Physics year 10

Newtons Law of motions

Distance

How far an object travels (magnitude)

Displacement

The distance from the starting to the ending point (direction + magnitude)

how to find displacement

Draw a straight line from the starting point to the ending point

Scalar quantity

AI Overview

physical quantities described only by a magnitude

Vector quantity

possess both magnitude and direction, like displacement

Speed

measures how fast an object is moving (distance over time)

Velocity

measures an object's speed in a specific direction (displacement over time)

Acceleration

is the rate at which an objects velocity changes with respect to time

Newtons first Law (inertia)

An object will remain at rest, or in constant motion, unless acted upon by an external force.

Newtons second law

The force on an object equals the rate of change of its momentum with respect to time

F=MxA

force equals mass times acceleration

A = V divided by T

Acceleration = Velocity divided by Time

FxT = MxV

Force multiplied by Time = Mass multiplied by Velocity

Newtons third law

For every action, theres an equal and opposite reaction

Equal + Opposite reaction

How much force + direction

Seatbelt

To secure people to the car and distribute the force of impact across the strongest parts of the body, spreading the impact force and stopping the person from flying forward

AirBags

are supplementary restraint systems that inflate during a collision to protect the head and body from striking the vehicle's interior

Crumple Zones

are specific areas of the car's structure designed to deform and absorb crash energy, preventing it from being transferred directly to the occupants.