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Listed under:  Science  >  Forces and energy  >  Waves (Energy)  >  Reflection (Energy)
Moving Image

Some objects look darker when wet

Why do some things look darker when they're wet, such as sand or clothing, and other things like stainless steel sinks don't? Watch as presenter Bernie Hobbs explains what happens when light hits water and how this influences the appearance of wet objects. This clip includes an animation that demonstrates the way light ...

Moving Image

Daisies describe an ecosystem

Ecosystems are affected by many factors including increasing temperatures, which many scientists believe threaten natural systems on Earth today. This creative clip uses a theoretical world of black and white daisies to show how changes to the natural reflectivity of a planet's surface impacts temperatures and populations. ...

Interactive resource

UV Index: simulator

Use a simulator to test the level of ultraviolet (UV) rays. Test the effects of cloud, shade and ground surface: grass, sand, water and snow. Notice that the amount of UV light that reaches a person varies according to the reflectivity of their surroundings. Use simulation results to answer a series of questions. For example, ...

Interactive resource

Seeing with sound

Explore how sound travels as a wave. Examine diagrams and simulations; answer questions about sound properties. Test the effects of changing wave properties: frequency, wavelength and amplitude. Transmit sounds in a range of mediums: air, water, steel or a vacuum. Find out how echolocation works. Measure speed and direction ...

Interactive resource

Optics and images: plane mirrors

Position an object and a flat mirror to reflect light rays and produce images. Predict the size and position of the reflection produced. This learning object is the first in a series of three objects that progressively increase in difficulty. The series is also packaged as a combined learning object.

Interactive resource

Light and reflection: reflecting off surfaces

Observe balls bouncing off surfaces of different roughness. Arrange the surfaces according to how much they scatter the balls. Observe light beams reflecting off surfaces of different roughness. Arrange the surfaces according to how much they scatter the light beams. Choose a reflector to help a castaway flash a beam of ...

Interactive resource

Light and reflection: under the spotlight

Set up stage lighting for a rock band. Select a convex reflector to floodlight the band or a concave reflector to highlight one band member. Choose a lighting pattern to suit the order in which music is played. Compare the effect of spotlights and floodlights. This learning object is one in a series of four objects.

Interactive resource

Electrifying concert: lighting

Align a light source with holes in panels to test the direction that light rays travel. Assemble a spotlight and position its parts to create a range of lighting effects. This learning object is one in a series of two objects. The series is also packaged as a combined learning object.

Interactive resource

Lighting: assemble the spotlight

Assemble a spotlight and position its parts to create a range of lighting effects. This learning object is one in a series of two objects.

Interactive resource

Colours of objects

Find out why some things appear coloured and others white or black. View four cards of unknown colour under four different coloured lights: red, green, blue and white. Notice how the cards can have different colours under different lights. Record your observations for each card in turn, and then use this data to determine ...

Teacher resource

Using 'Light and vision' - Teacher idea

This Teacher idea explores the eye as a receptor of light. Students build on prior understandings of light relating to wave theory and particle theory, and move on to investigate reflection, refraction, optics and prisms. It includes a unit of work developed and trialled by a teacher.

Teacher resource

Light and the law of reflection: Teacher idea

In this Teacher idea, students explore how light travels and the law of reflection. They consolidate their knowledge using of a range of learning objects then explore the eye and the use of lenses. It includes a unit of work developed and trialled by a teacher.

Image

'Jazz', c1930

This is a black-and-white photograph taken around 1930 by John Kauffmann (1864-1942), measuring 22.0 cm x 31.2 cm. It captures the reflection of a timber rowboat in water - a section of the boat can be seen in the upper right corner of the image. The slight rippling of the water's surface has broken up the reflection of ...

Image

Views of the male Richmond birdwing butterfly

This is a colour photograph of a dorsal (top) and a ventral view of a male Richmond birdwing butterfly ('Ornithoptera richmondius'). A scale is included. (Classification - Phylum: Arthropoda, Class: Hexapoda, Order: Lepidoptera, Family: Papilionidae.)

Video

'Window into space', 1965 - asset 1

This is a clip taken from a 22-minute colour documentary developed by the Division of Radiophysics of the Australian Commonwealth Scientific and Industrial Research Organisation (CSIRO) in 1965 to explain the operation and work of the Parkes Radio Telescope in New South Wales. This clip shows diagrams of how light waves ...

Interactive resource

EagleCat: reflect

Explore the reflection of light. Change the angle of incidence by moving the light source and observe the change in the angle of reflection. Simulate a non-smooth surface by changing the angle of the reflective mirror. Test the hypothesis: 'the angle of reflection is equal to the angle of incidence only when the mirror ...