Scaling Lab Check-Up

Which of the following are most affected by changing the surface area of an object?
1. Weight
2. Drag Force
3. Inertia
4. density
Which of the following is most affected by a change in volume?
1. Weight
2. Density
3. Air Resistance
4. Heat loss
Why does an elephant have big ears?
1. To swat flies!
2. To balance his tail.
3. To balance his trunk
4. To cool off
A "Mad Scientist" gives you a chemical that makes you proportionally increase in size by a factor of 3 (all dimensions increase times 3). Which of the following are true?
1. Your surface area increases by a factor of 6.
2. Your surface area increases by a factor of 9.
3. Your volume increases by a factor of 9.
4. Your volume increases by a factor of 27.
If a person is scaled up on all dimensions by a factor of 3, then your bones will have a strength that is
1. the same
2. 3 times stronger
3. 9 times stronger
4. 27 times stronger
For a giant (scaled up by a factor of 3), one of the problems that such a big person would have is that
1. The bones ( 9 times as strong) have to support weight that is 27 times as much!
2. The bones ( 3 times as strong) have to support weight that is 6 times as much!
3. The bones ( 3 times as strong) have to support weight that is 27 times as much!
4. The bones will be too long to support much weight.
In the movies, we often see where people shrink to a small size due to some magical potion or type of radiation. Which of the following would be true if you were to shrink to a scaled person 1/10 your size.
1. Your bones would be 1/10 as strong
2. Your bones would be 1/100 as strong
3. Your weight would be 1/100 as much.
4. Your weight would be 1/1000 as much.
If people were to shrink to a small size due to some magical potion or type of radiation. What would be true about such small people.
1. They would have trouble jumping because of their weight.
2. They would have less air resistance (porportional to weight) than a normal sized person!
3. They would be very strong for their size because their ratio of weight to bone strength has decreased!
4. They would be very strong for their size because their ratio of weight to bone strength has increased!
We lose heat through
1. surface area
2. bone length
3. volume
4. hair folicules
Which of the following would be true about nanoparticles?
1. Gravity does not greatly affect them.
2. They have a large surface area (proportionally) for chemical reactions.
3. They cannot float in a fluid easily.
4. They are never attracted to each other.

Scaling Lab Check-Up

Quiz