Across
- What is the amount of energy gained by a proton accelerated through a potential difference of 50 V ? ______ eV
- If it takes 12 J of energy to move 2.0 C of charge through a lamp filament, the potential difference across the filament is ________ volts.
- Why does a neutral hard rubber rod become negatively charged when rubbed with wool ? Because _________ loses electrons.
- An electron is between two oppositely charges parallel metal plates. As the electron moves from the negative plate to the positive plate, the electron's potential energy
- If 6.0 J of work is done to move 2.0 C of charge between two points, what is the potential difference between these two points ? ________ volts
- A neutral object can become positively charged by _________ electrons.
- If the distance between two point sources of equal charge is halved, the electrical force between the sources will be
- As the distance between two point charges is tripled, the electostatic force between the charges will become one _____________as great.
- After two neutral solids, A and B, were rubbed together, solid A acquired a net negative charge. Solid B, therefore, experienced a net loss of ____________.
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Down
- How many electrons are contained in a charge of 8.0 x 10-19 C ?
- If the distance between two protons is _______,then the force they exert on each other, compared to the original force, will be 1/9 as great.
- If the charge on one of two positively charged spheres is doubled, the electrostatic force of repulsion between the spheres will be
- The Millikan oil drop experiment showed the existence of the ___________ charge.
- When a positively charged body touches a neutral body, the neutral body will ___________ electrons.
- A metal sphere with a charge of +11 elementary charges touches an identical sphere with a charge of +15 elementary charges. After the spheres touch, the charge on the first sphere is positive ______________.
- The electronvolt is a unit of _________.
- After a neutral object loses 2 electrons, it will have a net charge of __________ elementary charges
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