Starter quiz
- Light travels in __________ lines.
- thick
- wavy
- dotted
- straight ✓
-
- Which of these is not a light source?
torch
star
candle
high-vis jacket ✓
- Light is ______ when it hits a surface and bounces off in another direction.
- 'reflected' ✓
- What is a light ray?
- All of the light given out from a light-source.
- An arrow used in a diagram to represent light. ✓
- All of the light reflected from a non-light source.
-
- What is the name of the opening in the eye that allows light to enter?
- iris
- pupil ✓
- eyelid
- eyelash
-
- If an object is not a light source, where does the light come from that allows us to see it?
- our eyes
- a light source ✓
- the object
-
Exit quiz
- When light is reflected off the surface of an object, it changes ...
- colour.
- speed.
- direction. ✓
-
Which of these surfaces would be the best to use if you want to deliberately change the direction of a beam of light?- a wooden table
- a painted wall
- a blackboard
- a mirror ✓
-
- What are scientific models useful for?
- to decorate science centres
- to advertise lab coats and goggles
- to describe something that can't be experienced directly ✓
-
Which of these is a good model to help us understand how light is reflected?- hitting a ball with a hockey stick
- using a 3-D model of a lamp
- using a cardboard cut-out of the Sun
- rolling a ball towards a wall at an angle ✓
-
A ______ is a piece of equipment with angled lenses or mirrors to enable you to see over walls or around corners.- 'periscope' ✓
- Which of these diagrams correctly show how light is reflected through a periscope?
Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- When light is reflected off the surface of an object, it changes direction.
- Scientific diagrams and models can be used to show how light changes direction when it is reflected off surfaces.
- Mirrors are sometimes used to deliberately change the direction of a beam of light.
- A periscope has angled mirrors to enable you to see over walls or around corners.
Common misconception
Light can only reflect off shiny surface; light does not always travel in straight lines when it bounces off a mirror.
Diagrams and investigations will be used to address the misconceptions.
Keywords
Reflected - If light is reflected, it is bounced off a surface.
Direction - Direction is the path that something takes to reach a particular place
Model - A model is used to describe something that can't be experienced directly.
Angle - An angle is the space between two straight lines which join at a vertex or point.
Periscope - A periscope is a piece of equipment that uses angled mirrors to enable you to see over walls or around corners.
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