Force of Gravity

Front

Mass Noun

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[mas]

Back

Mass

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The amount of matter or 'stuff' in an object, which remains constant regardless of location or gravity.

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Example: A balance scale with a feather and a rock shows how mass affects balance.

Front

Weight Noun

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[wayt]

Back

Weight

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The measure of the force of gravity pulling on an object, which can change depending on the gravitational pull.

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Example: The apple falling from the tree shows gravity pulling it down, illustrating weight as the force of gravity.

Front

Gravity Noun

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[grav-i-tee]

Back

Gravity

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A fundamental force of attraction between any two objects with mass, dependent on their masses and the distance between them.

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Example: Two objects with mass attract each other with a force, shown by arrows.

Front

Acceleration Noun

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[ak-sel-uh-rey-shuhn]

Back

Acceleration

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The rate at which an object's speed or velocity changes over a period of time, which can be positive or negative.

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Example: A ball is pushed by a spring, showing acceleration as it speeds up in one direction.

Front

g (Acceleration of Gravity) Noun

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[jee (ak-sel-uh-rey-shuhn of grav-i-tee)]

Back

g (Acceleration of Gravity)

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The specific acceleration of an object due solely to the force of gravity, approximately 9.8 m/s² on Earth's surface.

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Example: An apple falling from a tree shows gravity pulling it downward at 9.8 m/s².

Front

Net Force Noun

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[net fors]

Back

Net Force

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The overall force acting on an object, calculated as the vector sum of all individual forces applied to it.

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Example: Arrows show different forces on a box, combining to form the net force.

Front

Balanced Forces Noun

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[bal-uhnsd for-ses]

Back

Balanced Forces

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When forces acting on an object are equal in size and opposite in direction, resulting in zero net force.

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Example: A person pushing a wall experiences balanced forces with equal and opposite arrows labeled 'action' and 'reaction'.

Front

Unbalanced Forces Noun

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[uhn-bal-uhnsd for-ses]

Back

Unbalanced Forces

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When the forces acting on an object are not equal, resulting in a net force that causes a change in motion.

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Example: Two people pulling a box with arrows showing different forces, illustrating unbalanced forces causing motion.

Front

Deceleration Noun

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[dee-sel-uh-rey-shuhn]

Back

Deceleration

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A decrease in an object's speed or velocity over time, which is also known as negative acceleration.

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Example: A car stopping causes a box on top to slide forward, showing deceleration.

Front

Apparent Weight Noun

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[uh-par-uhnt wayt]

Back

Apparent Weight

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The force an object exerts on a supporting surface, which can differ from its actual weight due to acceleration.

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Example: Arrows show apparent weight and actual weight (mg) acting on an object.