Pods for Emergency Supplies

Front

Force Noun

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[fors]

Back

Force

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A push or pull exerted on an object that can cause a change in its state of motion or shape.

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Example: A person pushes a large box, applying a force to move it. The arrow shows the direction of the push force.

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: This diagram shows two opposing forces on an object: a 600N downward force of gravity and a 200N upward force of air resistance.

Front

Mass Noun

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[mas]

Back

Mass

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

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Example: A balance scale shows that the rock has more mass than the feather, causing its side of the scale to tip down.

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 velocity changes over time, which can involve a change in speed or direction.

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Example: A car slowing down for a speed hump is an example of acceleration, because its speed is changing (in this case, decreasing).

Front

Inertia Noun

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[in-ur-shuh]

Back

Inertia

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The natural tendency of an object to resist any change in its state of motion, whether at rest or moving.

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Example: When the car stops suddenly, the box continues to move forward because its inertia resists the change in motion.

Front

Air Resistance Noun

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[air ri-zis-tuhns]

Back

Air Resistance

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A type of frictional force, or drag, that opposes the motion of an object as it moves through the air.

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Example: This image shows that air resistance is an upward force that pushes against a falling object, like a parachute, slowing it down as gravity pulls it.

Front

Impulse Noun

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[im-puhls]

Back

Impulse

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The change in momentum of an object, calculated as the product of the force applied and its duration.

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Example: This icon shows a ball beginning to roll down a ramp, representing a change in motion caused by a force acting over time.

Front

Crumple Zone Noun

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[kruhm-puhl zohn]

Back

Crumple Zone

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A structural feature designed to deform upon impact, extending collision time to reduce the peak force exerted on occupants.

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Example: This image shows how a car's front, the crumple zone, is designed to crush during a collision to absorb the energy of an impact.

Front

Criteria Noun

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[krahy-teer-ee-uh]

Back

Criteria

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The specific goals, requirements, and standards that a design must meet to be considered successful in solving a problem.

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Example: This checklist represents criteria, which are the standards or rules used to evaluate something, like checking if a design for a new water filter meets all the requirements.

Front

Constraints Noun

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[kuhn-streynts]

Back

Constraints

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The limitations or restrictions placed on a design solution, such as available materials, budget, safety regulations, or time.

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Example: In an engineering project, constraints are limits like having a fixed amount of time (clock) or money (coin) to complete the task.