Biology
What is the powerhouse of the cell?
Mitochondria
What is the bonding between non-metals and metals?
Ionic bonding
Give 2 reasons why braking distance may increase.
Road surface, tyre condition, etc.
Simplify:
x8 * x3
x11
What are the 3 types of plate boundary?
Constructive, Destructive, Conservative
What are the 3 organelles found in plant cells that aren't found in animal cells?
Vacuole, Cell Wall, Chloroplasts
What is Avogadro's constant? (Bonus 100 if you get the number)
The number of particles in one mole (6.02*1023)
Which componentlimits the flow of current?
Resisitor
A line passes through the points A and B
A = (2,10)
B = (4,18)
What is the gradient of the line?
4
What 3 things are measured within HDI?
GNI per capita, Education Levels, Life expectancy
What are the 4 limiting factors of photosynthesis?
Light intensity, CO2 concentration, Temperature, Water availability
What happens to reactivity in group 1, and in group 7?
Increases going down group 1
Decreases going down group 1
What does Newton's 3rd law state?
Each action has an equal and opposite reaction
What is the surface area of a cube with a height of 2cm?
24cm2
What dictates the direction of longshore drift?
Prevailing wind
What are the 2 roles of bile?
Neutralises stomach acid, emulsifies fats
Which scientist developed the Plum Pudding model?
J.J. Thompson
Why does an elastic material become inelastically deformed?
Passed limit of proportionality
Solve the simultaneous equations:
4x + 3y = 18
x - 3y = 17
x = 5
y = -2/3
What are the 4 layers of the rainforest?
Emergent, Canopy, Understory, Forest floor
What happens to glucose when blood sugar is to high?
Liver converts glucose into glycogen
Which element conducts electricity despite being a non-metal?
Graphite
What is the process by which unstable nuclei lose energy by emitting radiation?
Radioactive decay
What is the nth term of this sequence?
1,1,2,3,5,8,13
Fn = Fn-1 + Fn-2
Name 3 countries beginning with the letter 'V'.
Venezeula, Vatican City, Vanuatu