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Physics - Energy Changes, Newtons Laws & Forces and Motion

Bronty Fraser Inglés 10 fichas

Fichas del conjunto (10)

1Gravitational Potential Energy - what does it depend on?depends on height, mass, strength of gravitational field
2Conversion from km/h to m/skm/h to m/s = divide by 3.6
m/s to km/h = times by 3.6
3Delta change and Sum of the change symbolsDelta change = triangle
Sum of the change = the weird E thing
4Newtons Third LawTo every action there is an equal and opposite reaction
5Mass, weight and gravity definitionsMass: 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
6Newtons Second Law - definition and equationThe 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
7Newtons 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"
8Efficiency equationEfficiency = useful energy output/total energy output X 100
(usually as percentage)
/ = divide by
9Chemical and Elastic Potential Energy definitionsChemical: 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
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