Better energy Flashcards
What is kinetic energy?
All moving things
Formula for energy and work
a dog WFS
Formula for weight and mass
W iggly M assey G rows
Formula for gravitational potential energy
Eg G M c H am
Formula for Kinetic energy
E very 0.5M V elocity squares
Formula for velocity
V=distance/time
Formula for elastic potential energy
E very 0.5
K ids E vaporate twice
Formula for efficiency
Useful output/total input
Formula for power
E very P lanet T urns
What does W stand for? Energy and work
Work
What is W measured in
Joules
What does F stand for?
Force
What is F measured in
Newtons
What does s stand for
Distance
What is s measured in
meters
What does w stand for? Weight and mass
Weight
What is w measured in
newtons
What does m stand for
Mass
What is mass measures in
Kg
What does g stand for
Gravitational field strength
What is g measured in
N/kg
What is gravity on earth
9.8 N/Kg
What does Eg stand for
gravitational potential energy
What does h stand for
Height
What is height measured in
Meters
What does Ek stand for
Kinetic potential energy
What does v stand for
Velocity
What is velocity measured in
M/s
What does Ee stand for
Elastic potential energy
What does k stand for
Spring constant(how easy it is to stretch higher the number the less stretchy
What does k measure in
N/m
What does e stand for
Extension
How do you measure e
Meters
What does p stand for
Power
what is p measured in
Watts
What is the principle of conservation of energy
Energy cannot be created or destroyed only transferred
What are the 4 transfers of energy
Mechanical working
Electrical working
Heating by particles
Heating by radiation
What is mass
measuring amount of physical material of an object
What is weight
Is measuring the force from gravity
What is GPE
energy stored in an object by its position above the ground
What is kinetic energy
Is the energy stored by an objects movement
What is elastic potential energy
The stretch of sn object
What is power
Power is a measured of how quickly energy is transferred
