PLTW Automation and Robotics Interim Assessment Study Guide

Front

In a simple gear train with idler, which of the following statements is true? The output gear is where the movement starts. The driving gear is also referred to as the output. The middle gear is also referred to as the driving gear. The driven gear is also referred to as the output.

Back

The driven gear is also referred to as the output.

Front

Your group wants to program a motor to drive forward for 2 seconds, stop for 1 second and then drive in the opposite direction for 4 seconds and stop. You create the following code. Will this code execute as you intended?

Back

Yes, this programming code meets all the requirements.

Front

Bailey, Jamal, and Prashad are working together on a complex code for their Res-Q-Bot. It is a code involving many steps that will take several days to complete. Which of the following will help the entire group stay on track? The three group members agree to create a flow chart so that all group members understand the plan and can work on the code.

Back

The three group members agree to create a flow chart so that all group members understand the plan and can work on the code.

Front

Which of the following is an example of a scenario where a robot will move autonomously? Options: A person uses a handheld device to drive the robot, no coding software is used. A coding software program is used to create code, and a person pushes the robot with their hands so that it moves faster. A coding software program is used to create code and is downloaded to the robot, so that the robot moves based on the code. A coding software program is used to create code but is not downloaded to the robot.

Back

A coding software program is used to create code and is downloaded to the robot, so that the robot moves based on the code.

Front

What must be true of the algorithm for Sophia and Jin's robot shuffle that lasts more than 20 seconds, goes both forward and backwards, and begins when BumperA is pressed?

Back

The event handler block must include "When BumperA is pressed".

Front

What is the difference between a repeat loop and a forever loop?

Back

A repeat loop repeats for a designated number of times, whereas a forever loop repeats until the program stops running.

Front

Drew, Anaya, and Olivia are working together on a gear train. They want the output speed to be faster than the input speed. How should they assemble the gears to achieve this result?

Back

The driving gear needs to be larger than the driven gear.

Front

Describe the gear train that will meet the requirements for a drone propeller to spin at a speed of at least 400 rpm using a motor that spins at 200 rpm and the following materials: Gears in a variety of sizes. Options: The gear ratio of the driving gear and driven gear would be 1:1. There are 36 teeth on the input gear and 18 teeth on the output gear. The number of rotations of the driving gear equals 5 and the number of rotations of the driven gear equals 1. There are 18 teeth on the driving gear and 36 teeth on the driven gear.

Back

There are 36 teeth on the input gear and 18 teeth on the output gear.

Front

Lucas and Mia are working on a code for their robot to perform a dance routine. The routine should last for 30 seconds and the robot should move in a zigzag pattern. The routine begins when ButtonB is pressed. Which of the following must be true of the algorithm? Options: The event handler block must include "When ButtonB is pressed". The "wait time" of all the actions must add up to 25 seconds. The event handler must include a loop. The event handler block must include "When Brain right button is pressed".

Back

The event handler block must include "When ButtonB is pressed".

Front

Refer to the simple gear train set up pictured. The outer gears rotate in the _______________ direction of the middle gear.

Back

Opposite