Science 🧬 Flashcards
What is the equation for work done ?
Work done (J)= force applied(N)=distance moved (m)
What is the equation to find gpe?
Mass (kg) x gravitational field strength( N/kg)x height (m)
What is the Equation for kinetic energy ?
0.5x mass x velocity/ speed ^2
What is the equation for efficiency?
E= useful output / total input
What is the equation for power?
Power = energy (j) / time (s)
What is specific heat capacity?
The amount of energy need to heat up 1kg of an object by 1degree
Conduction
The transfer of thermal energy in a solid
Convection
The transfer of thermal energy in a fluid (liquid or gas)
Radiation
The transfer of thermal energy without the need of particles
What are the units for thermal conductivity
Watts/ meter degrees Celsius
What is filtration?
Separate insoluble substances(solid) from soluble substances(liquid)
What is distillation?
Separation of two liquids with different boiling points (
Solvent from a solution))
What is crystallisation? (Evaporation)
separates a soluble solid from a solvent
What is chromatography?
Separate inks and dies based on solubility
What is an isotope
A version of an atom with the same number of protons and electrons but a different number of neurons ( different mass number)
