Mobile phone network

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Quick Questions

Shade in the A or B circle for each question.

1. How does a smartphone join the mobile phone network?

A Through a mobile phone tower

B Through a network cable plugged into the phone

2. Which one lets a phone go online using mobile data?

A A printer

B A mobile phone tower

3. Your family is driving through the bush and there is no Wi-Fi. Can your phone still go online?

A No, phones can only go online with Wi-Fi

B Yes, if a mobile tower is in range, using mobile data

4. Which statement about mobile data is true?

A It works without a cable or Wi-Fi

B It only works when you are plugged into a router

5. At the beach, a phone with no Wi-Fi nearby loads a map. What is it most likely using?

A Mobile data

B A network cable

Match the Pairs

Draw a line connecting each item on the left to its match on the right.

Left column		Right column
1mobile data		AA tall structure that sends and receives signals so phones nearby can join the network
2mobile tower		BWi-Fi ON, mobile data OFF
3On a bush hike with no Wi-Fi, a phone can still join the network through a tower		CLets a smartphone join a network through a mobile phone tower, with no cable or Wi-Fi needed
4At home a phone can use Wi-Fi from the router instead of mobile data		Dmobile data ON, Wi-Fi OFF
5A phone needs a Wi-Fi router to use mobile data.		EMobile data works in places with no Wi-Fi, as long as the phone can reach a mobile tower.
6Phones with mobile data stop working when there is no Wi-Fi.		FMobile data does not use a Wi-Fi router. It connects to a mobile phone tower.

Definitions

mobile data

Fill in the Blanks

Complete each line of code by filling in the missing parts.

phone.join(_____)

phone.___(mobileData)

mobileData.needsWifi = _____

__ wifi == false: phone.use(mobileData)

for place in ["bush", "beach"]: phone.use(__________)

Spot the Error

Shade in the letter of the line that contains an error.

Question 1

A network = wired_network

B device = smartphone

C joins_through = mobile_tower

D needs_cable = false

Question 2

A place = bush_campsite

B wifi_available = false

C tower_in_range = true

D can_connect = wifi_available

Question 3

A if connection == mobile_cable:

B use = mobile_tower

C else:

D use = wifi_router

Question 4

A tower = mobile_tower

B phone = smartphone

C link = cable(tower, phone)

D print(link)

Question 5

A wifi_range = one_building

B tower_range = one_room

C print(tower_range)

Answer Key

Mobile phone network

Section A: Quick Questions

A — Through a mobile phone tower

B — A mobile phone tower

B — Yes, if a mobile tower is in range, using mobile data

A — It works without a cable or Wi-Fi

A — Mobile data

Section B: Match the Pairs

mobile data → Lets a smartphone join a network through a mobile phone tower, with no cable or Wi-Fi needed

mobile tower → A tall structure that sends and receives signals so phones nearby can join the network

On a bush hike with no Wi-Fi, a phone can still join the network through a tower → mobile data ON, Wi-Fi OFF

At home a phone can use Wi-Fi from the router instead of mobile data → Wi-Fi ON, mobile data OFF

A phone needs a Wi-Fi router to use mobile data. → Mobile data does not use a Wi-Fi router. It connects to a mobile phone tower.

Phones with mobile data stop working when there is no Wi-Fi. → Mobile data works in places with no Wi-Fi, as long as the phone can reach a mobile tower.

Section C: Definitions

mobile data — The way a smartphone joins a network through mobile phone towers, so it works without a cable or Wi-Fi, even in places with no Wi-Fi.

Section D: Fill in the Blanks

phone.join(tower)

phone.use(mobileData)

mobileData.needsWifi = false

if wifi == false:
    phone.use(mobileData)

for place in ["bush", "beach"]:
    phone.use(mobileData)

Section E: Spot the Error

A — A smartphone joins a mobile network, not a wired one. A wired network needs cables. It should be network = mobile_network.

D — There is no Wi-Fi at the campsite, but a mobile tower is in range. The phone connects through the tower using mobile data, so it should be can_connect = tower_in_range.

A — Mobile data does not use a cable. The phone connects to a mobile tower. It should be if connection == mobile_data:.

C — A mobile tower and a phone are linked by radio signals through the air, not by a cable. It should be link = radio(tower, phone).

B — One mobile tower covers a large area, such as many streets. It is not limited to one room. It should be tower_range = many_streets.