Smart Lock
What happens if someone shakes the lock
The vibration sensor detects movement and instantly triggers the alarm.
What travels faster: sound or light?
Light
What force pulls objects toward Earth?
Gravity
What do we call a group of living organisms interacting with their environment?
Ecosystem
What type of energy comes from the Sun?
Solar energy
What do you think will happen when I arm it?
The system goes into monitoring mode. It’s basically ‘watching’ for any attack.
Which weighs more: 1kg of steel or 1kg of feathers?
Same
What is the unit used to measure force?
Newton
What is the role of plants in a food chain?
Producers
Which energy source is renewable: coal or wind?
Wind
Why Bluetooth instead of WiFi?
Bluetooth uses way less battery and works perfectly for short distance control.
What part of the body uses the most energy?
Brain
What happens to an object’s motion if no forces act on it?
It continues moving at constant speed (Newton’s First Law)
What do we call animals that eat both plants and other animals?
Omnivores
What do we call energy sources that will run out over time?
Nonrenewable energy
What does this Hall sensor do?
It detects if the lock is open or closed.
Specifically, it detects magnet on shackle; LOW = locked, HIGH = open
What planet has the strongest gravity?
Jupiter
What form of energy is stored in a compressed spring?
Elastic potential energy
What is the term for animals that hunt other animals for food?
Predators
Name one greenhouse gas that contributes to climate change.
Carbon dioxide (CO₂)
What does this Vibration sensor do?
It detects shaking or cutting attempts.
What happens to sound in space?
It cannot travel (no air to carry sound)
Why do you feel pushed back when a car suddenly accelerates?
Inertia (your body resists change in motion)
What happens to an ecosystem if a top predator is removed?
The balance is disrupted (other populations can increase uncontrollably)
Why is using renewable energy better for the environment?
It produces less pollution and doesn’t run out