Download p3 quick fire questions - Durrington High School

P3 QUICK FIRE QUESTIONS
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What are X-rays?
How does an X-ray work?
What is the problem with X-rays
Why does the operator stand behind a lead screen?
What is a CT scan?
What is the advantage of using CT scans rather than a traditional X-ray?
What is ultrasound?
What is an ultrasound?
What are the uses for ultrasound in medicine?
How does an ultrasound work?
What is the advantage of an ultrasound?
What is the disadvantage of an ultrasound?
What happens when ultrasound hits a boundary?
What do you have to remember to do to the time for a reflected wave to return if you are calculated the distance
to that boundary?
What is distance measured in?
What is frequency measured in?
What is speed/velocity measured in?
What is time measured in?
What does an oscilloscope show us?
What is refraction?
What is refractive index?
What is critical angle?
What happens to light when it leaves a glass block at the critical angle?
How can we use the angle of incidence and the angle of refraction to calculate the critical angle?
Which direction does light bend if it travels from a less dense medium to a more dense medium?
Which direction does light bend if it travels from a more dense medium to a less dense medium?
What is total internal reflection?
What angle must the light enter for it be totally internally reflected?
How is total internal reflection used in medicine?
What are the names of the 2 types of lenses?
What happens to the light when is travels through a converging lens?
What is the symbol for a converging lens?
What happens to the light when is travels through a diverging lens?
What is the symbol for a diverging lens?
What is the principle focus?
What is the focal length?
What is a real image?
What is a virtual image?
What is magnification?
How would you calculate magnification?
Sketch a diagram to show how real image is formed by a converging lens
Sketch a diagram to show how virtual image is formed by a converging lens
Sketch a diagram to show how virtual image is formed by a diverging lens
What does magnified mean?
What does diminished mean?
What does upright mean?
What does inverted mean?
What does the cornea do?
What does the pupil do?
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What does the iris do?
What does the lens do?
What do the ciliary muscles do?
What do the suspensory ligaments do?
What does the retina do?
What does the optic nerve do?
What does lens power mean?
What are the units for lens power?
What does a negative lens power mean?
What does a positive lens power mean?
What does short sight mean?
What type of lens is used to correct short sight?
What does long sight mean?
What type of lens is used to correct long sight?
Give 2 similarities between the eye and the camera
Give 2 differences between the eye and the camera
What is a CCD (charged coupled device)?
What effect does refractive index have on the thickness of a lense? (HT)
What is a moment?
What is the unit for moment?
What is the unit for force?
What does load, effort & pivot mean in a lever?
What effect does increasing the size the of the force have on the moment?
What effect does increasing the distance from the pivot have on the moment?
What does perpendicular mean?
What is the principle of moments?
How can we use the principle of moments to measure the weight of an object?
What is the centre of mass?
How would you find the centre of mass for a regular shape?
How would you find the centre of mass for an irregular shape?
How can you increase the stability of an object?
What will make an object topple over when it is tilted?
When an object topples what can we say about the resultant moment?
Why are liquids used in hydraulics?
What is the unit for pressure?
What is the unit for area?
What does the term ‘force multiplier’ mean?
How does a hydraulic brake system work?
How does pressure act in a liquid?
What is acceleration?
How can an object travelling in a circle at a constant speed be accelerating?
What is centripetal force?
What direction does centripetal force act?
What is the force that acts as the centripetal force on the electron travelling around the nucleus?
What is the force that acts as the centripetal force on a car travelling around a roundabout?
What is the force that acts as the centripetal force on a planet orbiting around a star?
What is the force that acts as the centripetal force on an object being swung on a rope or string?
How does increasing the mass of the object affect the centripetal force?
How does increasing the speed of the object affect the centripetal force?
How does increasing the radius of the object affect the centripetal force?
What does oscillation mean?
What is a pendulum?
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What is the amplitude of oscillation?
What is the time period of a pendulum?
What is the frequency of a pendulum?
What is produced around a wire when a current flows?
What is an electromagnet?
Name 3 used for electromagnets
Describe what happens when the switch close for an electromagnet to work?
Name 3 ways of making an electromagnet stronger?
What is the motor effect?
How does a simple DC motor work?
In Fleming’s left hand motor rule, what does the thumb represent?
In Fleming’s left hand motor rule, what does the first finger represent?
In Fleming’s left hand motor rule, what does the second finger represent?
Name 3 ways of making a motor spin faster?
Why are motors useful?
How does a loudspeaker work?
What does induced mean?
What is electromagnetic induction?
Name 3 ways of inducing more current?
What is a transformer?
Which coil has more turns in a step-up transformer – primary or secondary?
Which coil has more turns in a step-down transformer – primary or secondary?
What is the core of a transformer made of and why?
What are the coils of wire made of an why?
What is a switch mode transformer?
What frequency does a switch mode transformer operate at?
What are 2 advantages of using a switch mode transformer?
What is the unit for potential difference?
What is the unit for current?
What is the unit for power?