Solutions to Engineering Design problems

Scientific Method

100

Hypothesis 

Educated Guess

200

The word "Iterate" means to 

IMPROVE

300

Brainstorm means 

to come up with ideas 

400

Can your hypothesis be wrong ?

YES

500

What is a tradeoff ?

When one thing is traded for the other. Ex. calories for flavor in a new ice cream flavor 

Independent vs Dependent Variables

100

The "CAUSE"  is which variable 

INDEPENDENT

200

The "EFFECT" is which variable ?

DEPENDENT

300

Which variable is the one being changed or manipulated ?

INDEPENDENT 

400

Which variable is the variable responding to the change ?

DEPENDENT variable

500

the dependent variable is listed first when say it out (AKA blank depends on blank out little trick) YES OR NO 

YES

Engineering Design Process

100

What is the 5th step in the E.D.P ?

Prototyping 

200

Which step comes after brainstorming ?

Selecting the best idea/solution

300

What is the last step in the engineering process ?

communicate the solution 

400

What is the first step in the engineering design process ?

Define the problem 

500

List all of the steps in the engineering design process.

1. Define problem

2. Identify constraints 

3. Brainstorm

4. Select the best possible idea

5. Prototype 

6. Test and Evaluate Prototype

7. Iterate Prototype

8. Communicate solution 

List the IV, and the DV

100

A mosquito repellent was used on one arm and not the other. Mosquito bites were recorded. What are the DV, and IV

IV: mosquito repellent

DV: mosquito bites 

200

A bean plant's height depends on how much water it receives. What is the DV, and IV ?

IV: amount of water

DV: plant's height 

300

A growth hormone was given to one cow, and was NOT given to another cow. Their weight was recorded after. What is the DV, and IV

IV: growth hormone

DV: Cow's weight 

400

Different gasoline was used to determine the amount of pollution each car emits. What is the DV, and IV ?

IV: type of gasoline

DV: amount of pollution 

500

Some students were given chrome books, and some students were NOT. Their # of assignments turned in was recorded. What is the DV, and IV ?

IV: Students having chrome books or not

DV: # of assignments turned in 

Overall/Random

100

What is the 6th STEP in the E.D.P ?

Testing and Evaluating your Prototype 

200

How tall is Mr. Conway ?

6'0

300

Write an example of a trade- off 

Answers will vary 

400

What are the names of Mr. Conway's cats ?

Pretzel and pepper

500

What are the names of the 2 types of variables ?

Independent and Dependent