Question 1

The image above shows a wave with changing properties. What does the increasing frequency and decreasing wavelength from left to right represent in the context of the electromagnetic spectrum?

Accepted Answer

The transition from radio waves to gamma rays

Question 2

Which equation correctly relates the speed $$v$$, frequency $$f$$, and wavelength $$\lambda of a $$wave as depicted in the image?

Accepted Answer

$$v = f \lambda$$

Question 3

In the visible spectrum shown in the image, which color corresponds to the shortest wavelength?

Accepted Answer

Violet

Question 4

If the frequency of a wave increases while its speed remains constant, what happens to its wavelength?

Accepted Answer

The wavelength decreases

Question 5

Which region of the electromagnetic spectrum is represented by the tightly packed waves on the right side of the image?

Accepted Answer

Gamma rays

Question 6

What is the approximate speed of all electromagnetic waves in a vacuum?

Accepted Answer

$$3.0 	imes 10^8$ m/s

Question 7

Which of the following best describes the relationship between energy and frequency for electromagnetic waves?

Accepted Answer

Energy increases as frequency increases

Question 8

Which equation gives the energy $$E of a $$photon in terms of its frequency $$f$$?

Accepted Answer

$$E = hf$$

Question 9

Which of the following is a correct order of electromagnetic waves from lowest to highest frequency?

Accepted Answer

Radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays

Question 10

A hospital uses electromagnetic waves for both imaging and sterilization. Which two regions of the spectrum are most likely used for these purposes?

Accepted Answer

X-rays for imaging and gamma rays for sterilization

Cambridge IGCSE Physics 0625 Syllabus: Comprehensive Study Guide

Study Guide - Practice Questions

Study Guide - Flashcards