Newton's Third Law of Motion

Front

Force Noun

---

[forss]

Back

Force

---

A push or pull that can cause an object to accelerate, changing its state of motion.

---

Example: A person pushing a box demonstrates force as a push causing motion.

Front

Motion Noun

---

[moh-shun]

Back

Motion

---

The action or process of an object changing its position or location over a period of time.

---

Example: A cyclist moves down and up hills, showing changes in position over time.

Front

State of Motion Noun

---

[stayt uhv moh-shun]

Back

State of Motion

---

The condition of an object's movement, describing if it is motionless, at constant speed, or accelerating.

---

Example: A cyclist accelerates downhill and decelerates uphill, showing changes in motion.

Front

Net Force Noun

---

[net forss]

Back

Net Force

---

The overall force acting on an object, which is the combination of all individual forces.

---

Example: A person pushing a box shows net force as the overall force applied in one direction.

Front

Balanced Forces Noun

---

[bal-unsd for-sez]

Back

Balanced Forces

---

Forces that are equal in size and opposite in direction, resulting in a net force of zero.

---

Example: Two people pulling equally on a rope show balanced forces with no movement.

Front

Unbalanced Forces Noun

---

[un-bal-unsd for-sez]

Back

Unbalanced Forces

---

Forces that are not equal and opposite, causing a change in an object's state of motion.

---

Example: A child pushing and pulling a box shows unbalanced forces causing motion.

Front

Newton's First Law Noun

---

[noo-tunz furst law]

Back

Newton's First Law

---

The law stating an object's motion is unchanged unless an unbalanced force acts upon it.

---

Example: A box on a car continues moving forward when the car stops, showing inertia.

Front

Inertia Noun

---

[in-ur-shuh]

Back

Inertia

---

An object's resistance to any change in its state of motion, which is directly related to its mass.

---

Example: A box on a car keeps moving forward when the car stops, showing inertia.

Front

Mass Noun

---

[mass]

Back

Mass

---

The amount of matter contained within a physical object, typically measured in units of kilograms (kg).

---

Example: A balance scale shows a feather and a rock, illustrating mass as the amount of matter.

Front

Friction Noun

---

[frik-shun]

Back

Friction

---

A force that opposes the relative motion or tendency of such motion between two surfaces in contact.

---

Example: A box on a surface with arrows showing friction opposing the applied force.