other lessons Flashcards
not gate notation
¬
not gate symbol
right-facing triangle with a circle
and gate notation
∧
and gate symbol
half rectangle half circle
or gate notation
V
or gate symbol
a pointed and gate with a curved flat line
two categories of data compression
lossy and lossless
flowchart decision symbol
equilateral diamond
flowchart process symbol
rectangle
flowchart input/output
rhombus
what is abstraction
filtering out unnecessary information
what is decomposition
breaking down a problem into simpler parts
what is pattern recognition
finding similar characteristics among the same and other problems
what is an algorithm
a list of step by step instructions to solve a problem
what are the four components to computational thinking
abstraction
decomposition
pattern recognition
algorithms
what is computational thinking
a way of thinking to solve a complex problem
the equation for the sum of interior angles of any polygon
(n - 2) * 180
where n = number of sides
the equation for a line
y = mx + c
equation for quadratic sequence
2a = {2nd set of arrows}
c = {0th term}
a + b + c = {1st term}
an˄2 + bn + c
Where is bile produced
Liver
What does bile emulsify
Fats
Another word for breaks down
Emulsifies
Give the two finctions of bile
Emulsifies fats and neutralises stomach acid
Do saturated hydrocarbons have a double bond
No
Do alkanes or alkenes have a double bond
Alkenes
Give the general formula for alkanes
C H
n 2n+2
Give the general formula for alkenes
C H
n 2n
What is the test for alkenes
Turns orange bromine water colourless
What is the prefix for each alkæne
Monkeys Eat Peanut Butter
Methane | Eth | Prop | But
Words for the increase / decrease of electrons
Oxidation
Is
Loss
Reduction
Is
Gain
How to find the number of protons or electrons
They’re the same as the atomic number
How to find the number of neutrons
Minus the mass and atomic number
Which one is the atomic number
The smaller one, goes up in increments
Which is the mass number
The bigger one on top
Which group are alkalis in
Group 1
Which group are halogens in
Group 7
What is the order of cells in a reflex arc
Receptor, sensory, relay, motor, effector
see page 16
Where is FSH produced
Pituitary gland
see page 21 for more
Find side on right angle triangle with a side and an angle
Use SOH CAH TOA and make O, A or H the subject
Calculate an angle on a right angle triangle with two sides
Use SOH CAH TOA with the inverse sin/cos/tan
Find the hypotenuse of a 3D triangle with sides
Square root of x2 + y2 + z2
Sine rule
sinA / a = sinB / b = sinC / c
where each lowercase letter is the opposite side to it’s uppercase angle
What type of triangle is the sine and cosine rule used for
Non right angle triangles
When to use sine or cosine rule
For any triangle:
Sine with 2 sides and 2 angles
Cosine with 3 sides and 1 angle
Which months are Q1
Jan, Feb, Mar
Which months are Q2
Apr, May, Jun
Which months are Q3
Jul, Aug, Sep
Which months are Q4
Oct, Nov, Dec
What is the area of a trapezium
(a + b) / 2 * h
where a and b are parallel
What are the two biological ways to extract metals
Bioleaching and phytomining
Do unsaturated hydrocarbons have a double bond
Yes
What are receptor cells
Cells that detect a change in the environment and produce electrical impulses
What do sensory neurones do
Send electrical impulses from receptor cells to a relay neurone
What do relay neurones do
Connect sensory and motor neurones together
What do motor neurones do
Send electrical impulses to the effector
What do effector cells do
Produce a response
Give 2 examples of effectors in reflex arcs
Muscles or glands
What is ✔️x times ✔️x
x
What is ✔️x to the 3rd power
x✔️x
What do you do for y✔️x - z✔️x
Minus y and z, keep ✔️x the same
Equation for photosynthesis
Carbon dioxide + water —> glucose + oxygen
Chemical formula for glucose
C H O
6 12 6
What does amylase emulsify
Starch into glucose
Where is bile produced
Made in the liver and stored in the gall bladder
What does the gall bladder store
Bile
Give 2 functions of bile
Neutralises stomach acid
Emulsifies fats
What does protease emulsify
Protein into amino acids
What does lipase emulsify
Lipids into fatty acids
Give 2 enzymes the pancreas produces
Protease
Lipase
Define current
The speed (flow) of electrons around a circuit
Define resistance
Anything that slows down the current
Define voltage
Anything that pushes the current forward
Units for potential difference
Volts (V)
Units for resistance
Ohms (Ω)
Units for current
Amps (A)
Equation linking current, resistance and voltage
V = IR
4 factors affecting resistance through a conductor
Length, thickness, material, temperature
Equation for power including work done
Power = work done / time
Equation for power discluding work done
Power = voltage / current
Units for power
Watts (W)
