Part A: Light
Why can the same fruit look different under daylight and under a warm indoor lamp?
Part B: Sound
Why does a clap sound sharper in a tiled kitchen than in a room with curtains and soft furniture?
Part C: Flow
Why can a small change in a faucet opening create a big change in the water jet?
Part D: With numbers
4. You clap and hear the echo off the far kitchen wall s later. Sound travels at 343 m/s. How far away is the wall, in metres? (Remember: the sound goes there and back.)
5. A blender whines at Hz. What is the wavelength of that sound in air, in centimetres? (λ = v/f)