Science Term 1 Test Revision

• What are particle formations like in solids?

  Very close
• What pattern do particles in liquids have?

  No fixed pattern, will fill up any shape of a container
• How many bonds with particles do gasses have?

  0
• What is the movement of particles for solids?

  They vibrate around their fixed positions
• What is the particle energy like in a gas?

  High energy
• What is the energy like in a liquid?

  Medium energy
• What is the energy like in a solid?

  Low energy
• Explain convection:

  Particles become less dense and rise, then lose energy and become more dense causing them to fall back down.
• Explain conduction:

  Heat transferring when particles collide.
• Why is conduction best with solids?

  Because of the close particle formation
• What is a medium in sound waves?

  A medium is an object that the waves travel through
• What is a compression?

  They are regions with close particle formations with high pressure
• What is a rarefraction?

  Particles spread out with low pressure
• Is sounds a transfer of ENERGY or PARTICLES?

  Energy
• What is a longitudinal wave?

  A wave that travels in back and forth movements
• What is a transverse wave?

  A wave that travels foward whilst moving up and down.
• What is a Crest?

  The largest disturbance a wave will create.
• What is a Trough?

  The largest disturbance in the opposite direction.
• What is Amplitude?

  The measurement of a wave at peak height
• What is Period?

  The time recorded for a wave to repeat itself
• What is Wavelength?

  The distance from one part of a wave to another at the same height.
• Explain loudness in waves:

  The bigger the vibrations means the louder the sound
• Explain Pitch in waves:

  The faster the vibrations the higher pitched the wave is
• What is the symbol for Wavespeed?

  V
• What is the symbol for Frequency?

  f
• What measurement is used for Wavelength?

  Metres
• What measurement is used for Frequency?

  Hertz
• What measurement is used for Wavespeed?

  Metre/second
• What is the formula for calculating Wavespeed?

  Wavelength x frequency
• What is the formula for calculating Wavelength?

  Wavespeed over frequency
• What is the formula for calculating Frequency?

  Waves over seconds