Light Travels in Straight Lines

Description

Recognise that light appears to travel in straight lines and use this to explain how we see objects and why shadows have the same shape as the objects that cast them

Mastery Evidence

• ✓ State and demonstrate that light travels in straight lines (e.g. can't see around corners, laser pointer)
• ✓ Use straight-line light to explain why shadows have the same outline shape as the object
• ✓ Draw ray diagrams showing light travelling from source, being blocked by object, creating shadow on screen