Physics - Energy Changes, Newtons Laws & Forces and Motion

Frage	Antworten
Gravitational Potential Energy - what does it depend on?	depends on height, mass, strength of gravitational field
Conversion from km/h to m/s	km/h to m/s = divide by 3.6 m/s to km/h = times by 3.6
Delta change and Sum of the change symbols	Delta change = triangle Sum of the change = the weird E thing
Newtons Third Law	To every action there is an equal and opposite reaction
Mass, weight and gravity definitions	Mass: a measure of the amount of matter in an object MASS DOES NOT CHANGE AS A SUBJECT MOVES THROUGH A UNIVERSE Weight: a measure of the force due to gravity on an object WEIGHT DOES NOT VARY THROUGHOUT THE UNIVERSE Gravity: pulls things around the sun GRAVITY GETS LESS AS YOU MOVE FURTHER AWAY FROM A PLANET OR MOON
Newtons Second Law - definition and equation	The size of the acceleration depends on the mass of the object and the size of the force. "A net external force acting on a mass will result in it being moved" F=ma
Newtons First Law (Inertia)	Every object continues in its state of rest or uniform motion until acted upon by and external unbalanced force "things keep going until an unbalanced force acts upon it"
Efficiency equation	Efficiency = useful energy output/total energy output X 100 (usually as percentage) / = divide by
Chemical and Elastic Potential Energy definitions	Chemical: energy stored in the chemical bonds of a fuel Elastic: energy stored in a stretched or compressed object due to the position of the particles

Zusammenfassung der Ressource

	Erstellt von Bronty Fraser vor etwa 7 Jahre