Modeling Magnetic Force

Front

Attract Verb

---

[uh-trakt]

Back

Attract

---

To exert a non-contact force that pulls an object closer, a key interaction in magnetic and electric systems.

---

Example: This diagram shows two bar magnets with opposite poles (North and South) facing each other, causing them to pull together or attract.

Front

Repel Verb

---

[ri-pel]

Back

Repel

---

To exert a non-contact force that pushes an object away, a key interaction in magnetic and electric systems.

---

Example: Two magnets with their similar poles (North and North) facing each other create a force that pushes them apart.

Front

Magnetic Pole Noun

---

[mag-net-ik pohl]

Back

Magnetic Pole

---

A region at each end of a magnet where the external magnetic force is strongest, labeled as north or south.

---

Example: This diagram shows a magnet's two poles, North (N) and South (S), which are the areas where the magnetic force is strongest.

Front

Magnetic Field Noun

---

[mag-net-ik feeld]

Back

Magnetic Field

---

The invisible region around a magnetic object where its magnetic force can influence other objects or be detected.

---

Example: This diagram shows the invisible magnetic field around a bar magnet. The lines with arrows show the direction of the magnetic force from the North pole to the South pole.

Front

Magnetic Field Line Noun

---

[mag-net-ik feeld line]

Back

Magnetic Field Line

---

A line used in a visual model to represent the direction and relative strength of a magnetic field.

---

Example: This image shows the invisible magnetic field lines around a bar magnet. The arrows point in the direction of the magnetic force, from the north pole to the south pole.

Front

Geomagnetism Noun

---

[jee-oh-mag-nuh-tiz-uhm]

Back

Geomagnetism

---

The magnetic field associated with the planet Earth, which extends from the planet's interior out into space.

---

Example: This image shows Earth's magnetic field (geomagnetism) protecting the planet by deflecting the solar wind, a stream of particles from the sun.

Front

Electromagnetic Force Noun

---

[ih-lek-troh-mag-net-ik fors]

Back

Electromagnetic Force

---

A fundamental force of nature that acts between electrically charged particles, encompassing both electric and magnetic forces.

---

Example: This image shows the magnetic part of the electromagnetic force, where opposite poles (N-S) attract and like poles (N-N, S-S) repel.

Front

System Noun

---

[sis-tuhm]

Back

System

---

A set of interacting parts or objects that form a complex whole and are studied together as a single entity.

---

Example: The Earth and Moon form a system where the force of gravity keeps the Moon in a constant orbit around the Earth.

Front

Energy Noun

---

[en-er-jee]

Back

Energy

---

The quantitative property that must be transferred to an object in order to perform work on or to heat it.

---

Example: A ball at the top of a ramp has stored potential energy, which changes to kinetic energy (the energy of motion) as it rolls down.

Front

Potential Energy Noun

---

[puh-ten-shuhl en-er-jee]

Back

Potential Energy

---

The stored energy an object possesses due to its position, arrangement, or state within a physical system.

---

Example: A boulder pushed up a mountain gains gravitational potential energy; the higher it goes, the more stored energy it has.