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WorksheetsRobotics 2 EOC exam
Total questions: 101
Worksheet time: 57mins
What is the first step in the engineering design process?
Build a prototype
Identify the problem
Test the solution
Communicate results
Which simple machine is primarily used in a catapult to store and release energy?
Pulley
Lever
Wheel and axle
Inclined plane
What is the main function of a mouse trap in a mouse trap car?
To steer the car
To provide propulsion
To slow down the car
To decorate the car
Which component is NOT typically found in a VEX robotics kit?
Servo motor
Breadboard
Metal beams
Gears
What is block coding?
Writing code using only numbers
Programming using visual blocks that represent code
Coding in a text editor
Coding with only one color
Which of the following is a basic function of animatronics?
Painting
Movement simulation
Data analysis
Web browsing
Which part of a mouse trap car is responsible for reducing friction with the ground?
The spring
The wheels
The lever arm
The string
What is a gear ratio?
The number of wheels on a car
The ratio of the number of teeth on two meshing gears
The speed of a motor
The length of a lever
Which gear arrangement will increase the speed of a VEX robot?
Large gear driving a small gear
Small gear driving a large gear
Two gears of the same size
No gears at all
Which of the following best describes the purpose of testing a prototype in the engineering design process?
To see if the solution works as intended
To make the prototype look better
To sell the prototype
To write a report
If you want your catapult to launch a ball farther, which design change would most likely help?
Use a shorter arm
Increase the tension in the launching mechanism
Add more weight to the base
Use a lighter projectile
When programming a robot using block coding, which block would you use to make the robot move forward?
"Turn left"
"Move forward"
"Repeat"
"Stop"
How does using gears in a VEX robot affect its movement?
Gears only change the color of the robot
Gears can change the speed and torque of the robot's movement
Gears make the robot heavier
Gears are only for decoration
Why is it important to use simple machines in animatronics?
To make the animatronic look more colorful
To reduce the amount of movement
To efficiently transfer and control motion
To make the animatronic heavier
Which of the following best explains why a mouse trap car might not move straight?
The color of the car is too bright
The wheels are not aligned properly
The string is too short
The car is too light
A gear train has a driving gear with 10 teeth and a driven gear with 50 teeth. What is the gear ratio?
1:5
5:1
10:50
2:1
A student wants to improve the accuracy of their catapult. What should they do?
Use a random launching angle each time
Use a consistent launching angle and force
Change the projectile every time
Launch from different surfaces
You are designing a VEX robot to pick up objects. Which combination of parts would be most effective for creating a grabbing mechanism?
Wheels and axles
Gears and levers
Beams and nuts
Sensors and lights
If a gear train has a gear ratio of 2:1, what does this mean?
The driven gear turns twice for every turn of the driving gear
The driving gear turns twice for every turn of the driven gear
Both gears turn at the same speed
The gears do not move
Which VEX part is used to sense distance?
Motor
Ultrasonic sensor
Gear
Beam
Which block coding structure allows a robot to repeat a set of actions?
"If" block
"Repeat" or "Loop" block
"Wait" block
"Stop" block
What is the function of a servo motor in animatronics?
To provide precise control of movement
To play music
To light up LEDs
To store data
Which of the following is a benefit of using block coding for beginners?
It requires advanced typing skills
It helps visualize programming logic
It is only for experts
It is slower than text coding
A mouse trap car travels a shorter distance than expected. Which factor is most likely responsible?
Too much friction in the wheels
The car is too colorful
The lever arm is too long
The string is too tight
Which VEX part is used to connect two gears together at a distance?
Axle
Chain and sprocket
Beam
Sensor
What is the main purpose of using a lever in a catapult?
To store and release energy efficiently
To make the catapult heavier
To slow down the projectile
To decorate the catapult
Which of the following is an example of a simple machine used in animatronics?
Lever
Computer
Battery
Wire
A student is building a gear train with three gears. If the first gear has 8 teeth, the second has 16 teeth, and the third has 32 teeth, what is the overall gear ratio from the first to the third gear?
1:2
1:4
4:1
2:1
Which of the following is NOT a step in the engineering design process?
Identify the problem
Brainstorm solutions
Ignore feedback
Test the prototype
What is the main function of a sensor in a BirdBrain Technologies project?
To provide input to the system
To power the project
To store data
To decorate the project
Which of the following best describes a "torque" in the context of gears?
The speed of rotation
The force that causes rotation
The color of the gear
The number of teeth
A student wants to make their animatronic puppet's arm move more slowly. What should they do with the gear ratio?
Use a higher gear ratio (large driven gear, small driving gear)
Use a lower gear ratio (small driven gear, large driving gear)
Remove all gears
Use only one gear
Which of the following is a reason to use a prototype in the engineering design process?
To test ideas before final production
To skip the testing phase
To avoid making changes
To make the process longer
A gear train has a driving gear with 20 teeth and a driven gear with 10 teeth. What is the gear ratio?
2:1
1:2
10:20
1:1
Which of the following is a function of the "if" block in block coding?
