Microwaves are not only used to heat food. Mobile phones utilise this type of electromagnetic radiation, allowing us to communicate over large distances. Physics - Waves - Learning Points. Mobile phones work by converting the sound into...

Humans are not able to see infrared radiation without specialised equipment, but certain snakes can detect infrared radiation. See how they use it to deadly advantage. Physics - Waves - Learning Points. The pit viper uses special sensors...

The different ways animals view the world, from colour perception to UV rays.
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rning Points.
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Open a discussion on what has been already learnt in a topic,...

We can see our surroundings because of light energy. Whether light waves are being emitting from a source or being reflected, this form of energy is vital to life on Earth. Physics - Waves - Learning Points. Light is an energy that...

The properties of high frequency electromagnetic radiation are incredibly important in the world of medicine, allowing physicians to look inside the human body and even combat cancer. Physics - Waves - Learning Points. X-rays and gamma...

From radio waves to gamma rays, the electromagnetic spectrum is useful in different ways. How does this radiation differ and how can they be used? Physics - Waves - Learning Points. Electromagnetic radiation exists along a continuous...

We use a prism to split white light into its constituent colours. Light is passed through a slit in a screen before it hits the prism. The prism refracts the light and we can see the different colours. A second slit can be used to see...

A moving wave in which the oscillations of the medium are at a right angle to the direction of travel. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

By the end of this learning object, the student will be able to: Summarize the main points of light wave.86736

By the end of this learning object, the student will be able to: Recognize the spectrum colors.86731

This video is explaining how X-rays work for kids.

This video covers:

- The idea that objects can absorb and emit energy in the form of radiation, and that this can affect their temper
ature
- What determines which type of radiation
is emitted
- Wavelength-in
tensity...

In this video we cover the following:

- The 7 different types, and order, of the waves in the electromagnetic spe
ctrum
- The phrase ROYGBIV to help you remember the order of colours in the visible ligh
t spectrum
- The...

This video covers:

- Why objects appear the colour th
ey do
- What happens when light is absorbed, reflected and tr
ansmitted
- What makes objects appear opaque, transparent an
d translucent
- How

colour...

This video covers:

- The different colours of visible l
ight
- How light is used is optic
al fibres
- The concept of fluorescence with ultrav
iolet radiation
- How ultraviolet radiation can

be used in...

This is one of these questions where most feel like they should know the answer, many seem to know the answer, but then somehow everyone tells a different story. In this deep dive, we get to the bottom of why it is really cold in the...

A black body is a theoretical or imaginary object that perfectly absorbs all incoming electromagnetic radiation, and also emits radiation, like heat and visible light, based on its temperature. A black body is considered theoretical...

This video will explain the electromagnetic radiation spectrum, what it is, and how it can be used to observe space objects.

Greenhouse phenomenon

The video discusses the production of electromagnetic waves from atoms and nuclei. It covers different examples of producing radio waves, microwaves, x-rays, gamma rays, infrared radiation, visible light, and ultraviolet light. The video...

Physics Quiz. 5 Popular questions answered. Can you solve these questions?

Why do spaceships heat up when entering earth but not when exiting?, Why can I touch aluminum foil in the oven and not get burned?, Why are we able to see...

Lesson 18 (Electric Charge and Light) of Dianna's Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need a review of AP Physics concepts before the exam? This course is for you!...

Learn the basics about the natural greenhouse effect. The atmosphere helps to keep our planet warm by making it harder for the energy we get from the sun to escape back to the universe. Our atmosphere is held to the earth by the force of...

This lecture video discusses the health risks associated with exposure to electromagnetic waves on the electromagnetic spectrum. The video covers different types of electromagnetic radiation, from microwaves to X-rays and gamma rays, and...