Science Inter Quiz

Phys

100

What does the Kelvin temperature scale use as its zero point?

Absolute zero (-273.15 C)

200

What is the relationship between wave speed, frequency, and wavelength

v = f × λ 

300

In a circuit, how does current behave in a series circuit vs a parallel circuit

Same in series, splitting in parallel

400

What rule is used to determine the direction of the force on a current-carrying conductor in a magnetic field

Right hand palm rule/right hand slap rule

500

Which law describes the induced EMF being proportional to the rate of change of magnetic flux, with direction opposing that change

Faraday's/Lenz's Law of Induction

Chem

100

Which term describes a reaction where reactants combine to release energy to the surroundings

Exothermic

200

What 3 major trends occur when moving right and up across the periodic table

Increase: electronegativity, ionisation potential

Decrease: atomic radii

300

What is the empirical formula of a compound with molecular formula C₆H₁₂O₆

CH₂O

400

What gas law states that pressure and volume are inversely proportional at constant temperature?

Boyle's Law

500

What factors affect the rate of reaction (full points only if all major factors are mentioned)

Catalyst, surface area, concentration, temperature, pressure, reactivity of reactants

Bio

100

Define structural differences between the xylem and phloem

Xylem: composed of dead cells, hollow continuous tube

Phloem: composed of living cells, compartmentalised by sieve plates

200

Define the difference between open and closed circulatory systems

Open systems lack blood vessels to separate blood from other fluids, and as such bathe organs with haemolymph

Closed systems require more energy to function, but provide greater more effective nutrient and waste transport as it maintains pure blood 

300

Define speciation and atleast 2 types of it (bonus 100 if you can get all 4) 

The genetic/geographic isolation of a population which catalyses the formation of new and distinct species

Types:

Allopatric, sympatric, parapatric, peripatric

400

^{What are the three primary components of aerobic respiration?}

Glycolysis, Kreb's Cycle (Citric Acid Cycle), Oxidative Phosphorylation 

500

What common premises are shared between all theories of evolution

^{1. Common ancestry exists, leading to similarities between organisms}

^{2. Changes over time causes differences between organisms}