PHASE 4 ASSESSMENTS

1. Why do blue jeans appear blue?

​         a. The cloth is absorbing only blue wavelengths.

          b. The cloth is reflecting blue wavelengths.

          c. The cloth is absorbing all the wavelengths.

          d. The cloth is reflecting all wavelengths.

​2. Why does black have an RGB value of (0, 0, 0)?

          a. Black objects absorb only black wavelengths.

          b. Black objects reflect only black wavelengths.

          c. Black objects absorb all the wavelengths.

          d. Black objects reflect all the wavelengths.

3. When an object has an RGB value of (255, 0, 0), which of the following is true?

          a. The object absorbs only red waves.

          b. The object reflects only red waves.

          c. The object reflects green waves.

          d. The object reflects blue waves.

4. When an object has an RGB value of (200, 100, 100), which of the following is true?

          a. The object absorbs more green and blue than red waves.

          b. The object reflects more green and blue than red waves.

          c. The object absorbs more red than blue and green waves.

          d. The object reflects more blue than green and red waves.

5. When you scan a purple object, which of the following is likely true?

          a. The object absorbs equal parts red and blue.

          b. The object reflects equal parts red and blue.  

          c. The object absorbs only red and blue.

          d. The object reflects only green waves.

​6. How does the color sensor detect color?

          a. The sensor shines a bright white light so that a camera can tell the computer what color is being seen.

          b. The sensor can see the colors absorbed by objects by using a microscope to see inside the objects.

          c. The sensor tells the computer what to think by guessing which color is present based on how light/dark each part of the object is.

          d. The sensor shines a white light and once reflected, the sensor measures how much red, green and blue frequencies return to the sensor.

1. What does the “If, return” function block do?

          a. It tells the computer to start over a piece of code when a condition is met.

          b. It tells the computer to return a value when a condition is met.

          c. It tells the programmer to complete an action when a condition is met.

          d. It tells the programmer to return to the beginning of a piece of code.

2. What does “repeat forever” do?

          a. It tells the computer to execute a statement repeatedly forever.

          b. It tells the computer to restart a piece of code.

          c. It tells the programmer to execute an action repeatedly forever.

          d. It tells the programmer to restart a piece of code.

​3. Why is it best to use the “repeat forever” loop? (Select all that apply.)

          a. The sensor only senses at certain times and the code is timed to the sensor.

          b. The sensor has to be told to sense, so the loop tells it to always sense.

          c. The sensor is constantly sensing, so the loop allows the code to do the same.

          d. The computer needs to be told to repeat an action over and over forever.

4. What logic blocks did you use? (Select all that apply.)

          a. “Start” block

          b. “And” block

          c. “= logic” block

          d. “True” block

5. How does the sensor detect color? (Select all that apply.)

          a. The sensor shines a white light and it measures the frequency of the reflected waves.

          b. The sensor shines a white light and it measures the wavelength of the absorbed waves.

          c. The sensor receives information from the code.

          d. The sensor sends information to the computer based on the wavelengths it detects.

​6. What does it mean to “shout”?

          a. It tells the computer to make a noise.

          b. It tells the computer to display information visually on screen.

          c. It tells the programmer to shout when they see something pop up on the screen.

          d. It tells the programmer to press a button.

7. Did the RGB values repeat for multiple letters?

          a. Yes, letters can have the same color.

          b. No, each letter must have a specific color.

8. Did the order matter when you were scanning the colors?

        a. Yes, the order of colors scanned depended on the order of the letters.

          b. No, the order of colors scanned doesn’t matter.

9. What does the human eye have in common with the color sensor?

          a. The human eye also shines a white light to detect color.

          b. The human eye perceives color by measuring the waves of light absorbed by objects.

          c. The brain sends signals to the eye to determine the color of an object.

          d. The human eye receives certain waves of light reflected by objects.

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10. How do the RGB values of a black object compare to those of a white object?

          a. They have the same RGB values.

          b. They have the same RGB values in reverse.

          c. The black object absorbs all wavelengths, while the white object reflects all wavelengths.

          d. The white object absorbs all wavelengths, while the black object reflects all wavelengths.

1. What happened when you put your hand closer to the sensor?

          a. The ball sped up. The speed of the ball stayed the same.

          b. The ball slowed down.

          c. The ball wasn’t affected.

2. What happened when you put your hand further away from the sensor?

          a. The ball sped up.

          b. The speed of the ball stayed the same.

          c. The ball slowed down. The ball wasn’t affected.

