Final Review 12/14/13 Flashcards
Correct
Accuracy
Whenever one object exerts a force on another, the second object exerts an equal and opposite force on the 1st.
Newton’s 3rd law
Repeat
Precision
The resistance of a body to change its state of motion
Inertia
The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass
Newton’s 2nd law
The amount so matter an object has;a measure of an objects’ inertia ; measured in grams or kg
Mass
The total momentum of interacting objects equals the total momentum afterwards
Conservation of momentum
Occur when two or more objects hit each other.
Collision
Energy that comes from motion
Kinetic
A unit for work or energy
Joule
A force created by gravity acting on mass
Weight
A quantity that has both magnitude and direction
Vector
Occur when the force son an object one balance and net force =o;in harmonic motion, undistrubed
Equilibrium
A single vector that is the sum of a group of vectors.
Resultant vector
The metric unit of force
Newton
An object in orbit around another object with gravity provided the centripetal force
Satellite
A regular repeating path that an object in space follows around another object caused by the influence of gravity
Orbit
To move around, or orbit, an external axis
Revolve
The curved path a projectile follows
Trajectory
The effect of inertia on an object to moving in a curve;is not a true force;”apparent”
Centrifugal
The point at which an object naturally spins
Center of mass
To spin around an axis of rotation that passes through an object
Rotate
The distance a projectile travels horizontally
Range
A force that causes an object to move in a circle
Centripetal
A property of a substance that tells us how much heat is needed to raise the temp of one kg by 1’C
Specific heat
The branch of physics that deals with heat and energy
Thermodynamics
The lowest possible temp where molecules have the lowest energy they can have; 0 K on the temp scale
Absolute zero
The movement of heat or electricity through something without moving it
Conduction
The measurement of kinetic energy of individual atoms
Temperature
The expansion of material with an increase in temp and the contraction with a decrease in temp
Thermal Expansion
An apparatus for measuring the amount of heart involved in a chemical reaction or other process
Calorimeter
the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Convection
the emission of energy as electromagnetic waves or as moving subatomic particles, esp. high-energy particles that cause ionization.
Radiation
The kinetic theory of gases describes a gas as a large number of small particles (atoms or molecules), all of which are in constant, random motion. The rapidly moving particles constantly collide with each other and with the walls of the container.
Kinetic molecular theory
