Tech and Innovation
What does "HTML" stand for in web design?
HyperText Markup Language.
What organelle is responsible for cellular respiration?
The mitochondrion.
What is the chemical formula for glucose?
C6H12O6.
What is the formula for calculating speed?
Speed = distance ÷ time.
Solve for x: 5x+2 = 12
x=2.
What is the main function of a CPU in a computer?
To execute instructions (process data).
What is the primary role of tRNA during protein synthesis?
To deliver amino acids to the ribosome.
What is the term for the energy required to start a chemical reaction?
Activation energy.
What is the SI unit for power?
Watt (W).
What is the slope of the line passing through the points (1, 2) and (3, 6)?
m=2.
What is the difference between hardware and software?
Hardware is the physical components of a computer, while software is the programs and operating systems.
What is the difference between mitosis and meiosis?
Mitosis results in two identical daughter cells, while meiosis produces four genetically different gametes.
Explain why atomic radius decreases across a period in the periodic table.
Increased nuclear charge pulls electrons closer to the nucleus, reducing atomic size.
Explain the difference between series and parallel circuits.
In a series circuit, the components are connected end-to-end, so the current flows through each component one after the other.
In a parallel circuit, the components are connected across the same voltage source, providing multiple paths for the current.
Solve the quadratic equation x2-6x+8=0.
x=2 and x=4.
What is the name of the network of physical devices connected to the internet, often abbreviated as IoT?
Internet of Things.
Explain the process of natural selection and its role in evolution.
Natural selection is the process where organisms with traits better suited to their environment survive and reproduce, passing on those traits to future generations.
Calculate the pH of a 0.001 M HCl solution.
pH = 3.
What is the term for the phenomenon where a wave bends around an obstacle?
Diffraction.
Find the inverse of the function f(x) = 3x-2 .
f-1(x) = x+2/3
Explain the purpose of a loop structure in Visual Basic.
A loop structure is used to execute a block of code repeatedly until a specific condition is met.
Describe how the structure of the phospholipid bilayer relates to its function in the cell membrane.
The phospholipid bilayer has hydrophilic heads that face outward and hydrophobic tails that face inward, creating a semi-permeable membrane that controls the movement of substances into and out of the cell.
How does the presence of a catalyst affect the activation energy of a reaction?
A catalyst lowers the activation energy, increasing the rate of the reaction.
A car accelerates from rest at 3 m/s². How far does it travel in 5 seconds?
37.5 m.
solve for x in this equation: 2log2(x) = 6
x = 8