MS-PS3-2: Potential Energy Systems

Front

Net Force Noun

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[net fors]

Back

Net Force

---

The overall force acting on an object, calculated by combining all individual forces, which determines changes in motion.

---

Example: A spring pushes a ball, showing how net force causes motion.

Front

Force Noun

---

[fors]

Back

Force

---

A push or a pull exerted on an object that can cause it to change its motion, direction, or shape.

---

Example: A ball on a slope with arrows shows force causing it to roll down.

Front

Friction Noun

---

[frik-shun]

Back

Friction

---

A force that opposes motion when two surfaces are in contact with each other.

---

Example: A box on a surface shows friction opposing the applied force, with a close-up of the contact area.

Front

Balanced Forces Noun

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[bal-ansd for-sez]

Back

Balanced Forces

---

Two or more equal forces acting on an object in opposite directions, resulting in a net force of zero.

---

Example: Two people pulling a rope with equal force in opposite directions, showing balanced forces.

Front

Gravity Noun

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[grav-i-tee]

Back

Gravity

---

An invisible force of attraction that exists between any two objects that have mass.

---

Example: Arrows show gravity pulling objects towards Earth, illustrating the force of attraction.

Front

Mass Noun

---

[mas]

Back

Mass

---

The measure of the amount of matter contained within a physical object, typically measured in kilograms.

---

Example: A balance scale showing a feather and a rock illustrates that mass is the amount of matter in an object.

Front

Gravitational Field Noun

---

[grav-i-tay-shun-ul feeld]

Back

Gravitational Field

---

The invisible area of influence surrounding an object with mass where its gravitational force can be experienced.

---

Example: The image shows Earth's gravitational field influencing another object with arrows indicating the force direction.

Front

Drag Noun

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[drag]

Back

Drag

---

A type of friction caused by air resistance that opposes an object's motion as it moves through the air.

---

Example: The image shows how drag opposes an airplane's motion, with arrows indicating the forces acting on it.

Front

Aerodynamic Adjective

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[air-oh-dy-nam-ik]

Back

Aerodynamic

---

Having a shape or design that reduces the drag from air moving past it, allowing for easier movement.

---

Example: The image shows how the car's shape allows air to flow smoothly over it, reducing drag.

Front

Acceleration Noun

---

[ak-sel-er-ay-shun]

Back

Acceleration

---

The rate at which an object changes its velocity, which can be a change in speed or direction.

---

Example: Arrows show cars changing lanes, illustrating acceleration as a change in speed or direction.

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