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Sensors Review AHSA SESSION 2

Total questions: 30

Worksheet time: 5mins

Name
Class
Date
1.

What is a sensor’s superpower?

a)

Detecting changes around it

b)

Reading your mind

c)

Charging your phone

d)

Predicting the weather

2.

Sensors help machines become…

a)

Smarter

b)

Lazier

c)

Hungrier

d)

TikTok famous

3.

What’s the main job of a sensor?

a)

Sleep all day

b)

Sense something and give a signal

c)

Watch Netflix

d)

Talk to wires

4.

If sensors could talk, they’d say…

a)

“I sense something strange!”

b)

“I’m tired of sensing!”

c)

“Can I take a break?”

d)

“Don’t touch me!”

5.

Which sensor works when you touch it?

a)

Pressure sensor

b)

Touch sensor

c)

Mood sensor

d)

Ultrasonic sensor

6.

A light sensor’s worst enemy is…

a)

Darkness

b)

Bright sunlight

c)

Wi‑Fi

d)

Coffee spills

7.

Which sensor helps automatic doors open like magic?

a)

Infrared sensor

b)

Temperature sensor

c)

Magnetic sensor

d)

Emotion sensor

8.

Your smartwatch measures your heart rate using a…

a)

Pulse sensor

b)

Mood sensor

c)

Gyroscope

d)

Love detector

9.

Which sensor helps your phone know which way it’s tilted?

a)

Gyroscope

b)

Touch sensor

c)

Rain sensor

d)

Magnet sensor

10.

What type of sensor makes your car stop before you bump into a wall?

a)

Proximity sensor

b)

Speed sensor

c)

Sound sensor

d)

Panic sensor

11.

Where might you find a temperature sensor working hard?

a)

In a refrigerator

b)

In a pizza box

c)

On a roller coaster

d)

In your math textbook

12.

Which gadget uses a light sensor?

a)

Automatic street light

b)

Electric kettle

c)

Hair dryer

d)

Coffee mug

13.

The smoke sensor in your house screams when...

a)

It’s hungry

b)

It detects smoke

c)

You burn toast

d)

It’s bored

14.

When your phone’s screen turns off during a call — thank which sensor?

a)

Proximity sensor

b)

Sleep sensor

c)

Rage sensor

d)

Gravity sensor

15.

Why do elevators use sensors?

a)

To play music

b)

To detect people and doors

c)

To gossip about floors

d)

To sense your fear

16.

Your robot vacuum avoids walls using...

a)

Proximity sensors

b)

Guesswork

c)

Vibes

d)

GPS from Google Maps

17.

Which sensor saves you from walking into a glass door?

a)

Ultrasonic sensor

b)

Pressure sensor

c)

Light sensor

d)

Your eyes (if open)

18.

If your car beeps while reversing, it’s saying...

a)

“Watch out!”

b)

“Let’s race!”

c)

“I’m bored.”

d)

“I love you.”

19.

Why do smartphones have so many sensors?

a)

To make them “smart”

b)

To confuse humans

c)

To spy on cats

d)

Just for decoration

20.

If sensors disappeared tomorrow, we’d have to...

a)

Open doors ourselves

b)

Turn on lights manually

c)

Drive carefully again

d)

All of the above

21.

Which sensor screams first when something’s burning?

a)

Smoke sensor

b)

Carbon monoxide sensor

c)

Temperature sensor

d)

Gas leak sensor

22.

Which sensor hates the dark?

a)

Light sensor (LDR)

b)

Temperature sensor

c)

Pressure sensor

d)

Proximity sensor

23.

Automatic doors open when you approach because of...

a)

Infrared sensor

b)

Ultrasonic sensor

c)

Pressure sensor

d)

Gyroscope

24.

Your phone turns off its screen near your ear — thanks to...

a)

Proximity sensor

b)

Accelerometer

c)

Light sensor

d)

Magnetometer

25.

Which sensor helps your refrigerator stay “cool”?

a)

Temperature sensor

b)

Humidity sensor

c)

Proximity sensor

d)

Sound sensor

26.

Your fitness band cheers when you walk — who’s counting?

a)

Accelerometer

b)

Gyroscope

c)

Proximity sensor

d)

Magnetometer

27.

Your car beeps when reversing because it’s using...

a)

Ultrasonic sensor

b)

Infrared sensor

c)

Light sensor

d)

Pressure sensor

28.

Which sensor helps Alexa know when you’re talking to her?

a)

Microphone (sound sensor)

b)

Proximity sensor

c)

Light sensor

d)

Temperature sensor

29.

A car turns on wipers automatically when it rains — thanks to...

a)

Rain sensor

b)

Humidity sensor

c)

Infrared sensor

d)

Motion sensor

30.

If a robot says, “Oops, I didn’t see that wall!” — who messed up?

a)

Proximity sensor

b)

Light sensor

c)

Temperature sensor

d)

Microphone