Checklist Flashcards
What are the effects of breaking a circuit?
The electrons stop flowing an the electricity stops - circuits need to be close to work
What is the amplitude on a wave diagram?
The distance between the peak or trough to the middle line
What is the wavelength on a diagram?
The distance between peak and peak or trough and trough
What is the law of reflection?
The angle of incidence is the same as the angle of reflection
What do colour filters do to light?
They allow the filter colour to pass through (if it has that colour in the light) and absorbs the other colours
What is refraction?
When light passes through a different medium and bends
How are shadows formed?
Light travels in straight lines.
Opaque objects do not allow light to travel
through them.
When light is shone on an opaque object a shadow forms behind it where the light cannot reach
If the object is closer to the light, will it be clearer of blurrier?
Blurrier - more diffraction occurs
When the wave looks more squashed what happens?
The frequency is higher so pitch increases
What the wave has large amplitude what happens?
The amplitude increases (volume)
What is sound measured in?
Decibels
How can heat travel through solids?
Conduction - When the particles bounce off each other and the energy is transferred
How can heat be transferred through liquids and gasses?
Convection - Areas of a liquid or gas heating or cooling greater than their surroundings, causing differences in temperature
What are the 4 methods of heat transfer?
Conduction
Convection
Radiation
Evaporation
How can we use insulators to stop thermal transfer?
Slowing conductive heat flow and convective heat flow. Radiant barriers and reflective insulation systems work by reducing radiant heat gain
