lesson 1 kinetic and potential
an ant crawling across the road is this kind of energy
what is kinetic
way to calculate speed of an object that may not always be at a constant speed
what is average speed
rate at which velocity changes
what is acceleration
a ball would never come down
what happens if there is no gravity
the gravitational force between objects if one has increase in mass
the force would increase
objects above the ground have this kind of energy
what is gravitational potential
formula for average speed
distance over/divided by time
acceleration in circular motion
centripetal acceleration
depends on the directions of the forces involved
how we determine net force
which would have more gravitational force a cow or a cat
cow has more mass
energy that cannot be created or destroyed - only transformed is called
law of conservation of energy
how quickly an object changes position
what is speed
slide down a hill, which is small velocity to large velocity indicates
what is a positive acceleration
Newton's third law of motion
when one object exerts a force on a second object, the second object exerts an equal and opposite force on the first
when gravity is pulling something down with no other forces
what is freefall
kinetic plus potential energy equals
what is mechanical energy
how fast and specific direction
what is velocity
final velocity minus starting velocity divided by time equals
average acceleration
tendency of all objects to resist any change in motion
what is inertia
when objects travels around another object
what is orbit
the ability to cause change
what is energy
location in which you compare other locations
what is reference point
word part centri means
what is center
a push or a pull
what is a force
we weigh less on the moon because...
the moon has less mass