WorksheetsSTEM - 4th 9 Weeks Test
Total questions: 40
Worksheet time: 35mins
Which part is this?
starscrew
brain
battery
chassis
Which part is this?
chassis
brain
battery
motor
Which part is this?
the wheel
the motor
the battery
the brain
Which part is this?
battery
chassis
controller
brain
What is the first step in the Engineering Design process?
Follow the Plan
Brainstorm Ideas
Ask: Identify the problem
Discuss what can work better
What is the second step in the Engineering Design process?
Draw a diagram
Imagine/Brainstorm ideas
Identify the constraints
Test it Out!
What's the fifth step in the Engineering Design process?
Identify your constraints
Discuss what can work better and improve your design
Gather your needed materials
Follow the plan and test it out
A set of steps engineers follow to complete the design of an object or idea is called the
The Scientific Method
The Engineering Design Process
A _________________ is any factor that limits or restricts a design.
A trade-off
A criteria
A constraint
A prototype
An object that is no longer used or useful to society is called
innovative
prototype
obsolete
antique
Once an engineer has tested their product, what MIGHT they have to do to get it ready to be sold and used by the public?
Test it for the first time
Research how to design it for the first time
Identify the need for the product
Redesign it
Which one of these pictures looks like a prototype for a phone?
Which one of these pictures shows an obsolete phone?
_________________________ is how people change the world around them to meet their needs or to solve problems
Systems
Processes
Technology
Science
What is the name of the long, flat bar that is used to help cut on the table saw?
Saw cut
fence
miter gauge
chop saw
Which type of cut, on the table saw, do we cut across the grain?
rip cut
cross cut
cutter cross
re saw cut
Which type of cut, on the table saw, do we cut with the grain?
Miter cut
Rip cut
angle cut
cross cut
Do you sand with or against the grain?
With
Against
Cross grain
What is this shop tool?
Band saw
Drill press
hack saw
Chop saw
What is the name of this shop tool?
Chop saw
Band saw
Table saw
Hand saw
What is the vocabulary term used for the material we use to make 3D objects?
filament
plastic
steel
In the working world, many fields are using 3D printing in some way. Which field is NOT using 3D printing?
medical field
food, baking field
architectural field
education field
all the above use 3D printing
Identify the type of manufacturing done by a 3D printer.
Repetitive
Additive
Discrete
A person who designs, builds, or maintains engines, machines, or public works.
engineer
entrepreneur
employee
workplane
Fill in the blanks. Since the CO2 containers release an equal amount of gas at the same rate, the car that wins the race is the one that is the ______ and ______.
heaviest, most stable
best painted, best decorated
lightest, most aerodynamic
How do you overcome friction when designing and building your CO2 dragster?
Add more paint.
Use spoilers and body add-ons.
Make sure the moving parts are freely rotating and not rubbing the dragster body.
CO2 dragsters are designed to look like:
Formula 1 cars
Nascar pro stock cars
Whatever the designer chooses
Sprint cars
What is the most important factor that affects how fast your dragster will race?
Mass
Friction
Thrust
Styling
CO2 gas is comprised of which two elements?
Carbon, helium
Oxygen, air
Carbon, oxygen
Oxygen, calcium
Newton's ___ law of motion states that force = mass x acceleration.
1st
2nd
3rd
Acceleration is a change in velocity. Which two components make up velocity?
Speed + distance
distance + time
Direction + force
Speed + direction
When calculating the average speed of a dragster, the formula used is: Average speed = _______ / ________
Time/distance
Velocity/distance
Distance/time
Distance/velocity
The force that resists relative motion between two objects in contact is called?
Drag
Friction
Inertia
Momentum
