WorksheetsIntroduction of Robotics
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
1 second =
a)
10 ms
b)
100 ms
c)
1000 ms
d)
10000 ms
2.
what is the maximum brightness for LED?
a)
50
b)
100
c)
255
d)
600
3.
What are the three primary colours?
a)
red, orange, green
b)
red, green, blue
c)
red, yellow, blue
d)
red, blue, magenta
4.
For devices like computer and TV screen, Blue + Green =
a)
orange
b)
purple
c)
magenta
d)
cyan
5.
Human ear can hear in the range of
a)
20 Hz to 200 Hz
b)
2 Hz to 2000 Hz
c)
20 Hz to 20000 Hz
d)
200 Hz to 20000 Hz
6.
Below 20 Hz is ________________
a)
i-sonic
b)
intersonic
c)
infrasonic
d)
ultrasonic
7.
1g = acceleration due to gravity at Earth's surface =
a)
7.81m/s2
b)
8.81m/s2
c)
9.81m/s2
d)
10.81m/s2
8.
Ultrasonic sensors may not work well if the object is
a)
big
b)
soft
c)
flat
d)
hard
9.
Infrared _______ be seen by human eyes.
a)
can
b)
cannot
10.
Light Speed = ______________ km/s
a)
3,000
b)
30,000
c)
300,000
d)
3,000,000
100 %
