# Shared Flashcard Set

## Details

science final
~
29
Science
01/12/2012

Term
 List the steps of the scientific method in order and give their definition
Definition
 1.) problem/question- develope a question or problem that can be solved.2.) observation/research- make observations and research your topic of interest.3.) Formulate a hypothesis- predict a possible answer to the problem or question.4.) experiment- develop and follow a procedure.5.) Collect and analyze results- modify the procedure, confirm the results.6.) conclusion- include a statement that accepts or rejects the hypothesis
Term
 what is a control? what is a variable?
Definition
 The control variable is something that is constant and unchanged in an experiment.variable is something that changes in an experiment
Term
 What happens at each of the R.A.C.E method?
Definition
 restate. analyze, cite data, expand/error
Term
 time
Definition
 seconds. s
Term
 distance
Definition
 meters. m
Term
 mass
Definition
 kilogram. kg
Term
 volume
Definition
 cubic meter. m³
Term
 density
Definition
 kilogram per cubic meter. kg/m³
Term
 velocity
Definition
 meter per second. m/s
Term
 acceleration
Definition
 meter per second squared. m/s²
Term
 force
Definition
 newton. N
Term
 work
Definition
 joule. J
Term
 power
Definition
 watt. W
Term
 energy
Definition
 joule. J
Term
 momentum
Definition
 kg•m/s
Term
 what does cm²? cm³?
Definition
 is the area or volume of something
Term
 what is water displacement?
Definition
 Water displacement is a method of measuring an object's volume. Water displacement demonstrates the idea that matter has volume
Term
 what is density? how do you figure out density?
Definition
 Density is how much mass a material has for a given volume. *mass divided by volume
Term
 define velocity? how is it different than speed?
Definition
 The speed of something in a given direction. Speed is the rate of motion, but does not contain an element of direction.
Term
 what does constant velocity mean?
Definition
 Neither speed nor direction of motion changes.
Term
 what are displacement vectors?
Definition
 represents the length and direction of that imaginary straight path.
Term
 define terminal velocity?
Definition
 Terminal velocity is a state where the force of drag and the force of gravity acting on an object are equal.
Term
 define acceleration (positive and negative)
Definition
 an object whose speed increases as it moves away from its orginial starting position. Acceleration in a direction opposite to the velocity, or in the direction of the negative axis of a coordinate system.
Term
 Define force?
Definition
 a push or pull
Term
 what are newton's three laws? examples.
Definition
 first-An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.second- Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).third- For every action there is an equal and opposite re-action.skateboarder hitting a rockkicking a soccer ball then kicking a wall needed more forcerocket pushing on ground while ground pushes back
Term
 define momentum?
Definition
 force or speed of movement; impetus, as of a physical object or course of events
Term
 deine gravity?
Definition
 the force of attraction by which terrestrial bodies tend to fall toward the center of the earth
Term
 describe free fall?
Definition
 any motion of a body where gravity is the only force acting upon it
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