If you are facing West, and then turn 90 degrees to your left, which direction are you facing?
Which of the following is the hottest?
The Sun's Surface
A cold object ("Object A") is placed in direct contact with a hot object ("Object B"). Both objects are otherwise identical. After 60 minutes, which of the following will be true? Ignore heat transfer to the environment.
Both objects will be as hot as Object B initially was
Both objects will be the same temperature, about the average between the two initial temperatures
Both objects will be as cold as Object A initially was
Their temperatures will remain the same as they started
Assume C=A*B, C must be at least 65536, and A must be at least 512. Pick the value pairs for A and B to satisfy this condition.
A = 1024, B = 64
A = 128, B = 8192
A = 4096, B = 8
A = 65536, B = 0
A = 2048, B = 128
A = 512, B = 16
C = A*B. If A is multiplied by four and B is divided by eight, what is the new value for C?
One quarter its original value
Eight times smaller
Twice as large
Half the original value
Check all of the phrases which mean the exact same thing.
Object A is twice the mass of object B.
Two of object A would equal the mass of object B.
Object B is half the mass of object A.
If object A was doubled in mass, object B would be four times smaller than A.
Half the mass of object B is equal to one eighth the mass of object A.
Object A is 200% the mass of object B.
Which of the following mathematical relationships grows the fastest?
Logarithmic (y = log[x])
Linear (y = x)
Which of the following is the most likely result of dramatically heating gas in a rigid container which has no exit?
If the time taken for a machine to do something reduces by 4 seconds every time the input speed is doubled, and it takes 28 seconds with an input speed of 128 rad/s, how fast must the input speed be for the time taken to be 4 seconds?
Which of the following are correct?
If a fair coin is flipped, and it has landed "Heads" the last eight times, it has a 50% chance of landing "Tails" the ninth time.
If something has a 50% chance of happening, and it is given four chances to happen, it will happen exactly twice.
If a number of marbles are randomly scattered around the floor, they will be approximately evenly spaced.
If something has a 2% chance of happening, and it is given a chance to happen every 0.05 seconds, it will have at least a 95% chance of happening within 7.5 seconds.
A random number generator, which outputs numbers from 1 to 10 (inclusive) outputs "10" eleven times in a row. It has a very low chance (less than 1%) of outputting "10" the next time.
It is possible for something to have a 99.99% chance of happening yet fail to do so after 400 chances.
If an engine uses 5400 units of fuel an hour, how many units of fuel do you need to ensure its steady operation for at least 40 seconds?
Lava is about the right temperature for boiling water.
A jet engine would function mostly normally on the moon.
Temperatures are greater deeper underground than near the surface.
A large disc is made of a uniform material and then spun at gradually increasing speed. Which of these materials is likely to fail first?