technology
What does RGBA stand for?
Red, green, blue, alpha
name a famous physicist
e.g. Einstein, Curie, Newton, Hawking, Chien-Shiung Wu
what element is represented by H
Hydrogen
How can you tell the age of a tree?
By counting its ‘growth’ rings
What is the longest side of the right-angle triangle called?
hypotenuse
What is a fixed-point number?
A number that can only have a certain amount of figures, e.g. 0020.0100
what is the law of conservation of energy
"Energy cannot be created nor destroyed" (seniors will decide if you're close enough)
which metal is liquid at room temperature?
Mercury (melting point of -38.9°C). Gallium gets close, with a melting temperature of 29.8°C (room temperature is 25°C).
The process by which green plants and certain other organisms transform light energy into chemical energy.
what is 112
121
Which is larger, Gigabyte or Gigabit
Gigabyte
what is the acceleration of gravity?
9.81m/s
what are the first 10 elements?
H, He, Li, Be, B, C, N, O, F, Ne
what does CNS stand for?
Central Nervous System
which letter represents the non-real value: √-1
i
How do digital cameras work?
Light enters the camera lens and reaches an image sensor, which then creates image data
what is the speed of light?
3x10^8 m/s (3 hundred million)
what is Avogadro's number
6.0221×1023
How many bones are in an adult human body?
206
What is the factorial of 5 (written as 5!)
120
What processer architecture do smartphones typically use?
ARM
what are newtons 3 laws - define them
1. inertia - an object in motion will stay in motion unless an unbalanced force is applied upon it
2. acceleration - F=ma - the change in velocity of an object
3. action-reaction - every action has an equal and opposite reaction
Einsteinium.
What do cell walls do in plant cells?
It provides the cell with structural support, shape, protection, and functions as a selective barrier.
What is the 7th Fibonacci number?
13