EDP, Forces, Speed, Velocity Test Flashcards
What is the Engineering Design Process?
The engineering design process is a series of steps that engineers follow to come up with a solution to a problem.
What is the 1st step for the Engineering Design Process?
DEFINE the problem/question.
What is the 2nd step for the Engineering Design Process?
IDENTIFY the constraints (time, money, materials, etc.).
What is a constraint?
a) A limitation or restriction that plays a role in completing a specific task.
b) A condition that needs to happen for a project to be successful.
What is the 3rd step for the Engineering Design Process?
BRAINSTORM solutions for the problem.
What is the 4th step for the Engineering Design Process?
SELECT the most promising solution.
What is the 5th step for the Engineering Design Process?
PROTOTYPE your solution (build a working model).
What is the 6th step for the Engineering Design Process?
TEST and EVALUATE your prototype.
What is the 7th step for the Engineering Design Process?
ITERATE to improve your prototype (Repeat the process to find a solution to the problem).
What is the 8th step for the Engineering Design Process?
COMMUNICATE your solution.
Remember DIBSPTIC:
Define
Identify
Brainstorm
Select
Prototype
Test and Evaluate
Iterate
Communicate
What is force?
A push or pull.
What are the two types of forces?
Unbalanced and Balanced.
What are unbalanced forces?
A force acting on an object that changes the object’s motion.
Unbalanced forces fact:
Unbalanced forces cause objects to start moving, stop moving, or change direction.
What are balanced forces?
Forces acting on an object that will not change the object’s direction or motion.
Balanced forces fact:
Balanced forces are forces that are actively happening at the moment.
What is net force?
The overall (resulting) force on an object after all forces add together.
Forces fact:
Forces may also be categorized: electrical, applied, gravitational, magnetic, spring, tension, frictional, air resistance, and normal.
What is Speed?
The distance an object travels in one unit of time.
Two ways to calculate Speed, Distance, or Time:
T - Circle or T - Triangle.
Distance =
Speed x Time
Time =
Distance/Speed
Speed =
Distance/Time
Remember:
_______D_______
____S_____T____
D = S x T
T = D/S
S = D/T
SI - International System of Units =
The metric system.
The slash (/) is read as:
“per”.
SI fact:
The standard SI (metric system) unit for speed is meters per second (m/s).
Common units for speed are:
Kilometers per hour (km/hr) and miles per hour (miles/hr).
What are some examples units for distance (length)?
Feet, miles, centimeters (cm), mm, yards, etc.
What are some example units for time?
Hours, seconds, years, months, etc.
How many parts are in the Speed unit and what are they?
Speed has a 2 part unit, a unit for distance and a unit for time.
Remember:
Always write out the steps to calculate a Speed, DIstance, or Time problem.
Steps to write out the calculations for Speed, Distance, or Time:
a) Write out the formula.
b) “Plug in” the numbers and units into the formula.
c) Solve mathematically.
d) Write down the answer.
What is velocity?
Speed in a given direction.
Velocity =
Distance/Time (includes direction) V = D/T
Velocity fact:
Speed and velocity are exactly the same but velocity has direction.
Speed Ex:
35 km/hour
Velocity Ex:
35 km/hour SE (Southeast)
SI unit for velocity =
Meters/second (m/s)
