Welcome to the Quiz!
This quiz contains 5 questions from a mix of 1 subtopics.
What is the purpose of rubbing the perspex rod against the cloth?
to charge it by transferring electrons between the materials
to cool it down
to heat it up
to make it heavier
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What will the student observe when a charged rod is brought close to the top plate of an uncharged gold leaf electroscope?
the gold leaf will be deflected
the gold leaf will fall off
the gold leaf will discharge
a spark
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Static electricity is caused by the imbalance of charges. Which sub-atomic particle is transferred when a perspex rod is rubbed with a cloth?
electron
neutron
alpha particle
proton
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A student charges a perspex rod and places it near a gold leaf electroscope. The gold leaf is deflected by 20o. The rod is then rubbed for a further minute. Which of the following is the most likely angle of deflection when the rod is placed near the gold leaf electroscope again?
25o
15o
0o
20o
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When a balloon is rubbed against a jumper it sticks to the wall. Explain why.
electrons are transferred to the balloon when rubbed against the jumper. These are attracted to the protons in the wall.
electrons are transferred to the balloon when rubbed against the jumper. These are repelled by atoms in the wall.
protons are transferred to the balloon when rubbed against the jumper. These are attracted to atoms in the wall.
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