To repeat actions forever
To make decisions based on conditions
To stop the program
To change the color of the blocks
A student is using BirdBrain Technologies to make a robot that moves when it gets dark. Which sensor should they use?
Light sensor
Temperature sensor
Sound sensor
Ultrasonic sensor
Which of the following is a benefit of using gears in a mouse trap car?
Gears can change the speed and force of the wheels
Gears make the car heavier
Gears are only for decoration
Gears slow down the car
A student is building a catapult and wants to increase the launch distance. Which variable should they adjust?
The length of the lever arm
The color of the catapult
The number of wheels
The type of glue used
A team is building a mouse trap car and wants it to travel the farthest distance possible. What strategic changes could they make to achieve this goal? (Select the best answer.)
Use larger wheels and a longer lever arm to increase the distance traveled
Make the car heavier
Use a shorter string
Remove the wheels
You are programming an animatronic bird using BirdBrain Technologies. The bird should flap its wings when a sensor detects movement. How would you plan your block coding sequence?
Start with a "when sensor detects movement" block, then add blocks to move the wings
Only use blocks to move the wings
Use random blocks in any order
Ignore the sensor and move the wings continuously
A student is testing their catapult and notices the projectile always lands short of the target. What reasoning process should they use to improve their design?
Guess and keep launching
Analyze the launch angle and force, then adjust one variable at a time
Change everything at once
Ignore the results
You are tasked with designing an animatronic puppet that can wave its hand and blink its eyes. What is the best approach to plan and build this project?
Build everything at once without a plan
Break down the movements into smaller tasks, design mechanisms for each, and test them separately before combining
Only focus on the hand movement
Use only one motor for all movements
The strongest and most sturdy polygon to use in constructing a base for a catapult is a..
triangle
square
rhombus
circle
What simple machine is a ramp an example of?
Lever
Wheel and axle
Inclined plane
Wedge
Which of the following is NOT considered a type of simple machine?
Lever
Pulley
Battery
Inclined Plane
What advantage does a compound pulley system have over a single pulley system?
It requires more effort to lift the load.
It decreases the distance the effort travels.
It increases the mechanical advantage.
It is simpler to set up.
When you build your prototype it is really important to do this...
Rebuild it
Test it many times
Present it
In the design process, it is okay to make many prototypes and test them instead of choosing one solution to try.
True
False
A model that can be tested and redesigned is called a...
product
prototype
process
A medical company designs a new
device to measure a person’s vital signs,
including heart rate and blood pressure.
During the design process, the company
produces several prototypes.
During which of the following steps is it
most appropriate to use a prototype?
distributing information about
the device
researching how vital signs are
measured
testing whether the device works
properly
determining which vital signs are
most important
How can you increase the speed of your robot?
Put a big gear on the motor and a small gear on the wheel
Put a small gear on the motor and a big gear on the wheel
Lower the RPMs
Change drivers
Tank drive is a way to control you robot.
True
False
The more torque your robot has, the faster it will go...
True
False
What is this VEX IQ part called?
Beam
Standoff
Connector Pin
Shaft
What is this VEX IQ part called?
Pulley
Plate
Wheel and Tire Hub
Gear
What is this VEX IQ part called?
Smart Motor
Smart Cable
Robot Brain
Controller
What is this VEX IQ part called?
Smart Motor
Smart Cable
Robot Brain
Controller
What is this VEX IQ part called?
Beam
Plate
Connector Pin
Gear
What is this VEX IQ part called?
Beam
Standoff
Connector Pin
Shaft
What is this VEX IQ part called?
Smart Motor
Smart Cable
Robot Brain
Controller
What is this VEX IQ part called?
Standoff
Connector Pin
Corner Connector
Shaft Collar
What is this VEX IQ part called?
Pulley
Plate
Wheel and Tire Hub
Gear
What is this VEX IQ part called?
Beam
Standoff
Connector Pin
Shaft
What is this VEX IQ part called?
Pulley
Shaft Collar
Wheel and Tire Hub
Gear
What is this VEX IQ part called?
Pulley
Plate
Shaft Collar
Gear
What category do these parts belong to?
specialty parts
gears
beams & plates
pins & standoffs
sprockets & chain
These parts belong to the (a) category.
What category do this part belong to?
beams & plates
gears
wheels
pins & standoffs
sprockets & chain
Label the following electronic parts.
Which of the following is a component of BirdBrain hardware?
Servo motor
LED light
Both A and B
None of the above
What is the primary function of the BirdBrain software interface?
To provide power to the hardware components
To allow users to program and control the hardware components
To store data collected by the hardware
To connect BirdBrain to the internet
Which of the following is an example of an input device in BirdBrain?
Buzzer
Light sensor
LED
Servo motor
Identify an output device used in BirdBrain.
Temperature sensor
Distance sensor
LED
Microphone
What programming concept is used to repeat a set of instructions in BirdBrain?
Variable
Loop
Function
Condition
In BirdBrain, what is the role of a sensor?
