Math
What is 15% of 80?
12
What is the name of the process used to make parts using layers of material?
3D printing (or additive manufacturing)
What is the chemical symbol for sodium?
Na
What is HTML used for?
building websites
How many bones are in the adult human body?
206
If 5x – 7 = 18, what is x?
5
Which engineering field focuses on designing machines with moving parts?
mechanical engineering
Which organ is responsible for filtering toxins from the blood?
Liver
What does “bit” stand for in computing?
binary digit
What part of the brain controls balance?
cerebellum
Convert the fraction 5/8 into a decimal.
0.625
What is the term for a material that can return to its original shape after being stretched or compressed?
Elasticity
What is the powerhouse of the cell?
Mitochondria
Which coding language is often used for data science and machine learning?
python
What type of energy is stored in food?
chemical
A triangle has angles of 50° and 60°. What is the measure of the third angle?
70 degrees
What does a turbine do in a power plant?
convert fluid (steam/wind/water) movement into mechanical energy
What two particles are found in the nucleus of an atom?
protons and neutrons
What does RAM stand for?
Random Access Memory
What famous equation explains the relationship between energy and mass?
E = mc²
The formula for the volume of a cylinder is πr²h. What is the volume of a cylinder with radius 3 cm and height 10 cm? (Use π ≈ 3.14)
282.6 cm³
What is the purpose of a capacitor in a circuit?
store and release electrical energy
What kind of bond involves sharing electrons between atoms?
covalent
What is the difference between hardware and software?
Hardware is the physical parts of a computer; software is the programs and code.
What is the difference between velocity and speed?
Velocity includes direction, while speed does not