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WorksheetsMySTEM National Science Month 2021 (English)
Total questions: 16
Worksheet time: 8mins
Can the PIR sensor detect other motion not by human?
Passive infrared (PIR) motion detection will not only turn on when human body detected
Passive infrared (PIR) motion detection will turn off when human body detected
Passive infrared (PIR) motion detection will only turn on when human body detected
Passive infrared (PIR) motion detection will turn on when sounds of human steps detected
Why must there be 3 resistors connected to the bulb in the Social Distance Robot?
So the bulb can withstand high current flow
To ensure the bulb shine bright
To prevent the bulb from blowing
To increase the current flowing through the bulb
When there is a person within a 0.9m radius, will the buzzer automatically activate?
Yes
No
What is the function of piezo in the Fire Alarm Robot?
To produce a buzzing sound when circuit is on
To detect smoke
To detect high temperatures
To display functions of the device
If the temperature is 25℃ but there is smoke in a room, will the alarm automatically activate?
Yes
No
What software was used to program the Digital Clock Robot?
AutoCAD
TinkerCAD
Sublime Text
Dev-C++
What is the function of the potentiometer of the Digital Clock Robot?
Manually decrease the hour value of the digital clock robot
No Function
Manually increase the hour value of the digital clock robot
Adjust the brightness of the digital clock robot
Where does the switch distribute power when the light motion robot detects motion?
i. Manual override
ii. Bulbs
iii. Sensor mode
i and ii
ii and iii
i and iii
i, ii and iii
When will the transistor distribute electricity to light up the bulbs automatically?
When there is a signal from the second pin
When there is a signal from the third pin
When there is a signal from the first pin
When there is a signal from the fourth pin
What is the energy conversion in lighting up a torchlight?
Chemical Energy ➡️ Electrical Energy + Light Energy + Heat Energy
Chemical Energy ➡️ Potential Energy ➡️ Kinetic Energy
Chemical Energy ➡️ Mechanical Energy
Chemical Energy ➡️ Kinetic Energy + Heat Energy
What is the correct statement about sound sensor?
It is one type of module to detect sound intensity
It is one type of module to produce sound
Photodiode is one of the sound sensor
It is one type of module to detect light
What is the function of ultrasonic sensor?
A device to detect sound
Amplify sounds and distance
A device that measures the distance of a target object and convert the reflected sound into an electrical signal
A device that measures the distance of a target object by emitting ultrasonic sound waves, and convert the reflected sound into an electrical signal
What physics law was applied in Ballerina Motor experiment?
Lenz' Law
Faraday's Law
Bernoulli's Principle
Hooke's Law
What is the energy involved in Aqua Transport experiment?
I. Chemical Energy
II. Potential Energy
III. Mechanical Energy
IV. Kinetic Energy
I and II
II and III
I, II and IV
I, III and IV
Which component is not needed to make the light sensor?
bulb
resistor
battery
ambient light sensor
How does flood alarm monitoring work?
1.Sensors are installed near appliances.
2.When overflowing water is detected, a flood alarm signal is sent to the home alarm panel.
3.Alarm panel will notify you using sound.
1.When overflowing water is detected, a flood alarm signal is sent to the home alarm panel.
2.Sensors are installed near appliances.
3.Alarm panel will notify you using sound.
1.Alarm panel will notify you using sound.
2.When overflowing water is detected, a flood alarm signal is sent to the home alarm panel.
3.Sensors are installed near appliances.