3. What did you have to do to when the speed of the blinking gate was high?

          a. I had to move my hand further to the right.

          b. I had to move my hand further to the left.

          c. I had to move my hand closer to the sensor.

          d. I had to move my hand further away from the sensor.

4. What did you have to do when the blinking of the gate had a low speed?

          a. I had to move my hand further to the right.

          b. I had to move my hand further to the left.

          c. I had to move my hand closer to the sensor.

          d. I had to move my hand further away from the sensor.

5. Why did the rate of the bouncing ball increase?

          a. Creating a bigger space allowed it to move faster.

          b. Creating a smaller space allowed it to move faster.

          c. The position of my hand-measured the speed of the ball.

          d. The position of my hand told the computer the speed of the ball.

6. What were you trying to match in the game?

          a. The length of the bouncing ball to the distance to the gate.

          b. The speed of the bouncing ball and the flashing gate.

          c. The movement of my hand to the movement of the bouncing ball.

          d. The movement of my hand to the movement of the flashing gate.

7. How do you think you were controlling the game? (Open-ended, no incorrect responses)

8. How would you describe the difficulty of the puzzles? (Open-ended, no incorrect responses)

9. How did your team work together to solve the puzzles? (Open-ended, no incorrect responses)

10. If you had a second try at the puzzles, what would you do differently? (Open-ended, no incorrect responses)

1. What wave property allows the sensor to detect distance?

          a. The weight of a sound wave.

          b. The temperature of a sound wave.

          c. The color of a sound wave.

          d. The speed of a sound wave.  

2. What does the Range Finder measure?

          a. Distance  

          b. Speed

          c. Movement

          d. Waves

3. What units do we use for measuring this (response from question 2)?

          a. Centimeters

          b. Meters

          c. Inches

          d. All of the above  

4. How does the Range Finder detect distance?

          a. Uses light waves

          b. Uses voltage changes

          c. Kinetic energy of particles

          d. Sound waves  

5. What’s the difference between cm and in?

          a. They are the same size.

          b. One measures distance and the other measures speed.

          c. Cm is a smaller unit than in  

          d. In is a smaller unit than cm

6. When the ball is bouncing faster, what can you say about its frequency?

          a. The frequency is high.  

          b. The frequency is low.

          c. The frequency is flat.

          d. There is no frequency.

7. When the ball is moving over your head, what does your hand change?

          a. The ball’s frequency.

          b. The ball’s speed.  

          c. The ball’s position.

          d. The ball’s distance.

8. What type of waves does the Range Finder use to detect distance?

          a. Light wave

          b. Sound wave  

          c. Color wave

          d. Water wave

9. What determines the time it takes for a wave to return to the sensor?

          a. The distance it travels  

          b. The shape of the wave

          c. The color of the wave

          d. The bounce of the wave

1. Which of these units would create a larger Security Zone?

          a. 5 cm

          b. 5 inches    

          c. .5 cm

          d. .5 inches

2. Which of these units would make the sensor go off close to your Piper Computer in the Security Zone project?

          a. 5 cm

          b. 5 inches

          c. .5 cm  

          d. .5 inches

3. How did speed affect your Security Zone?

          a. Going at a faster speed made the zone smaller.

          b. Going at a slower speed made the zone larger.

          c. Going at a faster speed made the zone larger.

          d. The speed doesn’t affect the size of the zone.  

4. How can you convert from cm to in?

          a. Multiply by 2.54  

          b. Divide by 2.54

          c. Add 2.54

          d. Subtract 2.54

5. How do you convert from in to cm?

          a. Multiply by 2.54

          b. Divide by 2.54  

          c. Add 2.54

          d. Subtract 2.54

6. How does your Security Zone work?

          a. The speed of an object sets off a sensor.

          b. The distance of an object sets off a sensor.

          c. The sensor detects speed.

          d. The sensor detects an object at a certain distance and sets off an alarm.  

7. What logic blocks did you use when programming your Range Finder?

          a. If, do, else  

          b. If, do

          c. When, do

          d. Else if

8. Why do you set a parameter when programming your sensor?

          a. To tell the alarm when to go off.

          b. To determine the size of the Security Zone.

          c. To set a distance for which an object cannot cross.

          d. All of the above.  

9. What do the pins control?

          a. The pins control the sound of the alarm.

          b. The pins control the strength of the sensor.

          c. The pins control when the alarm goes off.

          d. The pins control the sensor's ability to talk to the computer.

10. How do we use data to test our code?

          a. The data tells us the measured distance an object is located from the sensor.

          b. The data helps us test the distance provided by the code.

          c. The data tells us how the sensor works.

          d. The data allows tells us what needs to be included in our code.