Summary International A Level Physics Edexcel Unit 2 (Waves) with questions and answers 100%Correctly verified answers latest update 2025/2026 RATED A+

International A Level Physics Edexcel Unit
2 (Waves) with questions and answers
100%Correctly verified answers latest
update 2025/2026 RATED A+
What is amplitude? - CORRECT ANSWERS The maximum displacement from the central
equilibrium position.



What is frequency? - CORRECT ANSWERS The number of waves that pass a fixed point in a
certain amount of time.



What is wavelength? - CORRECT ANSWERS The difference in distance between successive
crests of a wave.



What is time period? - CORRECT ANSWERS The time for one completed wavelength.



How do you find frequency in terms of time period? - CORRECT ANSWERS Frequency = 1/time
period



What are the seven waves of the electromagnetic spectrum? - CORRECT ANSWERS Radio
waves

Microwaves

Infrared

Visible light

Ultraviolet

X-rays

Gamma rays

, Which wave in the EM spectrum has the longest wavelength? - CORRECT ANSWERS Radio
waves



Which wave in the EM spectrum has the highest frequency? - CORRECT ANSWERS Gamma rays



Name one use for radio waves. - CORRECT ANSWERS Broadcasting



Name one use of microwaves. - CORRECT ANSWERS Heating food in a microwave oven



Name one use of infrared waves. - CORRECT ANSWERS Seeing in the dark.



Name one use of visible light. - CORRECT ANSWERS Seeing



Name one use of ultraviolet waves. - CORRECT ANSWERS Sterilising surgical equipment



Name one use of X-rays - CORRECT ANSWERS To see inside bodies for broken bones



Name one use of gamma radiation - CORRECT ANSWERS Kill cancerous cells



What is the speed of EM waves? - CORRECT ANSWERS 3 x 10^8



What is the equation for the speed of waves? - CORRECT ANSWERS v = frequency x
wavelength



What type of wave is a sound wave? - CORRECT ANSWERS Longitudinal