Show:
The nature of waves
The properties of waves
Easter jokes
More about waves
Wave practicals
100
Give an example of a transverse wave
Light
100
define amplitude
maximum displacement from undisturbed position
100

What happened to the Easter Bunny when he misbehaved at school?

He was eggspelled!

100
How do we hear a bee?
The vibrations of the wings
100
Describe how you can observe mechanical waves?
Using a slinky - observe areas of compression and areas of rarefaction.
200
What is the difference between a longitudinal and transverse wave?
The oscillations are parallel to the direction of energy transfer in a longitudinal wave
200
define wavelength
the distance from one point on the wave to the equivalent point on the adjacent wave
200

What day does an Easter egg hate the most?

Fry-days.

200
Define echo
Reflection of sound that can be heard
200
Give 2 ways in which the ripple tank experiment can be made more accurate?

1. Use reference points

2. Use a stopwatch

300
What is a medium? Give an example.

A substance/something through which another substance/something travels through.

Air/water

300
define frequency
number of waves per second
300

How do bunnies stay healthy?

Eggercise

300
What is the speed of sound?
330m/s
300
How do you know if a bell jar works?
You cannot hear the sound of the bell when it is still ringing inside the jar
400
Give examples of electromagnetic waves
light, radio, microwave
400
wave speed equation
wave speed = frequency x wavelength
400

What do you call a mischievous egg?

A practical yolker

400
Which experiment can you use to investigate the fact that sounds cannot travel through a vacuum. AND - how do you know if it works?
Bell jar - bell works but cannot be heard
400
Describe a practical method you could use for reflection?
Shine a light from the lamp, use a slit to angle the light and then use a mirror to reflect it back
500
Why is there no sound in space?

Sounds are just vibrations. Sound needs a medium to travel – air. No air in space - vacuum. Sound cannot travel through a vacuum as there is no medium for sound to travel through a s there are no particles to vibrate

500
Which practical can you use to look at the properties of waves
Ripple tank
500

What happened to the egg when he was tickled too much?

He cracked up

500
What are sound waves?
Sound waves are vibrations that travel through a medium (a substance).
500
Describe a practical you could use to investigate refraction?
Use light box, slit and glass block. Draw around the glass block and shine the light through the slit. Students should notice that the light ray coming out the other end is not at the same angle as it was when it went in.