physical science Flashcards
Radiation
Heat traveling through the sun
Convection
Heat traveling through air/space or a liquid
Conduction
Heat traveling through touch
Physical properties
Things that can be noticed by senses
Physical change
When you change the shape, color, etc.
Chemical properties
Properties of a substance that are only observable during a chemical reaction
Chemical changes
When you change the chemical property of an object
Average speed
how far an object moves during a certain amount of time
Velocity
The speed of something in a given direction
Friction
A force that occurs when 2 objects rub against another
Newton’s first law
Objects at rest stay at rest, objects in motion stay in motion.
Newton’s second law
If there is 2 unbalanced forces, there will be motion. If there is 2 balanced forces, there will not be any movement
Newton’s third law
Every action has an equal and opposite reaction
Force
A push or a pull
