Physics Flashcards
The law of inertia applies to
both moving and non-moving objects.
Inertia is the measurement of an object’s
Mass
What is inertia?
An object/body maintain its current state of motion until acted upon by a non-zero net force.
Newton’s 1st Law
Inertia
What is the net force?
The overall force acting on an object
Acceleration is produced by?
Forces
Acceleration is what to mass
Inversely proportional
Where does friction act?
opposite of the objects motion
What is weight?
The force of gravity acting on the mass
what is mass?
the measurement of inertia, amount of matter present
Newton’s 2nd Law
acceleration is directly proportional to the net force and inversely proportional to mass
Newton’s 3rd Law
For every action, there is a equal and opposite reaction
Forces always occur in?
Pairs
What is friction?
Force always opposing motion
Is friction greater than your force?
No
What is normal Force?
The force perpendicular to a surface
Example of Newton’s 1st Law
An asteroid traveling through space keeps it current direction and speed forever until it collides with an object
Example of Newton’s 2nd Law
If the force of the pedal on a bike doubled the acceleration of the bike will double, if the mass also doubled the acceleration will be halve.
Example of Newton’s 3rd Law
Walking as you exert a force on the ground and the ground exerts a force on you enabling you to walk
What is terminal velocity?
The maximum velocity of a falling object due to air resistance increasing as the velocity increases, causing the vertical forces to be balanced.
Factors that affect terminal velocity
Surface Area, Mass, shape, atmospheric density
Natural Motion
the movement of an object without external force
Violet Motion
Having imposed motion, a force externally applied to an object
Example of natural motion
Smoke rising and a stone falling
