3/22/25, 11:58
AM
BTEC APPLIED SCIENCE - PHYSICS EXAM QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
Terms in this set (22)
State what is meant by the A signal that can have any value
term analogue signal (1
mark)
State what is meant by the A signal that has 2 values only which are 0 and 1.
term digital signal (1 mark)
Explain 2 advantages of 1.Digital Signals can carry more info than
using digital signals Analogue signals.
instead of analogue 2.Less interference so better quality is produced.
signals to transmit
television programmes. (2
marks)
Give 2 other differences 1.Visible light is electromagnetic whereas sound is
between visible light a vibration
waves and sound waves. 2.Sound waves has a lower frequency than visible
1/
6
, 3/22/25, 11:58
AM
(2 marks) light.
Explain the 1.Light waves have a higher frequency than
advantages and radio waves so light waves would take less time to
disadvantages of transfer information.
using radio waves instead 2.Some of the radio waves reach the Earth's
of light waves to send surface so they receive a clear signal.
large amounts of
information from the
satellite to the surface of
the Earth. (4 marks)
1.Infrared doesn't interfere with other devices -
has higher frequency than Bluetooth
Evaluate the strengths and 2.This means there will be better quality between
weaknesses of using: the devices.
• An infrared 3.Infrared is not able to transmit through
remote control most materials.
• A Bluetooth 4. Bluetooth can be used on more than 1 device.
remote control 5.Can work through walls.
to control the home
6.It can interfere with other Bluetooth devices if close
cinema system. (6 marks) by.
2/
6
AM
BTEC APPLIED SCIENCE - PHYSICS EXAM QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
Terms in this set (22)
State what is meant by the A signal that can have any value
term analogue signal (1
mark)
State what is meant by the A signal that has 2 values only which are 0 and 1.
term digital signal (1 mark)
Explain 2 advantages of 1.Digital Signals can carry more info than
using digital signals Analogue signals.
instead of analogue 2.Less interference so better quality is produced.
signals to transmit
television programmes. (2
marks)
Give 2 other differences 1.Visible light is electromagnetic whereas sound is
between visible light a vibration
waves and sound waves. 2.Sound waves has a lower frequency than visible
1/
6
, 3/22/25, 11:58
AM
(2 marks) light.
Explain the 1.Light waves have a higher frequency than
advantages and radio waves so light waves would take less time to
disadvantages of transfer information.
using radio waves instead 2.Some of the radio waves reach the Earth's
of light waves to send surface so they receive a clear signal.
large amounts of
information from the
satellite to the surface of
the Earth. (4 marks)
1.Infrared doesn't interfere with other devices -
has higher frequency than Bluetooth
Evaluate the strengths and 2.This means there will be better quality between
weaknesses of using: the devices.
• An infrared 3.Infrared is not able to transmit through
remote control most materials.
• A Bluetooth 4. Bluetooth can be used on more than 1 device.
remote control 5.Can work through walls.
to control the home
6.It can interfere with other Bluetooth devices if close
cinema system. (6 marks) by.
2/
6
