Studied by 3 people
Distance
the length of the route between two points.
speed
It is a measure of how fast or slow something moves
velocity
The measure of both speed and direction
average speed
the total distance traveled divided by the total time it took to travel that distance.
difference between speed anv velocity
speed does not include direction and velocity does
acceleration
a measure of the change in velocity of a moving object.
force
a push or a pull acting on an object.
3 examples of force
Pushing a stroller
pedaling a bike
gravity pulling you
unit for force
newton
what does friction produce
heat
what is friction
a force that opposes motion between two surfaces that are touching
gravity
a pull twoard the center of the planet
Unit for weight
kilogram
what factors impact gravity?
Objects with greater mass have a stronger force of gravity
Objects that are closer together have a stronger force of gravity
acceleration due to gravity
9.8 m/s2
newton 1 law
an object at rest will remain at rest and an object in motion will stay in motion unless it is acted on by an unbalanced force
inertia
the tendency of an object to resist a change in its motion
How do we change the motion of an object?
acting on it with an unbalanced force
newton 2 law
the acceleration of an object equals the net force acting on the object divided by the object’s mass
What is the relationship between force and acceleration?
the greater the force that is applied to an object of a given mass, the more the object will accelerate.
What is the relationship between mass and acceleration?
The greater the mass of an object, the less it will accelerate when a given force is applied.
newton 3 law
every action has an equal and opposite reaction
Note 
Flashcard (41)