WorksheetsCHAPTER 5 - COLLISION DETECTION
Total questions: 10
Worksheet time: 6mins
1. If the threshold value is set to high, rero:micro ........
not avoid rero:micro damaged
can avoid false triggers
can register a collision even though the impact is not strong enough
not register a collision if the impact is not strong enough
2. What is the measurement unit used to measure acceleration in an inbuilt accelerometer ?
gram (g)
kilogram (kg)
miligram (mg)
nanogram (ng)
3. 1 g of gravitational acceleration is
9.81 m/s²
~9.801 m/s²
~9.8001 m/s²
~9.81 m/s²
4. Accelerometers are used for the following functions, EXCEPT ______
Car crash detection
Smartphone screen rotation
Obtain geographical location
Drone stabilisation
5. What is motion sensor on the micro:bit?
Accelerometer
Compass sensor
Micro:bit doesn't have a motion sensor
Combination of Accelerometer and Compass
6. We use centimeter (cm) to measure reading of ultrasonic sensor. What is the measurement unit used to mesure readings on "accelerometer"?
mg, as in "1/1000th of a single unit of g (gravitational acceleration)"
⁰, as in "degrees"
g, as in "gram"
kg, as in "kilogram"
7. Based on coding below,I want to programmed my micro:bit to display "Excuse Me" on the LED matrix. Which block you need to change?
pause(ms) 100
acceleration (mg) y
show string "Hello"
y-axis
8. Where you can find acceleration block in the toolbox?
Variables
Basic
Input
Logic
9. Image below shows 3 different axis of an accelerometer. Can you help matching (A), (B) and (C), with the matching is correct?
A - Z axis
B - L axis
C - Y axis
10. Accelerometer are widely used in ___________
in space shuttle navigation
drone stabilisation
smartphone screen rotation
car crash detection
