
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7.

FLASHCARD QUESTION

Front

Unit Vector Noun

[yoo-nit vek-ter]

Back

Unit Vector


A vector with a magnitude of exactly one, which is used to specify a particular direction in space.

Example: This diagram shows the three standard unit vectors, î, ĵ, and k̂. Each has a length of one and points along the X, Y, or Z axis, defining directions in 3D space.
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