To provide visual output
To detect changes in the environment
To store data
To control other devices
Which software interface is commonly used with BirdBrain hardware?
Microsoft Word
Scratch
Adobe Photoshop
Google Chrome
How does a light sensor function in BirdBrain?
It emits light
It detects the intensity of light
It stores light data
It converts light into sound
Describe the process of connecting a BirdBrain hardware component to the software interface.
Plug the component into a power source
Use a USB cable to connect the hardware to the computer and open the software interface
Install drivers for the hardware
Connect the hardware to the internet
Explain how a loop can be used to control an LED in BirdBrain.
A loop can be used to turn the LED on and off repeatedly at set intervals
A loop can be used to change the color of the LED
A loop can be used to store the LED's state
A loop can be used to connect the LED to the internet
What is the purpose of using variables in BirdBrain programming?
To store data that can be used and manipulated within the program
To create loops
To detect environmental changes
To control hardware components
How can a distance sensor be used in a BirdBrain project?
To measure the distance between the sensor and an object
To emit sound
To display visual output
To store data
Design a simple BirdBrain project that uses both input and output devices. Describe the data flow.
A project where a light sensor detects the ambient light level and an LED changes brightness accordingly
A project where a temperature sensor stores data in a file
A project where a buzzer emits sound based on a timer
A project where a servo motor moves based on a pre-set program
How would you troubleshoot a BirdBrain project if the LED is not lighting up as expected?
Check the power supply and connections, ensure the LED is properly connected, and verify the programming code
Replace the LED with a new one
Restart the computer
Update the software interface
What reasoning would you use to decide between using a light sensor or a distance sensor in a BirdBrain project?
Consider the type of data needed: use a light sensor for light intensity and a distance sensor for measuring distance
Use the sensor that is easier to connect
Use the sensor that is cheaper
Use the sensor that is more readily available
How can you use conditional statements in BirdBrain programming to enhance a project?
By creating conditions that trigger specific actions based on sensor inputs
By storing data
By connecting hardware components
By providing power to the components
What is the significance of data flow in a BirdBrain project?
It determines how data is collected, processed, and used to control output devices
It provides power to the hardware components
It stores data in the cloud
It connects the hardware to the internet
Explain how you would use a servo motor in a BirdBrain project.
A servo motor can be programmed to move to specific angles based on input from sensors
A servo motor can be used to detect light intensity
A servo motor can store data
A servo motor can emit sound
What steps would you take to ensure accurate data collection from a BirdBrain sensor?
Calibrate the sensor, ensure proper connections, and verify the programming code
Replace the sensor with a new one
Restart the computer
Update the software interface
How can you use evidence from sensor data to improve a BirdBrain project?
Analyze the data to identify patterns and make adjustments to the programming code or hardware setup
Store the data in a file
Share the data on social media
Use the data to power the hardware components
What is the role of a buzzer in a BirdBrain project?
To provide auditory output based on programming instructions
To detect sound
To store data
To measure distance
Which of the following best describes the data flow in a BirdBrain project involving a temperature sensor and an LED?
The temperature sensor collects data, which is processed by the software interface, and the LED changes color based on the temperature
The LED collects data, which is processed by the software interface, and the temperature sensor changes its reading based on the LED color
The temperature sensor stores data, and the LED emits light based on a timer
The LED collects data, and the temperature sensor emits sound based on the data
How would you plan a BirdBrain project that uses multiple sensors to control a single output device?
Identify the sensors needed, determine how their data will be combined, and program the output device to respond to the combined data
Use the sensors that are easiest to connect
Use the sensors that are cheapest
Use the sensors that are more readily available
What strategy would you use to debug a BirdBrain project that is not functioning as expected?
Systematically check each component and connection, review the programming code, and test each part of the project individually
Replace all components with new ones
Restart the computer
Update the software interface
How can simple machines make work easier?
by decreasing the force needed to complete the task
by increasing the friction between the machine and the object
by adding more work on the object than originally applied
by removing the force of gravity on the object
Which simple machine would be the MOST efficient for lifting an object 30 meters off the ground?
pulley
screw
wedge
lever
A doorknob is a simple machine made up of 2 circular objects of different sizes. When turning a doorknob, what type of simple machine is being used?
inclined plane
wheel and axle
wedge
pulley
Workers push a heavy box up an inclined plane and onto a moving truck. Which best explains why these workers use an inclined plane?
It makes their work easier because it requires less effort.
It decreases the amount of work they have to do.
It increases the amount of friction necessary to do the task.
It makes the box weigh less.
A group of workers needs to move a piano from the second floor of a building. The piano is too wide to fit through the doorway, so they will lower the piano to the ground through a window. Which simple machine would be the best to help the workers lower the piano from the window?
wheel and axle
inclined plane
pulley
wedge
Using the back of a hammer makes it much easier to remove a nail from a wooden board. What kind of simple machine would the hammer be classified as if you are using it for this purpose?
Wedge
Lever
Pullye
Inclined Plane
