Flashcards
SCIENCE TEST
Cards in this deck (39)
- 1What is wavelength?The distance between 2 successive similar points on a wave.
- 2What is Frequency?Frequency is the number of waves passing a fixed point each second (measured in hertz (hz)
- 3What is Amplitude?The distance from the midpoint of the wave to its high point of low point.
- 4What is the crest?High point of a wave.
- 5What is the trough?The low point of a wave.
- 6What is the period?The time taken for 1 wave length to pass a point.
- 7What wave does light travel on?Transverse Waves.
- 8What are transverse waves?Transverse waves are the waves that light travel on. A wave in which the medium vibrates at right angles to the direction of its propagation.
- 9What waves do sound travel on?Longitudinal waves.
- 10How does sound travel?Sound travels through the air by vibrating through certain mediums (solid, liquid and gas). It vibrates through different particles (the closer they are together the faster sound travels).
- 11What is Wavelength?Wavelength is between 2 consecutive points.
- 12What are the specifics of amplitude?Amplitude is half the height of a wave (the bigger the amplitude, the more energy the wave has).
- 13Why are mediums needed to suffice sound and light travel?The mechanical transfer of energy requires a medium for the wave to propagate.
- 14What way does light travel?Light always travels in a straight line.
- 15What is the angle of incidence, and the anle of reflection?The angle of incidence is the angle between the normal and the angle of reflection (vice versa for angle of reflection).
- 16What does a convex mirror do?It causes light rays to diverge. Causes light rays to be refracted towards the normal and hence converge.
- 17What do concave mirrors do?Concave mirrors cause light rays to converge onto a focal point. They also cause light rays to be refracted away from the normal and hence diverge.
- 18Light in everyday life.When light shines on an object it shines back the reflection of the object into the human eye. Light changes the way we see colour.
- 19What type of energy is in a transverse wave?Light.
- 20What type of energy is in a longitudinal wave?Vibration (sound).
- 21What is the ray of incidence or ray of reflection?The ray of incidence is the original ray to hit the mirror/lense/object, and the ray of reflection is the product ray of the incidence ray.
- 22Angles of incidence.The angle of incidence is between the incident ray and the normal
- 23Angle of reflection.The angle of reflection is between the reflected ray and the normal.
- 24What can be seen when light shines into a flat mirror?When a light shines into a flat mirror,
- 25What is an incident ray?Is the ray of light that first strikes the surface.
- 26What is a concave mirrorA curved mirror is a mirror with a curved reflecting surface.
- 27What is reflection?Reflection is the light that bounces back (the product of the incident ray).
- 28What is refraction?Being deflected in passing through the interface between one medium and another or through a medium of varying density.
- 29What is a convex mirror?A curved mirror in which the reflective surface bulges toward the light source. Convex mirrors reflect light outwards, therefore they are not used to focus light.
- 30What is a prism?A glass or other transparent object in the form of a prism, especially one that is triangular with refracting surfaces at an acute angle with each other and that separates white light into a spectrum of colours.
- 31How light acts?One important thing to know about light is that it travels and behaves as waves. Light also has the character of a particle, but we're going to just look at some basic stuff about light as a wave.
- 32How reflections occur?The law of reflection says that when a ray of light hits a surface, it bounces in a certain way, like a tennis ball thrown against a wall. The incoming angle, called the angle of incidence, is always equal to the angle leaving the surface, or the angle of reflection.
- 33What is refraction?When a light wave has to travel through different mediums in order to see something. E.G: straw in a glass of water.
- 34Loudness of sound.The loudness of sound is dependent on the pitch which is determined by the number of waves (frequency).
- 35What is the type of energy associated with sound?Vibration.
- 36What is the wavelength of a transverse wave?distance between two peaks or the distance between two troughs. ... "the number of complete cycles (complete waves) in one second".
- 37What is the amplitude of a transverse wave?Amplitude is a measure of the amount of energy in a wave. In a transverse wave, amplitude is the measure from the resting position to either the crest (high point of the wave) or to the trough (low point of the wave.)
- 38WHAT ARE THE SYMBOLS...??
- 39—
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- Flashcards on SCIENCE TEST, created by Alicia Wright on 14/08/2017.
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- Alicia Wright
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