Robotics Basics: sensors, motors & simple code

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I'm learning "Robotics Basics: sensors, motors & simple code" on The Future Market. Lesson 1: "What is a robot?".

What the lesson teaches:
- Most robots follow a loop: sense (sensors read the world), think (a computer decides), act (motors, lights or speakers do something). Then it repeats, many times a second.
- Sensors = inputs. Actuators (motors, servos, speakers, lights) = outputs. The controller is the small computer in between.
- A famous Canadian robot: Canadarm2 on the International Space Station. The Canadian Space Agency lists it as 17 m long, with a mass of 1,497 kg and 7 joints (three at the shoulder, one at the elbow, three at the wrist).
- Canadarm2 was launched on April 19, 2001, aboard Space Shuttle Endeavour, and Canadian astronaut Chris Hadfield helped attach it to the station.

The exercise I'm working on:
Pick three machines at home (for example a robot vacuum, an automatic door, a washing machine). For each one, write: what does it sense, what does it decide, what does it do? Decide if you'd call it a robot and why.

I'm stuck. Please:
1. Explain the main idea in plain, simple words with one everyday example.
2. Walk me through the exercise one small step at a time. Ask me what I've done so far before giving the next step.
3. Don't just give me the final answer. Help me do it myself, and check my work when I share it.

I'm a parent helping my child (about 8 years old) with a lesson called "What is a robot?" from the course "Robotics Basics: sensors, motors & simple code".

Here's what the lesson says:
A robot is a machine that can feel, think and move on its own, a bit like you. Your eyes and ears notice things, your brain decides, and your arms and legs move. A robot has sensors, a computer brain and motors for the same jobs.

The activity:
Pick three machines at home (for example a robot vacuum, an automatic door, a washing machine). For each one, write: what does it sense, what does it decide, what does it do? Decide if you'd call it a robot and why.

Please explain this so an 8-year-old understands: short sentences, a fun everyday example, and no hard words.
Then give me 3 simple questions I can ask my child to check they understood, and a way to do the activity together, one tiny step at a time.