Computational Thinking Practice

Front

To determine light from dark, you need to calculate a _______.

Back

threshold value

Answer explanation

Threshold value is when you take the two values and divide by two.

Front

True or false: The set drive velocity block goes under the drive forward block.

Back

False

Answer explanation

You need to set the velocity before it drives forward or it does not know to change how fast it goes.

Front

The "turn to heading 90 degrees" will do what?

Back

Turn 90 degrees right from where it started at the beginning of the program.

Answer explanation

Front

What happens if the robot's wheels slip too far during a turn?

Back

The robot moves back to where it was supposed to stop.

Answer explanation

The inertial sensor will tell it where it was supposed to be and adjust accordingly.

Front

Big robot behaviors such as "solve the maze" can be decomposed into smaller behaviors such as "turn right" or "drive forward." If you write these small behaviors down in order, this type of list is called _______.

Back

Pseudocode

Answer explanation

You did this for the whole course. Use pseudocode to plan smaller tasks.

Front

Which of the following is a good troubleshooting technique?
Options:
Writing the program all at once.
Using sounds or lights in between robot behaviors.
Deleting the program that doesn't work and trying again.
All of the above.

Back

Using sounds or lights in between robot behaviors.

Answer explanation

Using sounds or lights to indicate where you are in the program can help you figure out what is wrong.

Front

What does a "set ArmMotor stopping to hold" do?

Back

It has the arm motor stay in the position it stopped in.

Answer explanation

Stopping to hold holds the position.

Front

True or false: The "set ArmMotor timeout" block allows the program to continue on to the next block, even if it is unable to reach the desired position.

Back

True

Answer explanation

Set timeout lets the code keep moving even if it can't get to the position you set it to.

Front

For which of the following tasks would the Bump be well suited? Returning a value of 1 if it is pressed and 0 if it is not. Allowing a robot to make precise turns. Making a decision based on color. Displaying colors as a program indicator.

Back

Returning a value of 1 if it is pressed and 0 if it is not.

Answer explanation

Robots make precise turns using the inertial sensor.

Robots make a decisions based on color using the optical sensor.

Robots display colors as a program indicator using the touch LED.

Front

A boolean value can report...

Back

Yes or no, 1 or 0, True or false.