Digital currency
Name:
Date:
Class:
A
Quick Questions
Shade in the A or B circle for each question.
1. Which statement describes a digital currency?
2. Where does a digital currency exist?
3. Can you hold a digital currency in your hand?
4. Which one is a physical form of money, NOT a digital currency?
5. How is a digital currency stored and sent?
B
Match the Pairs
Draw a line connecting each item on the left to its match on the right.
| Left column | Right column | |
|---|---|---|
| 1digital currency | AMoney that only exists electronically, with no coins or notes | |
| 2a balance of 50 units stored on a phone | BDigital currency has no coins or notes. It only exists electronically, so it should say it has no physical form. | |
| 3Digital currency only exists as data on computers | Cbalance = 120 stored in a database | |
| 4Digital currency is stored and sent using devices | DDigital currency cannot be held in your hand. It is stored as data on a device, not carried as something physical. | |
| 5Digital currency is made of coins and notes | Esend(phone, 5, friend) | |
| 6You can keep digital currency in your pocket | FDigital currency held as data on a device, which you cannot hold in your hand |
C
Definitions
digital currency
D
Fill in the Blanks
Complete each line of code by filling in the missing parts.
1.
A digital currency only exists
______________, with no coins or notes.
2.
Digital currency exists only as ____
on computers.
3.
You cannot hold digital currency in your
____.
4.
Digital currency is stored and sent using
_______ such as phones and computers.
5.
Money that is only electronic is called
a digital ________.
E
Spot the Error
Shade in the letter of the line that contains an error.
Question 1
A
currency ← 'digital'
B
has_coins ← FALSE
C
has_notes ← FALSE
D
can_hold ← TRUE
Question 2
A
balance ← 50
B
form ← 'coins and notes'
C
OUTPUT form
Question 3
A
IF is_digital = TRUE THEN
B
type ← 'digital currency'
C
OUTPUT type
D
ENDWHILE
Question 4
A
coins ← 25
B
notes ← 0
C
data ← 1000
D
OUTPUT data
Question 5
A
device ← 'phone'
B
wallet ← 'on ' + device
C
OUTPUT walet
Answer Key
Digital currency
Section A: Quick Questions
Q1
A — Money that only exists electronically, with no coins or notes
Q2
A — As data on computers
Q3
B — No, it is not physical
Q4
B — A paper banknote
Q5
A — Using devices such as computers and phones
Section B: Match the Pairs
Q1
digital currency → Money that only exists electronically, with no coins or notes
Q2
a balance of 50 units stored on a phone → Digital currency held as data on a device, which you cannot hold in your hand
Q3
Digital currency only exists as data on computers → balance = 120 stored in a database
Q4
Digital currency is stored and sent using devices → send(phone, 5, friend)
Q5
Digital currency is made of coins and notes → Digital currency has no coins or notes. It only exists electronically, so it should say it has no physical form.
Q6
You can keep digital currency in your pocket → Digital currency cannot be held in your hand. It is stored as data on a device, not carried as something physical.
Section C: Definitions
Q1
digital currency — Money that only exists electronically as data on computers. It has no coins or notes, cannot be held in your hand, and is stored and sent using devices.Section D: Fill in the Blanks
Q1
A digital currency only exists
electronically, with no coins or notes.Q2
Digital currency exists only as data
on computers.Q3
You cannot hold digital currency in your
hand.Q4
Digital currency is stored and sent using
devices such as phones and computers.Q5
Money that is only electronic is called
a digital currency.Section E: Spot the Error
Q1
D — Digital currency cannot be held in your hand because it only exists as data. can_hold should be FALSE.
Q2
B — Digital currency only exists electronically. It has no coins or notes, so form should be 'electronic'.
Q3
D — An IF statement must be closed with ENDIF, not ENDWHILE, which closes a WHILE loop.
Q4
A — Digital currency has no coins, so the number of coins should be 0. The value exists only as data.
Q5
C — The variable name is misspelled. The wallet stored on the device is called wallet, so it should be OUTPUT wallet.