Physics
Name the process that is used to obtain water from aqueous sodium chloride.
Simple Distillation
State the balanced symbol equation for photosynthesis.
Equal sign must be changed to left and right direction sign.
Give the purpose of encryption.
Make the data meaningless
Define the term hidden curriculum
attitudes and behaviour that are taught through the way the school is run and how teachers act, rather than through the taught content of a lesson.
Define specific heat capacity.
Energy transmitted per unit mass per unit temperature change, thermal energy transferred per unit temperature change.
State the effect on the position of equilibrium when a catalyst is used.
No effect.
State the name of the hormone that stimulates a follicle to be fully developed.
FSH
Describe the difference between the internet and the world wide web.
Internet is the infrastructure while the world wide web is a collection of web pages.
State the value of absolute zero in degrees celcius.
-273 degrees celcius
State the general name given to oxides that neutralise both acids and bases.
Amphoteric.
State the process by which carbon dioxide travels into the leaf from the air.
Diffusion
Give the purpose of a router in the packet-switching process.
Control the route the packet takes.
State how beta-decay changes the nucleus of an atom.
Nucleus has one less neutron and one more proton.
State the main source of each gas used in the Haber process.
Nitrogen:
Hydrogen:
Nitrogen: Air
Hydrogen: Cracking Hydrocarbons
State the term for maintaining a constant internal environment by negative feedback
Homeostasis
State one of the main characteristics of an AI system.
Stimulates intelligent behaviour
Name the galaxy that contains the Sun.
The Milky Way Galaxy
Explain the apparent unreactivity of aluminium.
Aluminium has an oxide layer which is unreactive preventing the metal from reacting further.
State the term used to describe what happens to light as it passes from the air into the cornea.
refraction
Give one characteristic of primary storage.
Directly accessed by the CPU.