Physics
Chemistry
Biology
Computer Science
Sociology
100
A load suspended from a thread. The vertical force on the thread due to the load is 0.75 N. Calculate the mass of the load. (Take weight as 9.8 m/s)


0.077 kg
100

Name the process that is used to obtain water from aqueous sodium chloride. 

Simple Distillation

100

State the balanced symbol equation for photosynthesis. 

C6H12O6 + 6O2 = 6CO2 + 6H2O

Equal sign must be changed to left and right direction sign. 

100

Give the purpose of encryption. 

Make the data meaningless

100

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. 

200

Define specific heat capacity. 

Energy transmitted per unit mass per unit temperature change, thermal energy transferred per unit temperature change. 

200

State the effect on the position of equilibrium when a catalyst is used. 

No effect. 

200

State the name of the hormone that stimulates a follicle to be fully developed. 

FSH 

200

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. 


300

State the value of absolute zero in degrees celcius. 

-273 degrees celcius

300

State the general name given to oxides that neutralise both acids and bases. 

Amphoteric. 

300

State the process by which carbon dioxide travels into the leaf from the air. 

Diffusion

300

Give the purpose of a router in the packet-switching process. 

Control the route the packet takes. 


400

State how beta-decay changes the nucleus of an atom. 

Nucleus has one less neutron and one more proton. 

400

State the main source of each gas used in the Haber process.

Nitrogen:
Hydrogen:

Nitrogen: Air

Hydrogen: Cracking Hydrocarbons


400

State the term for maintaining a constant internal environment by negative feedback

Homeostasis

400

State one of the main characteristics of an AI system. 

Stimulates intelligent behaviour

500

Name the galaxy that contains the Sun. 

The Milky Way Galaxy

500

Explain the apparent unreactivity of aluminium. 

Aluminium has an oxide layer which is unreactive preventing the metal from reacting further. 


500

State the term used to describe what happens to light as it passes from the air into the cornea. 

refraction


500

Give one characteristic of primary storage. 

Directly accessed by the CPU. 

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