Heat Transfer
The transfer of heat through direct contact between particles is called this.
What is conduction?
When light bounces off a surface, this process occurs.
What is reflection?
This phenomenon makes the sky appear blue on a clear day.
What is scattering of light?
The distance between two consecutive wave crests is called this.
What is wavelength?
The statement you are testing in an experiment. Sometimes referred to as a prediction or guess.
Hypothesis
This type of heat transfer occurs in liquids and gases, where warmer particles move and carry heat with them.
What is convection?
The bending of light when it passes from one medium to another is called this.
What is refraction?
Splitting white light into its different colours creates this effect.
What is dispersion?
This property measures the number of waves that pass a point in one second.
What is frequency?
This variable is changed in an experiment to test its effects.
What is the independent variable?
The Sun’s heat reaches Earth through this method, which does not require particles.
What is radiation?
Name the law that states the angle of incidence equals the angle of reflection.
What is the law of reflection?
Raindrops cause sunlight to spread into a rainbow due to this process.
What is dispersion?
The height of a wave from its middle to its top is known as this.
What is amplitude?
This term is used to describe how close your results are to the expected value.
What is accuracy?
Metal pans get hot quickly on a stove due to this type of heat transfer.
What is conduction?
Glass appears to change the direction of light entering it due to this property.
What is refraction?
Which colour of light is scattered the most by Earth's atmosphere?
What is blue?
Sound travels fastest through this type of material.
What is a solid?
How many independent variables should there be in an experiment?
Exactly one.
Explain why convection cannot happen in solids.
What is because the particles in solids cannot move freely to carry heat?
When light enters water from air, it slows down and bends. Why does this happen at the particle level?
What is because light interacts differently with the more closely packed particles in water compared to air?
Explain why sunsets appear red or orange, based on scattering.
What is because longer wavelengths (red/orange) scatter less than blue, so they dominate as the sun sets?
Name two ways you can increase the energy of a wave.
What are by increasing its amplitude or frequency?
Explain how to improve the validity of your results.
Control variables effectively to ensure the dependent variable is only affected by the independent variable and not some other uncontrolled factor.