Robotics Test

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Question 1

The HUB has how many sensor connection ports?

a4 b6 c8 d2 standard USB & 4 high speed USB

Question 2

The HUB is connected to a computer by the following method(s)?

aUSB only bUSB & Bluetooth cWireless only dUSB & Wireless

Question 4

Using the image below, pressing the Hub icon, with the green tick, displays what?

SPIKE software toolbar with Hub icon and green tick

aDisplays all the ports and what is connected to each port bDisplays only those ports that have a sensor connected cDisplays all ports with a connected sensor, showing the type of sensor and what it is currently reading (sensor data)

Question 5

This sensor uses what physical process (think wisely) to produce data to be used by the HUB?

aX-rays bSound cRadio waves dUltrasonic sound waves

Question 7

What will the code (below) basically have the robot perform?

aProgram starts, robot waits 3s and then moves bProgram starts, robot moves for 3s and then stops cProgram starts, robot moves for 50 seconds at half speed, then pauses for 3 seconds

Question 8

These two block codes (programming) are examples of:

aEvents programming bProgramming variables cLoop programming

Question 9

2 marks

Explain the basic operation of this block code:

Write at least a couple of sentences. Your teacher will review this answer.

Question 10

Which of the statements below explains the difference between these two different blocks of programming?

aMotor A turns / All motors move forward when instructed bMotor A turns / All motors move forward when motor A starts cMotor A turns clockwise / All motors move at same time when instructed

Question 11

What is the difference between the two 'wait' blocks of programming below?

aOne 'wait' block specifies a specific wait time until movement starts again, the other is waiting until you enter a time to wait while the program is running. bOne 'wait' block specifies a specific wait time until the next programmed action starts, the other is waiting until you enter a time to wait while the program is running. cOne tells the program to wait 1s before executing the next line of programming, the other requires a conditional statement to be inserted for the program to run correctly.

Question 12

Why is it better to move at a slower speed using Lego robotics?

aSensors are too slow bHUB is slow in processing speed cMoving too fast confuses the sensors

Question 13

Programming the motors sometimes requires extra Blockcode, for example the block below. What do we select to find this particular extra code?

cInternal HUB memory d Toolbar icon

Question 14

3 marks

In the line follower code shown below, altering which aspect of the following code would make the robot follow a line more accurately, and why?

Aspect: (1 mark)

Why? (2 marks)

Your teacher will review these answers.

Your Results

Student

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0% —

Estimated result:

This is an estimate only — your teacher still needs to review your written responses before your final result is confirmed.

Question 9 — your explanation of the block code

Question 14 — line follower Aspect changed

Why it improved accuracy

Written answers (Questions 9 and 15) earn completion marks here and will be reviewed by your teacher.