Waves
What type of wave is a Mexican wave?
Transverse wave
What is light?
Electromagnetic radiation.
Which is faster, light or sound?
Light
What is energy?
The ability to do work.
What type of energy is stored inside of a stretched rubber band.
Elastic potential energy
What type of wave is a water wave?
Transverse
True or false: Light requires a medium such as air or water to travel through.
False. Light does not require a medium, it can travel through a vacuum.
What property or quality of sound does frequency relate to?
Pitch
What are the units for energy?
Joules
What is the name for the portion of the electromagnetic spectrum that is below (longer wavelength) the colour red?
Infrared
What is a wave?
A disturbance in a medium that transports energy but not matter.
What is the difference between the terms "transparent" and "translucent"?
Transparent: a material that is perfectly clear; allows all light through.
Translucent: a material that lets some, but not all light through; hazy or coloured in appearance.
What property or quality of sound does amplitude correspond to?
Volume/loudness
How is energy efficiency calculated?
(Useful output energy/total output energy) x 100
When drawing a reflection ray diagram, what is the "normal"?
The line perpendicular to the mirror plane.
What is the amplitude of a wave?
The distance a wave moves from its resting position.
What are the colours of the visible light spectrum, in order from longest to shortest wavelength?
Red, orange, yellow, green, blue, indigo, violet
What are the names for the areas of a sound wave where the particles are 1. closer together and 2 farther apart?
1. Compression
2. Rarefaction
How do you interpret a Sankey diagram to know the proportion/amount of energy that is transferred/transformed into different forms?
The relative widths of the arrows indicate the amount of energy.
What state of matter does sound travel fastest through?
Solid
What is the frequency of a wave, AND what are the units for frequency?
The number of oscillations produced in a certain amount of time. Measured in Hertz.
What is the law of reflection?
The angle of incidence equals the angle of reflection.
Explain the Doppler effect.
The Doppler effect is the change in the frequency of a wave in relation to an observer who is moving relative to the source of the wave.
Identify the energy transfers and transformations that occur from the Sun to a person running.
What is the speed of 1. Sound and 2. Light? (Close answers will be accepted)
Sound: 343 m/s
Light: 299 792 458 m/s