package deal of OCR.

- Sn = n/2 (2a + (n-1)d) - Sn = n/2 (a + l) where a is the first term and l is the last term - correct answer formula of an arithmetic series the sum of the terms of an arithmetic sequence - correct answer what is an arithmetic series - Un = a + (n-1)d - a = the first term - d = the common ...

What is the purpose of systems software? - correct answer Software designed to run or maintain a computer Describe the functionality of systems software. - correct answer It controls the operations of computer hardware What is an operating system? - correct answer A piece of software responsib...

what is water of crystallisation? - correct answer water molecules that make up part of the crystal structure of a solid define relative isotopic mass - correct answer the ass of an atom of an isotope of an element relative to one twelfth the mass of an atom of C-12 why is relative atomic mass...

Moray: Research Method - correct answer Laboratory Experiment Moray: Experimental Design - correct answer 1. Repeated Measures 2. Independent Measures 3. Repeated Measures Moray: Independent Variables - correct answer 1. Dichotic Listening Test, recognition test 2. Instructions prefixed by ...

why do specimens need to be thin when observing them under a light microscope? - correct answer to allow light to pass through identify and explain the starch test - correct answer add iodine dissolved in potassium iodide solution to the sample - positive test = blue-black - negative test = ora...

Abiotic components - correct answer Components of an ecosystem that are non living Abiotic factors - correct answer Non living components of an ecosystem that effect other living organisms Acetycholine - correct answer Chemical that acts as a transmitter that diffuses across synaptic cleft ...

Syntax -correct answer the grammatical arrangement of words in sentences (subject, verb, object, etc.) Polysemic -correct answer A word with more than one meaning collocation -correct answer Words which are regularly used together (e.g. 'fish and chips' and 'back to front) Compound -corr...

Stakeholder - correct answer Anyone with an interest in the success of the business. can b internal e.g. employees or external e.g. customers. Accountability - correct answer the obligation of an individual or organisation to account for their activities and accept responsibility for them. SMA...