Physics Chapter: Speed and Velocity

How fast something is moving, measured in meters per second (m/s).

Speed with a direction, measured in meters per second (m/s) and specifying a direction (e.g., 30 m/s east).

A quantity that has only magnitude (size).

A quantity that has both magnitude (size) and direction.

Total distance traveled divided by the total time taken.

A graph that displays the distances traveled over time.

The slope or steepness of the line on a distance-time graph, which represents speed.

A distance-time graph's shape shows an object's motion, straight line = constant speed, curves = changes in speed (acceleration, deceleration).

The body's system of maintaining a stable internal temperature despite external changes.

Organs, tissues or cells that produce a response to a stimulus. They carry out the instructions from the control center.

The widening of blood vessels, allowing more blood to flow through them to cool the body.

The narrowing of blood vessels, reducing blood flow to conserve heat.

A complex carbohydrate stored in the liver and muscles, providing a readily available source of energy.

The rate of change of velocity in the vertical direction.

The rate of change of velocity in the horizontal direction.

Calculating distance travelled using uniform acceleration.

A force that pulls objects towards each other, always acts downwards.

A force that pushes back on an object when it contacts a surface.

A force between two charged objects.

A force that pushes an object forward.

A force that slows down objects moving through the air.

A force that opposes motion between two surfaces.

An upward force, like that generated by wings or water.

The overall force acting vertically, calculated by subtracting opposing forces.

The overall force acting horizontally, calculated by subtracting opposing forces.

A way to find the length of the longest side (hypotenuse) of a right-angled triangle when the other two sides are known. (a² + b² = c²)

A push or pull that can change the motion of an object.

The strength of a force. The longer the arrow on a diagram representing force, the greater the force's magnitude.

A quantity that has both magnitude and direction (e.g., force).

The single force that has the same effect as all the combined forces acting on an object.

Calculate the overall force in a given direction (vertical or horizontal) by subtracting opposing forces; then (if necessary) use the Pythagorean theorem and square root to find the magnitude of the resultant force.

A network of glands that release hormones directly into the bloodstream to regulate various bodily functions.

Chemical messengers produced by glands in the endocrine system, traveling through the bloodstream to target cells or organs.

The control center of the endocrine system, linking it to the nervous system and coordinating hormone release.

A mechanism that maintains balance in the body by reversing changes that disrupt normal levels.

The process of maintaining a stable internal environment in the body despite external changes.

A hormone involved in childbirth, social bonding, and milk production.

A hormone produced by the pineal gland that regulates sleep-wake cycles.

A hormone produced by the thyroid gland that regulates metabolism.

A hormone produced by the pancreas that regulates blood glucose levels.

The process of maintaining stable blood glucose levels through the actions of insulin and glucagon.

A hormone produced by the pancreas that lowers blood glucose levels by promoting glucose uptake by cells and storage as glycogen in the liver.

A hormone produced by the pancreas that raises blood glucose levels by stimulating the liver to break down glycogen into glucose.

A condition where the pancreas doesn't produce enough insulin, requiring regular insulin injections.

A condition where the body becomes resistant to insulin, leading to high blood glucose levels.

The liver stores and releases glucose, helping regulate blood sugar levels. It converts glucose into glycogen for storage and glycogen back to glucose when needed.

The pancreas produces insulin and glucagon, hormones that control blood glucose levels.