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WorksheetsUltrasonic
Total questions: 15
Worksheet time: 8mins
Why does a single ultrasonic sensor have 2 "eyes" on it?
So the ultrasonic waves can hit more objects
So the bot can see differences in color
One eye sends a signal and one receives it
In case one eye stops working the other eye is a backup
Ultrasonic waves are a form of _______ waves
sound
ocean
radio
seismic
What is the maximum speed our bot can go?
100
15
1023
255
When we print out the ultrasonic sensor data, what units are they in?
inches
feet
centimeters
meters
What is the main difference between data types "int" and "float"?
Data types int is real and float is made up
Data types int can be in decimals and float must be whole numbers
There is no difference
Data types int must be whole numbers and float can be in decimals
How many volts do the ultrasonic sensors need to operate?
5v
12v
3v
10v
An ultrasonic sensor is a device that can measure the ________ to an object by sending out _________ waves.
density / echo
path / seismic
elevation / sonic
distance / sound
The speed of sound is _________ m/s
100
340
250
255
The original wave is called the _____ wave
trig
outbound
echo
re-curve
The reflected wave is called the _____ wave
return
trig
re-curve
echo
Look at the image. The sensor depicted is:
An ultrasonic sensor
A passive infrared sensor
A LDR sensor
A temperature sensor
Look at the image. The output is:
Ultrasonic sensor
Passive infrared sensor
LDR
LED
Arduino
Look at the image. The input is:
Ultrasonic sensor
Passive infrared sensor
LDR
LED
Arduino
The sensor used for object detection and distance calculation is __________.
PIR
Ultrasonic sensor
Hall sensor
1 second equals to _____________.
1000 millisecond
1000 microsecond
