4.07 Physics - Computers

TY Physics - Computers

Multiple Choice

What are the only two numbers you can use in binary?

• 0 and 1
• 1 and 2
• 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
• 1, 2, 4, 8, 16

Multiple Choice

How would you write the number two in binary?

• 1001
• 0001
• 0000
• 0010

Multiple Choice

A bit is 

• a numerical label assigned to each device.
• the smallest unit of data in a computer.
• a keyboarding term for typing.
• is a numeral system made up of 16 symbols.

Multiple Choice

Computers can only understand 0s and 1s.

• True
• False

Multiple Choice

How would you write the number 4 in binary code?

• 0100
• 0000
• 0001
• 0010

Multiple Choice

Convert 37 to binary

• 00100101
• 00100011
• 00100111
• 01000101

Multiple Choice

If a binary number ends with a 1, it must be...

• An odd number
• An even number
• A prime number
• The number 12

Fill in the Blank

Decipher

01101101

01101111

01101110

01101011

01100101

01111001

Multiple Choice

The type of signals sent by GPS satellites are:

• global positions

• radio signals

• Bluetooth

• Wifi

Multiple Choice

A satellite that travels in an orbit that exactly matches the Earth's rotation is traveling in a(n)

• low Earth orbit (LEO).
• low stationary orbit (LSO).
• geostationary orbit (GEO).
• high Earth orbit (HEO).

Multiple Choice

Today, the number of satellites orbiting the Earth is in the...

• hundreds.
• thousands.
• billions.
• millions.

Multiple Choice

What is the minimum number of satellites required to locate the position of a GPS receiver?

• 1

• 2

• 3

• 24

Fill in the Blank

The GPS receiver collects the information from a satellite and calculates its distance from the satellite using the formula: DISTANCE = SPEED X what?

Multiple Select

Satellites transmit which TWO exact pieces of information:

• the position of the GPS receiver

• the speed of the satellite

• the position above the Earth

• the time

Multiple Choice

True or False. Quantum computers are powerful, but not reliable yet.

• True

• False

Multiple Select

Why are we not able to use quantum computers in our homes? Select TWO reasons.

• It needs to be completely isolated

• It is too expensive

• It is too heavy

• It has to be kept at absolute zero temperature

Multiple Choice

True or False. Quantum encryption keys can be hacked and broken into.

• True

• False

Multiple Select

What can quantum computers be used for? Select TWO.

• Homework

• Artificial Intelligence

• Google Docs and Slides

• Simulations/Predictions

• Computer games

Multiple Choice

What does 'entanglement' mean?

• Two particles are connected

• Two particles are seperate

• Two particles are different

• Two particles are independent

Multiple Choice

Quantum computers are very good at dealing with...

• Certainty

• Uncertainty

• Reliability

• Clarity

Multiple Choice

When the information is between 0 and 1 in a quantum computer, what do we call this?

• Same position

• Different position

• Superposition

• Ordinary position

Multiple Choice

What do we call the pieces of information in a quantum computer?

• Bits

• Bytes

• Qubits

• Qubytes