Science 1
the change in position of an object relative to a reference point
motion
rate of change in velocity
acceleration
returns a deformed solid to its original shape
elastic force
affects subatomic particles
Nuclear force
The galaxy that contains the Sun and our Solar System
Milky Way
upward force exerted by a fluid
buoyant force
attraction or repulsion of moving electrical charges (dipoles)
magnetic force
force between electrically charged objects
Electrical force
The property that a mass has due to its motion.
momentum
When one object partially or totally blocks sunlight from another object.
Eclipse
equal forces that act in opposite directions
balanced forces
the force that makes an object moved in a curved path
centripetal force
a force that involved contact between the object exerting the force and the object being changed by the force.
contact force
the speed at a given moment
instantaneous speed
an invertebrate that has a segmented body, an exoskeleton, and jointed appendages
Arthropod
Newton's second law of motion equation
f=ma
the force that tends to stop the motion of one object when two solid surfaces in contact are moving past one another
Kinetic friction
law stating that it is not possible to create or destroy energy and that energy can only transformed into different forms
Law of conservation of energy
the combination of all the forces acting on an object.
net force
a depression on the surface of a planet or moon caused by impact with the meteroite, an astroid, a comet, or another object in space
crater
what is conserved in an elastic collision
momentum and kinetic energy
the path of motion of a thrown object
parabola
what two measurements are needed to calculate average speed
distance traveled and the time elapsed
What is the difference between contact and noncontact forces?
contact forces can only affect objects that are touching the source of the force.
The moment between the solstices when Earth moves into a position where neither end of Earth's axis points toward or away from the Sun and the length of a day and night are equal
equinox