WorksheetsP09 - Electrostatics mixed questions
Total questions: 7
Worksheet time: 7mins
Name
Class
Date
1.
Charles Augustin de Coulomb named a law after him after he helped us better understand electrical charges. What instrument did he use for his research?
a)
the oil drop method
b)
a torsion balance
c)
the telescope
d)
a kite and a key
2.
J.J. Thomson used a cathode ray to show atoms are charged particles. What charge would the ray from the cathode have if the ray moved to the positive field? Why?
a)
negative, because opposites attract
b)
positive, because likes attract
c)
negative, because likes repel
d)
positive, because likes repel
3.
With the "Falling-drop Method", which law did Millikan use to measure the charge of an electron?
a)
Coulomb's Law
b)
Gravity Law
c)
The Law of Conservation of Energy
d)
Inverse
4.
A Van de Graaff shows quantitative information.
a)
True
b)
False
5.
Two like charges are brought near each other. Which energy will the charges have before they begin to repel?
a)
electric potential energy
b)
elastic potential energy
c)
gravitational potential energy
d)
potential energy
6.
Two opposite charges are near each other. They will have a:
a)
high electric potential energy
b)
low electric potential energy
c)
high elastic potential energy
d)
low elastic potential energy
7.
If two like charges are brought near each other, what type of energy will they have as they begin to repel?
a)
electric potential energy
b)
kinetic energy
c)
potential energy
d)
elastic potential energy
100 %
