8th grade Unit two Lessons 6-7

energy

• anything that is matter

• the ability to move objects or cause a change

• the net force on an object found by combining all the forces acting on it

Tags

NGSS.MS-PS3-4

ratio

• a relationship between two amounts that compares the two numbers by division

• the ability to move objects or cause change

• a unit used to measure the strength of a force

Tags

NGSS.MS-PS3-1

proportional relationship

• a force that opposes motion between touching surfaces and can be helpful or harmful depending on the situation

• the current distance and direction from a reference point

• the relationship between variables that are related by a constant ration

Tags

NGSS.MS-PS3-1

NGSS.MS-PS4-1

unit rate

• the requirements that must be met for an engineering solution to be successful

• the relationship between variables that are related by a constant ratio

• the constant ratio between variables with a proportional relationship

ray

• a straight arrow in a diagram used to represent the direction a wave travels in

• when a wave passes through the boundary between two media

• a set of connected parts that form a complex whole

Tags

NGSS.MS-PS4-2

reflection

• when a wave transfers energy to the medium it is passing through

• when a wave reaches a boundary between two media and ounces back

• when a wave bends as it is transmitted from one medium to another

Tags

NGSS.MS-PS4-2

transmission

• the acceleration of an object is equal to the net force on a an object divided by its mass

• a straight arrow in a diagram used to represent the direction a wave travels

• when a wave poasses through the boundary between two media

Tags

NGSS.MS-PS4-2

refraction

• a representation of a system or object that is larger or smaller than the object, but all parts of the object, but all parts of the object are the same relative size

• when a wave bends as it is transmitted from one medium to another medium

• when a wave reaches a boundary between two media and bounces back

Tags

NGSS.MS-PS4-2

absorption

• when a wave bends as it poasses thoguh one medium to another medium

• when a wave transfers energy to the medium it is passing through

• a representation of a system or object that is larger or smaller than the object, but all parts of the object, but all parts of the object are the same relative size

Tags

NGSS.MS-PS4-2

scale model

• a representation of a system or object that is larger or smaller than the object, but all parts of the object, but all parts of the object are the same relative size

• a set of verbal or mathematical rules to describe a natural phenomenon; unlike scientific theories, scientific laws do not explain the phenomenon

• a unit used to measure the strength of a force

Tags

NGSS.MS-ETS1-4