Science and Engineering Practices
Describe a closed system
What is weight
A measurement of the amount of gravity acting on an object.
What causes all waves
An oscillation: a repeated pattern of motion
What do you call the points where a substance transitions between a liquid and a solid?
When heating up – Melting point
When cooling down – Freezing point
What do you call the substance that is dissolved?
solute
What do you call anything that leaves a system
Output
Describe Inertia
What do you call the high and low point on transverse wave?
Crest- High
trough- low
What is a solvent?
A substance that dissolves the other substance
Describe a molecule
two or more elements that are chemically combined
What variables does an investigative question include
Responding variable
What is a net force and what does it determine
Sum of all forces acting on the object
Determines how the object moves
What is thermal energy
Energy some thing has because of amount of kinetic energy in the atoms and molecules of a substance.
A pure substance is......
Something with only one type of matter (element or molecule)
What are chemical properties
The ways in which a substance reacts with other substances.
What is the variable that is purposely changed called
Manipulative variable(Independent)
What is gravity
The force of attraction between two objects with mass.
What is the law of reflection?
Angle of incidence =
Angle of reflection
Describe the states of matter in terms of particle motion and location relative to each other?
solids-fixed together and vibrating
liquids-in contact and freely moving
gases-freely moving and not in contact
What type of field does electricity produce ?
magnetic
What do you call the variable being measure and recorded
Responding variable
What is Newtons 2nd law of motion
The acceleration of an object is determined by its mass and the force acting on it
How would you describe reflection?
The bouncing back of wave energy without being absorbed
How does the periodic table organize the elements?
By atomic structure
and
element properties