Creado por ani.baby.sone
hace más de 9 años
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P4
What does an atom consist of?
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What is in a stable neutral atom?
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What are all electrostatic effects due to?
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What does the law of electric charges state?
What happens when a polythene rod is rubbed with a duster?
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What happens when an acetate rod is rubbed with a duster?
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What do anti-static sprays, liquids and cloths made from conducting materials do?
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In general what does an object have?
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What does a dust precipitator do?
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What are ions?
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What is placed in chimney's and how does it get rid of the harmful particles?
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What could cause an explosion?
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Describe how static electricity is used in spray painting.
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What happens if a person touches something with high voltage?
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What happens if the object to be painted is not charged and why is this bad?
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Can small amounts of charge flowing through the body be fatal?
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If the paint is negatively charged what should the object be?
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What are some examples of static electricity that isn't dangerous?
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How can electric shocks be avoided?
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What is defibrillation? Describe the process.
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What things or factors can change resistance?
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Describe voltage and how it can affect current.
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Describe the three types of wires.
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Describe fuses and why they're positive?
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What happens if the case of an appliance becomes live?
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Can the power of an appliance be restored?
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What is power rating?
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What can the formula power = voltage x current be used for?
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Describe ultrasounds.
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What is a compression?
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What is a rarefaction?
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Describe the features of longitudinal sound waves.
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Describe the difference between longitudinal and transverse wave vibrations.
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Describe how ultrasound breaks up kidney stones.
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Describe how an ultrasound is used in a body scan fully.
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Why can ultrasound be used for body scans?
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Why is ultrasound preferred to x-rays?
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Describe radioactive substances
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What does nuclear radiation cause and how?
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Describe radioisotopes.
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What is the half life?
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How can the nucleus of an atom be represented?
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How does an element change?
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Describe alpha fully.
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Describe beta particles fully.
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What is background radiation due to?
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Describe how a tracer is used to locate a leak in an underground pipe.
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Describe alpha particles in smoke detectors.
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Describe rock types in terms of radioactive materials.
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How do you know a rock is 4500 million years old?
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What is carbon dating?
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What is background radiation due to?
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List what we use radiation for.
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Describe ionisation fully.
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What is radiotherapy?
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How do you make materials radioactive?
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What happens when X-ray passes through the body?
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Difference between x-rays and gamma?
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Describe x-rays and how they're made and how gamma radiation is different.
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What happens when the nucleus of an atom of a radioactive substance decays?
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Describe how a radioactive tracer is used to investigate inside a patients body.
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What is a radioisotope used for in treatment and describe how.