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Robotics CompetitionRobotics Competition

Understanding the ConceptsUnderstanding the Concepts

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RulesRules

No more than 60 seconds per questionNo more than 60 seconds per question

10 points for any question answered correctly10 points for any question answered correctly

3 Bonus points to the first group that gives the 3 Bonus points to the first group that gives the correct answer if the original group gets it correct answer if the original group gets it wrong wrong

Winner is the group with the total number of Winner is the group with the total number of points after all three roundspoints after all three rounds

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Question 1Question 1

The main function of resistors is any The main function of resistors is any circuit is tocircuit is to

A. Store energy

B. Grow stem cells

C. Reduce the flow of current through the circuit

D. Prevent water from flowing

E. Cause electrochemical bonding

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Question 2Question 2 The order of control for your robot is:The order of control for your robot is:

A. You Computer Program Basic Stamp Chip Servos Wheels

B. Basic Stamp Chip You Computer Program Wheels Servos

C. You Basic Stamp Chip Servos Computer Program Wheels

D. Computer Program Basic Stamp Chip Servos Wheels You

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Question 3Question 3

Left

Right

From the above figure,

A. The RCtime for the left wheel is greater

B. The RCtime for the right wheel is greater

C. Both RCtimes are equal

D. It is not possible to tell which RCtime is greater

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Question 4Question 4 I want my robot to move forward in full speed, I want my robot to move forward in full speed,

which of the following commands is correct if the which of the following commands is correct if the left wheel is connected to port 12 and the right left wheel is connected to port 12 and the right wheel is connected to port 13 ?wheel is connected to port 13 ?

A. Pulsout 13, 500 Pulsout 12, 500

C. Pulsout 13, 1000 Pulsout 12, 500

B. Pulsout 13, 500 Pulsout 12, 1000

D. Pulsout 13, 1000 Pulsout 12, 1000

E. Pause 20

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Question 5Question 5

What does the above code do?What does the above code do?A. Powers up ports 12 and 13

B. Resets port 12 and powers up port 13

C. Resets ports 12 and 13

D. Resets port 13 and powers up port 12

E. Moves the left wheel bacwards

Low 12 Low 13

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Question 6Question 6

A. If abs(left_photo-right_photo) < 7 then fwd_pulse if left_photo > right_photo then right_pulse if left_photo < right_photo then left_pulse

This is what you want:Which of the following commands is correct?

Note: fwd_pulse moves the robot fwdleft_pulse moves the robot leftright_pulse moves the robot rightDeadband = 7

B. If abs(left_photo-right_photo) > 7 then fwd_pulse if left_photo > right_photo then right_pulse if left_photo < right_photo then left_pulse

C. If abs(left_photo-right_photo) < 7 then fwd_pulse if left_photo < right_photo then right_pulse if left_photo > right_photo then left_pulse

D. If abs(left_photo-right_photo) < 7 then fwd_pulse if left_photo > right_photo then right_pulse if left_photo > right_photo then left_pulse

Right

Left

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Question 7Question 7 Suppose the left wheel is connected to p12 and Suppose the left wheel is connected to p12 and

the right wheel is connected to p13, what does the right wheel is connected to p13, what does the following code do?the following code do?

A. Makes the robot move forwardB. Makes the robot move backwardsC. Makes a left turnD. Makes a left spinE. Makes a right turn

pulsout 12, 1000 pulsout 13, 1000

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Question 8Question 8

If your robot takes 125 pulse counts to If your robot takes 125 pulse counts to travel 50cm, how many resolutions does it travel 50cm, how many resolutions does it take to travel 150cmtake to travel 150cm

A. 375

B. 100

C. 150

D. 139

E. 250

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Question 9Question 9

If the resistance of a photoresistor is If the resistance of a photoresistor is increased, its RCtime willincreased, its RCtime will

A. Become greater

B. Become Smaller

C. Remain the same

D. Be reversed

E. Disappear

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Question 10Question 10

Which of the following is true?

Room A Room B

A. I need a higher deadband in Room A because the RCtimes of the sensors will be higher in Room A

B. I need a higher deadband in Room A because the RCtimes of the sensors will be lower in Room A

C. I need a higher deadband in Room B because the RCtimes of the sensors will be higher in Room B

D. I need a higher deadband in Room A because the RCtimes of the sensors will be lower in Room B

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1111

What does the above code do?What does the above code do?A. Makes the robot move forward

B. Makes the robot think about moving forward

C. Makes the right and left wheels move in opposite directions

D. Nothing

E. Confuses the robot

‘ robot moves forward

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Question 12Question 12 A finite loop:A finite loop:

A. Makes the robot confusedB. Helps the robot differentiate between light

and darknessC. Tells the robot when to start and stop

executing a commandD. Resets the robot when the battery is deadE. Moves the left and right wheels in opposite

directions

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Question 13Question 13

The purpose of introducing a deadband isThe purpose of introducing a deadband isA. To make the photo-sensors see different

colors

B. To prevent the robots from hitting the wall

C. To awaken the dead cells of the circuit

D. To prevent the robot from changing directions unnecessarily

E. To kill the wheels of the robot