true or false? the mentos and coke experiment geyser is a chemical reaction, because so many new bubbles are "made."
False
0 and 1 are the only digits a computer really uses. What is one of those digits called?
A bit
which of the engineers writes the code for apps and games?
Software engineer
8 bits make 1 byte. So how many bits are in 2 bytes?
16 bits
What is the closest star to Earth?
the sun
Both the lava-lamp tablet and the Mentos make bubbles which ONE is a real chemical reaction? Which one and why?
The fizzing tablet reacts with water to make a brand new gas.
Your game won't run, but the computer isn't broken, it did exactly what you told it. So you have one of these issues in the code.
A bug
Civil engineers trust this shape because it can't be pushed out of shape and it has the fewest sides of any flat shape.
Triangle
You flip a coin 3 times and get heads every time. What is the chance the NEXT flip is heads?
50%
How many months have 28 days?
All of them
Mentos feels perfectly smooth, yet it's the secret to the giant geyser. Explain the contradiction.
Its surface is actually covered in thousands of tiny pits (nucleation sites) where gas bubbles form all at once.
The letter A is stored as 01000001. Exactly how many bits is that and how many bytes?
You're a biomedical engineer and a patient's heart won't keep a steady beat. Name the small electronic device you'd design, and where it goes.
Pacemaker (chest)
simplify this fraction
12x/6x
2
A farmer has 17 sheep. All but 9 of them run away. How many sheep does the farmer have left?
9
(All but 9 means 9 stayed)
You want the tallest geyser. You have warm soda, cold soda, and opened soda. Which gives the biggest eruption, and which would barely fizz at all?
Warm, fresh soda erupts biggest. Flat/old soda barely fizzes
Python, JavaScript, and Scratch can all build a game. Which one lets you code without typing and which famous school invented it?
Scratch & MIT
An aerospace engineer's rocket must beat the force of gravity, which pulls down. What force from the engines must be even greater to lift off.
Thrust
solve for X
2(4x+1)=9
x=7/8
A man fell off a 50 foot building but wasn't hurt? why?
He fell off the bottom floor.
In the lava lamp, oil floats because it's less dense. So why does the food coloring sink through the oil instead of floating on it?
it's denser than oil so it sinks through and colors the water
In binary the place values are 8, 4, 2, 1. What regular number is "1 0 1 1"? (Add carefully!)
11 (8+0+2+1=11)
A suspension bridge crosses a river, but what holds its roadway up is not the water or the ground below. What holds it up?
Tall towers and steel cables
solve for X
x/3=4
12
Who discovered North America
Native Americans