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WorksheetsPLTW Automation & Robotics – Final Exam (30 Questions)
Total questions: 28
Worksheet time: 14mins
What is the main purpose of a sensor in a robotic system?
To move the robot
To power the robot
To collect information from the environment
To hold parts together
Which of the following is an example of an input device?
Motor
LED
Bumper switch
Gear
Which sensor is used to detect different colors?
Distance sensor
Bumper switch
Color sensor
Motor encoder
In the Color Coded activity, the color sensor was used to:
A. Measure speed
B. Detect light intensity
C. Identify colors to trigger actions
D. Turn gears
What does the VEX Brain do in a robotic system?
Supplies mechanical motion
Processes inputs and controls outputs
Stores building parts
Measures torque
What type of motion does a cam and follower create?
Rotary motion
Random motion
Reciprocating (up and down) motion
Circular motion
In a cam and follower system, the follower moves:
Side to side continuously
Up and down once per cam rotation
Faster than the cam
Only when a button is pressed
What type of motion is converted by a cam?
Linear to rotary
Rotary to reciprocating
Linear to random
Reciprocating to rotary
Which mechanism uses sprockets and chains to transfer motion?
Belt drive
Chain drive
Gear drive
Pulley system
In a chain drive, the driving and driven sprockets rotate:
In opposite directions
At random speeds
In the same direction
Only when programmed
If the driving sprocket is smaller than the driven sprocket, what happens?
Speed increases and torque decreases
Speed decreases and torque increases
Both speed and torque increase
Nothing changes
A tank tread system is considered a type of:
Gear train
Belt drive
Chain drive
Cam system
What is the purpose of intake flaps on a chain drive?
Increase motor speed
Reduce friction
Help move objects along the chain
Change direction
What programming structure repeats instructions multiple times?
Condition
Loop
Function
Variable
Which loop runs continuously until the program stops?
Repeat loop
If loop
Forever loop
Event loop
Why are comments added to a program?
To make the robot faster
To explain what the code does
To power sensors
To fix errors automatically
What tool is used to compare multiple design ideas against requirements?
Flowchart
Algorithm
Decision matrix
Loop
Which step of the design process focuses on brainstorming ideas?
Define the problem
Generate concepts
Build and test
Present the solution
Improving a design after testing is called:
Debugging
Iteration
Automation
Evaluation
Why do engineers document their work in a Gateway Notebook?
To save time
To store parts
To track ideas, testing, and improvements
To write programs
What is the goal of the Helping Hand project?
Build the fastest robot
Create an automated system to help users
Learn only programming
Decorate a robot
Sensors are considered input devices.
True
False
25. Motors are outputs because they produce motion.
True
False
A cam and follower system converts rotary motion into linear motion.
True
False
In a chain drive, larger driven sprockets increase torque.
True
False
The design process is always linear and never repeated.
True
False
Troubleshooting should begin by checking power first.
True
False
Combining ideas from multiple team members can improve a final design.
True
False
