Year 7 Quiz 1

What is Binary?

• Another name for Base 2, made up of 0's and 1's

• Another name for Base 10, made up of the numbers 0-10

• Another name for Base 16, made up of the numbers 0-9 and A-F

• The numbers that identify a computer on a network

Put the following binary numbers in order of size (Largest to smallest)

• 0011

• 0110

• 1000

• 1101

Match the Base 16 numbers to their counterpart

• 12

• C

• 10

• A

• 15

• F

• 5

• 5

When converting between base 2 and base 16 you first split the byte in ​ (a)   . This is called a ​ (b)   .

• half
• quarters
• thirds
• nibble
• quibble
• snack

Complete the binary conversion table by adding the correct numbers

d

e

f

38

8

32

60

10

64

Which of the following is not true about binary.

• Binary is the language that computers speak

• In binary you can make any value

• Binary represents switches in a computer that are either turned on or off

• 1 = off

  0 = on

Answer explanation

Binary is used to represent switches in a computer that are on or off.

The false answer is that 1 = off and 0 = on. This is because in binary, 1 actually represents on and 0 represents off.

What is the base of the binary number system?

• Base 2

• Base 8

• Base 10

• Base 16

Which of the following numbers is a binary number?

• 101010

• 123456

• 789012

• ABCDEF

How many bits are in a byte?

• 4

• 8

• 16

• 32

Another word for Base 16 is: