GCSE Physics – Light and Electromagnetic spectrum – 1 – Exam Style Questions with Answers

X-rays are ionising radiation.

State one other ionising radiation in the electromagnetic spectrum.

Complete the sentence :

Three colours of the spectrum of visible light in the correct order are ________

State one way in which microwave radiation can be harmful to people.

Complete the sentence:

A bee’s wings flap up and down with a frequency of 230 Hz.

This is a frequency of  ______

5 The electromagnetic spectrum has many parts. One of these parts is called visible light.

How many different colours are there in visible light?

 Bees have several colours. Which of these colours appears in a pure spectrum of visible light?

Cobalt-60 is a radioactive substance.

A nucleus of cobalt-60 contains 27 protons and 33 neutrons.

Complete the sentence :

The number of electrons in a neutral atom of cobalt-60 is

State one type of wave that is ionising.

State which type of wave has the longest wavelength.

Gamma radiation from cobalt-60 can be used to destroy tumours. The diagram shows how gamma radiation is used to destroy a brain tumour.

Complete the sentence :

Gamma radiation is used because ________

State which type of wave can be split into different colours.

Complete the sentence .

A student correctly estimated the length of a bee.

The length of a bee is about 2.0___

State one harmful effect of X-rays on living matter.