What is the region of space where an electron is most likely to be found called?
Anonymous Quiz
46%
Orbital
19%
Bohr shell
26%
Nucleus
8%
Energy level
❤1
Which brain part controls balance and motor coordination?
Anonymous Quiz
16%
Cerebral cortex
25%
Hypothalamus
48%
Cerebellum
10%
Medulla oblongata
❤1
What is Avogadro's number?
Anonymous Quiz
70%
6.022 × 10²³
18%
3.14 × 10⁸
6%
9.81 × 10²
6%
1.38 × 10⁻²³
What happens to light when it passes from one medium to another?
Anonymous Quiz
19%
Diffraction
61%
Refraction
14%
Polarisation
6%
Dispersion
What is an action potential in neurons?
Anonymous Quiz
9%
A static electrical potential
67%
A brief electrical impulse that travels along the neuron
15%
A change in membrane potential only during sleep
10%
The potential difference between two neurons
What is the main gas emitted by volcanoes?
Anonymous Quiz
19%
CO₂
38%
SO₂
40%
Water vapour (H₂O)
4%
H₂
What does calorimetry measure?
Anonymous Quiz
3%
Volume of a gas
84%
Heat exchanged in a chemical reaction or physical process
8%
Density of a liquid
6%
Electrical conductivity of a solution
Which part of DNA is translated into protein?
Anonymous Quiz
19%
Introns and exons both
12%
Introns only
27%
Exons (after splicing)
42%
Mitochondrial DNA
What is the region around a magnet where magnetic force acts called?
Anonymous Quiz
5%
Electric field
27%
Gravitational field
68%
Magnetic field
0%
Radiation field
What type of symbiosis is the relationship between sharks and pilot fish?
Anonymous Quiz
11%
Parasitism
37%
Mutualism
30%
Commensalism
23%
Predation
Media is too big
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What does Faraday's first law of electrolysis state?
Anonymous Quiz
6%
Current is proportional to voltage
79%
The mass deposited is proportional to the electric charge passed
8%
Resistance is inversely proportional to temperature
8%
EMF is proportional to the magnetic field
Which plant structure absorbs water and minerals from the soil?
Anonymous Quiz
5%
Leaves
5%
Stem
90%
Roots (root hairs)
0%
Flowers
❤1
What is surface tension?
Anonymous Quiz
8%
Internal pressure of a gas
87%
The force that tends to minimise the surface area of a liquid
4%
Viscosity of a fluid
2%
Friction between fluid layers
Which bond forms between amino acids in a protein?
Anonymous Quiz
10%
Ionic bond
78%
Covalent (peptide) bond
10%
Hydrogen bond
2%
Van der Waals bond