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Grade_8_Q1_T2

Total questions: 15

Worksheet time: 10mins

Name
Class
Date
1.

Any statements inside an IF clause (section) can be executed multiple times.

a)

FALSE

b)

TRUE

2.

What is the output?

a)

True

b)

False

c)

condition1

d)

condition2

3.

elif can be considered to be abbreviation of

a)

nested if

b)

if..else

c)

else if

d)

if..elif

4.

What will be the output of above program

a)

OLDDY

b)

NEWDY

c)

Error

d)

None

5.

Choose the correct command to start the analog communication

a)

Serial.Begin(9600)

b)

Serial.begin(9600)

c)

serial.Begin(9600)

d)

serialBegin(9600)

6.

How to read from a button

a)

val=serialRead(A0)

b)

val=analogRead(A0)

c)

val=digitalRead(A0)

7.

What is the output?

a)

NUMBER is bigger than 3

b)

nymber is bigger than 3

c)

NUMBER is less than 3

d)

nymber is less than 3

8.

This part is called a

a)

Piezo buzzer

b)

Push button

c)

Potentiometer

d)

None of the Above

9.
A push button on a circuit is an ___________
a)
input
b)
output
c)
command
d)
variable
10.

How much voltage is enough Arduino to work

a)

5 to 12 Volt

b)

4 to 9 Volt

11.

" if (digitalRead(3)==HIGH) " what is "==" stand for ?

a)

equal

b)

and

c)

or

d)

not

12.

Why does a single ultrasonic sensor have 2 "eyes" on it?

a)

So the ultrasonic waves can hit more objects

b)

So the bot can see differences in color

c)

One eye sends a signal and one receives it

d)

In case one eye stops working the other eye is a backup

13.

Ultrasonic waves are a form of _______ waves

a)

sound

b)

ocean

c)

radio

d)

seismic

14.

How many volts do the ultrasonic sensors need to operate?

a)

5v

b)

12v

c)

3v

d)

10v

15.

An ultrasonic sensor is a device that can measure the ________ to an object by sending out _________ waves.

a)

density / echo

b)

path / seismic

c)

elevation / sonic

d)

distance / sound