Fichas
Waves and Heat
Fichas del conjunto (23)
- 1What are waves?Periodic oscillations that transfer energy from one point to another
- 2Longitudinal Wave
- 3Transverse wave (direction of oscillation is perpendicular to waves direction of travel)
- 4Amplitudedisplacement of crest from central (medium) position
- 5WavelengthDistance between two equal points along the wave
- 6FrequencyNumber of waves past a point per second
- 7PeriodHow long it takes one wavelength to pass a point
- 8VelocitySpeed at which the wave form travels
- 9What is the wave form?The shape of the wave
- 10What does C stand for?Speed of Light
- 11What are mechanical waves?waves that transfer energy through a physical medium, for example, seismic or sound waves
- 12What is the natural frequency?the rate at which an object vibrates when it is disturbed by an outside force
- 13When does a forced vibration occur?when a wave forces an object to vibrate at the same frequency as the wave
- 14What is resonance?the large-amplitude vibration that occurs in the object when the forced vibration is the same as its natural frequency
- 15What are electromagnetic waves?waves that can be modelled as a transverse wave that can travel through a vacuum
- 16What is refraction?the change in direction of propagation of a wave as its speed changes
- 17What is Diffraction?the bending/spreading of waves as they pass through an aperture or or past a sharp edge
- 18What is thermal energy made up of?the combined potential energy and the kinetic energy that is due to the vibration of the particles within the object
- 19What three ways do particles move?rotate
translate (move back and forward)
vibrate (atoms move back and fourth within the molecule) - 20What is 'temperature'?the average movement of the particles in a material., as particles within objects with higher temperatures have higher average kinetic energy.
- 21Temperature is the measure of movement of particles. Does it have a minimum and maximum value?Yes. atomic particles cannot go slower than stopped. minimum temp is when all particles are motionless (absolute zero)which cannot be reached. atomic particles cannot go faster than the speed of light.
- 22What is thermal equillibrium?When two objects of different temperatures are placed in contact, thermal energy transfers from hotter object to cooler one, until eventually both objects are at the same temperature.
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- South Australian Certificate of Education Physics Fichas sobre Waves and Heat, creado por Leila Norman el 02/06/2022.
- Creado por
- Leila Norman
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