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WorksheetsGrade 3 Ultrasonic sensors
Total questions: 14
Worksheet time: 14mins
How do robot sensors act like human senses?
They sense change, send it to the processor and the processor responds to the change
They sense music, music then reacts to vibes and the sensors make the bot start dancing
They sense time, it takes time to focus and then the processor will react to the time
They sense nothing, and no signal is sent out, so nothing is received
What is the first step in the car headlight example?
First, the car starts its engine
First, the car recognises it is dark
First, the car turns on its windscreen wipers
First, the car recognises it is light
What is the second step in the car example?
Second, the car wipers start swishing and cleaning the windscreen
Second, the car engine makes a noise and the car will start and it can then be driven
Second, the car sends the sense of change in lighting to components responsible to switch the car headlights on
Second, the car sends the sense of change to the human and the human knows to switch on the lights
What is the third step in the car example?
Third, the component then switches the car lights on
Third, the windscreen wipers start moving on their own
Third, the car starts moving in a circle
Third, the lights turn off because it is dark
What do we call the ultrasonic sensors?
The "eyes" of the bot
The "ears" of the bot
The "head" of the bot
The "senses" of the bot
What does the ultrasonic sensor do?
Helps bot to crash into objects
Helps bot to avoid crashing into objects
Helps bot measure sound
Helps bot to measure how long a room is
What does the ultrasonic sensor use to detect where objects are?
Echoes
Geckos
Impose
Enclose
What does the ultrasonic sensor send out?
Sound waves
Sound sands
Sound bars
Sound types
The time it takes to hear an echo back is ...
How close the object is to the Bot
How wide the object is compared to the Bot
How narrow the object is compared to the Bot
How far the object is from the Bot
The longer the time ...
The closer the object
The further the object
The wider the object
The narrower the object
What is an echo?
When sound travels to the walls and bounces back
A loud bang against the door
A squeaky sound made by tyres
A whisper that travels across the wind
What is the purpose of ultrasonic sensors?
To measure lights and how light/dark they are
To measure sounds that are far away
To measure how far something is from the sensor
To measure time and how late it is
What direction can the Bot see with its sensors?
In front
Behind
At the side
All of the above
Does Novi have ultrasonic sensors?
Yes
No
I don't know
You can add them on
