The cards Question What are the three primary colours of light? Tap to flip Answer Red, green and blue. Question How is a secondary colour of light made? Tap to flip Answer By mixing two primary colours of light in equal amounts. Question What colour is made by mixing red, green and blue light in equal amounts? Tap to flip Answer White. Question Which part of the eye detects light? Tap to flip Answer The retina, the back surface of the eye. Question What do cone cells in the eye detect? Tap to flip Answer Colour. Question What do rod cells in the eye detect? Tap to flip Answer Brightness. Question What do we see when there is no light? Tap to flip Answer Black. Question How many types of cone cell are there on the retina? Tap to flip Answer Three: they detect red, green or blue light. Question What are display screens made of? Tap to flip Answer Tiny red, green and blue lights (pixels) that vary in brightness to make different colours. Question What does white light from the Sun and light bulbs consist of? Tap to flip Answer Light of all the colours in the visible light spectrum. Question What can a transparent triangular prism do to sunlight? Tap to flip Answer Split it up into a visible light spectrum. Question What is the visible light spectrum? Tap to flip Answer A rainbow pattern of coloured light, always with the colours in the same order. Question What decides which colour we see? Tap to flip Answer Which cone cells are triggered to send a signal to the brain. Question Is sunlight white or yellow? Tap to flip Answer White. Question What does it mean for a surface to scatter light? Tap to flip Answer To reflect light in many directions at once. Question What does the colour of an object in white or coloured light depend on? Tap to flip Answer The amounts of red, green and blue light it reflects. Question Why does a white object look the same colour as the light falling on it? Tap to flip Answer It reflects all colours of light. Question What happens to the colours of light that an object does not reflect? Tap to flip Answer They are absorbed. Question Which colours of light does a black object absorb? Tap to flip Answer All colours of light. Question In blue light, what colour does an object appear if it does not reflect blue light? Tap to flip Answer Black. Question What is a pinhole camera? Tap to flip Answer An empty, closed box with a tiny hole on the front face and a screen on the back face. Question How does light travel from a light source through the pinhole to the screen of a pinhole camera? Tap to flip Answer In straight lines. Question Describe the image produced by a pinhole camera. Tap to flip Answer Dim and inverted (upside down). Question What happens if more holes are added to a pinhole camera? Tap to flip Answer It produces multiple images. Question What happens to a pinhole camera's image if the hole is made larger? Tap to flip Answer It becomes brighter but blurred. Question How does the size of a reflection in a plane mirror compare with the object? Tap to flip Answer It is the same size. Question How far behind a plane mirror does a reflection appear? Tap to flip Answer The same distance behind the mirror as the object is in front of it. Question What does 'laterally inverted' mean? Tap to flip Answer Flipped horizontally. Question What is a virtual image? Tap to flip Answer An image that can be seen but cannot be projected onto a screen. Question How are virtual rays drawn in a ray diagram? Tap to flip Answer As dashed lines. Question Does a mirror actively flip an image to make it laterally inverted? Tap to flip Answer No: it simply reflects what is directly in front of each part of it. Question What is refraction? Tap to flip Answer Light changing direction when it enters a new medium. Question What is the normal in a ray diagram? Tap to flip Answer A line drawn at 90° to the surface of a material. Question When light enters a transparent material from air, which way does it turn? Tap to flip Answer Towards the normal. Question When light leaves a transparent material into air, which way does it turn? Tap to flip Answer Away from the normal. Question A ray enters and leaves glass through parallel sides. What happens to its direction? Tap to flip Answer It ends up in its original direction, but displaced to the side. Question Does a ray of light curve as it passes through glass? Tap to flip Answer No: it changes direction at the boundary. Question What is a lens? Tap to flip Answer A piece of glass or other transparent material shaped to refract light towards or away from a focus. Question What is the focal length of a lens? Tap to flip Answer The distance from the centre of the lens to where it focuses a distant object. Question What does a convex lens do to light rays? Tap to flip Answer Refracts them so they travel more towards each other. Question Does a converging lens refract light more at its edges or near its centre? Tap to flip Answer At its edges. Question Where are all the rays from one point on an object focused by a lens? Tap to flip Answer To the same point, forming the matching part of the image. Question Does covering half of a lens make half of the image disappear? Tap to flip Answer No. Where this deck sits in the curriculum Curriculum National Curriculum for England Stage Key stage 3 (Years 7–9) Course KS3 Science Unit Making images England's National Curriculum sets what is taught; the units and their order are Oak National Academy's. Flash Feed is not affiliated with Oak or any exam board.
How this deck was checked On 2026-11-02, every card was compared with its source: the lessons of Oak National Academy, a public body funded by England's Department for Education that publishes lessons for the national curriculum. Because the cards come from those lessons, no second source was sought. The comparison was done automatically, not by a teacher, so a card can still be wrong. Flash Feed is not affiliated with any source named here.
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A Science lesson by Oak National Academy licensed under Open Government Licence (OGL)
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