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WorksheetsRobotics 2021 Review
Total questions: 40
Worksheet time: 21mins
How can you increase the torque in your drivetrain
Change the PWM value of the motor
Increase the size of the wheels
Increase the speed of the robot
Change the gear ratio
Why is it important to organize all the inventory of robotic components?
To easily locate components needed for assembly.
To make the classroom look better when the principal walks in.
Organizing is not important.
Because Mr. LeBlanc in mean.
____________ are used to protect your eyes
Prescription Eyeglasses
Contact Lenses
Sunglasses
Safety Glasses
Reduced power and response time of the motors is an early indicator of:
Low battery
A programming error
Jumper in the wrong port
Poorly aligned motors
A VEX Motor is
A device that uses gas to power the robot.
A device that is only an INPUT to the Vex Controller.
A device that converts electrical energy to mechanical energy.
A device that converts mechanical energy to electrical energy.
Identify this component.
Lock Nut
Keps Nut
8-32 BHCS
HEX Wrench
The ________ is the brain of the robot.
motor
encoder
transmitter
controller (Cortex, PICS, or V5)
A _________ is commonly used to reduce the friction of rotating parts in a machine.
hex shaft
gear
collar
bearing flat
If two gears are set up with a center-to-center distance that is too long they will __________.
mesh properly
have a 3:1 gear ratio
bind
mesh loosely (skip) or not mesh at all.
How many joysticks control the robot's drive train in Tank control?
Two
One
Three
None, it uses buttons
The Wait() command will cause your program to:
Turn off all the motors briefly.
Turn off the robot controller briefly.
Stop and only restart after user input.
Pause for a certain number of seconds
An if-else statement is used when:
You need to do one thing or both things.
You need to do one thing, the other, or neither.
You need to do one thing or the other.
You need to do both things, or neither.
An autonomous robot is one that:
Has mechanisms to perform a variety of operations.
Is able to respond to joystick commands.
Requires a human operator to carry out its tasks.
Uses its own intelligence or program to handle situations.
An electric motor is useful because it turns electricity into:
gravitational energy
potentiality energy
chemical energy
mechanical energy
Friction is a force that always acts____.
in the same direction that the object is moving
downwards against the surface
perpendicular to the motion of the object
opposed to the motion of the object
Software used for programming the VEX V5 robots.
RobotC
Notepadd++
Replit.com
VEXCode
A sensor that detects the presence of certain wavelengths of light and reports the intensity of light back to the electronic component that controls the operation of the robot.
Encoder
Light Sensor
Motor
Transmittor
If you use gears to increase torque, speed will...
decrease
increase
Wheels with teeth that mesh together and make things turn; used to transfer motion or power from one moving part to another.
friction wheels
mecanum wheels
gears
sprockets
Gear that drives or turns the follower gear; it is usually connected to a power source such as a motor.
Driver
Driven
Gear that gets driven by the input gear. Usually connected to a wheel or end effector
driver
driven
General term for any command or group of commands in a program.
code
pseudocode
instruction
patterns
A written note in the program that explains something about that portion of the program.
comment
statement
conditional
Code that has been permanently placed in a hardware component.
Software
Hardware
Firmware
Freeware
A device that detects some important physical quality or quantity about the surrounding environment, and conveys the information to the robot in electronic form
Motor
Sensor
Controller
Structure
A sensor that detects sound waves and reports the amount of sound back to the electronic component that controls the operation of the robot
Sonar
LIDAR
Radar
Touch
A sensor that detects physical contact (touch) and reports back to the electronic component that controls the operation of the robot
Sonar
Light
Touch
LIDAR
What happens when a small gear drives a big gear?
Speed goes up and torque goes down
Torque goes up and speed goes down
Both speed and torque go up
Nothing changes with speed or torque
Physical system that provides support and stability
Structural System
Propulsion System
Control System
Tool and Actuator System
System the includes Microcontroller(Brain), operation program, electrical power, and joystick
Structural System
Propulsion System
Control System
Tool and Actuator System
Which of the following best describes how the Distance Sensor works?
The Distance Sensor uses the time it takes for ultrasonic waves to reach an object from the sensor.
The Distance Sensor uses the time it takes for ultrasonic waves to bounce off of an object and return to the sensor.
The Distance Sensor uses the time it takes for the VR Robot to reach all objects in the Playground.
The Distance Sensor uses the time it takes for ultrasonic waves to bounce off yellow and orange objects and return to the sensor.
Which of the following best describes what the <Greater than> block reports?
If the first value is larger than the second value.
If the first value is less than the second value.
If the first value and the second value are equal.
The first value.
True or False
The longer the sound takes to return, the further the object is away.
True
False
What will happen if the FrontEye detects green in this project?
Stop driving.
Turn left for 90 degrees.
Turn right for 90 degrees.
Drive forward.
What value will the <Eye Sensor near object> Boolean block report when the Eye Sensor is close to an object that has detectable colors?
It will report TRUE.
It will report FALSE.
It will report how far in millimeters (mm) or inches the Eye Sensor is from the object.
It will report the location angle of the VR Robot in degrees.
Which direction will the VR Robot turn when using the [Turn to heading] block?
The VR Robot will determine which direction to turn based on the current heading of the Distance sensor.
The VR Robot will always turn counter-clockwise.
The VR Robot will always turn clockwise.
The VR Robot will determine which direction to turn based on the current heading of the Gyro sensor. The VR Robot will turn in the direction with the smaller degree difference between the current and given heading.
How do you nest loops in a VEXcode VR project using blocks from the Tool Box?
Add the loop you want to nest underneath a loop in the workspace.
Drag the loop you want to nest inside of another existing loop in the workspace.
Add the loop you want to nest on top of an existing loop in the workspace.
Right-click or long-press on the block to activate the Context Menu and then select Nest Block.
What is one reason to use nested loops?
To repeat certain actions more than others within the outer repeat loop.
To sense the distance between the VR Robot and an object.
To determine if there is a red object on the Playground.
To turn the VR Robot to a specific heading based on the Gyro Sensor.
Which of the following does NOT make up an algorithm?
Loops
Selection
Sequence
Pseudocode
Which of the following best explains why [If then else] blocks are normally used with a [Repeat] or [Forever] blocks?
In order to check the condition more than once.
In order to move immediately to the next block without checking any conditions.
In order to stop the VR Robot from moving.
In order to check the condition only once.
