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Electricity
Test Description: Review Questions
Instructions: Answer all questions to get your test result.
1) An atom is made of three basic subatomic particles: Protons, neutrons, and electrons. Which of these carry a charge?
A
Protons and neutrons
B
Neutrons and electrons
C
Protons and electrons
D
Protons, neutrons, and electrons
2) If you could see the electric field coming off a protons you would notice that electric field lines are
A
coming into the proton
B
going out from the proton
C
coming in one pole of the proton and going out the other
D
moving in circles around the proton like waves
3) A Van de Graaff generator can be used to create a large amount of
A
mixed positive and negative charges on its surface
B
static charge
C
current
D
electrical resistance
4) Lightning is created when charges flow rapidly from
A
cloud to ground
B
ground to cloud
C
all of these
D
cloud to cloud
5) A Van de Graaff generator produces large ____________________ but small _____________________.
A
voltage, current
B
charge, voltage
C
voltage, charge
D
current, voltage
6) An electron can often be removed from an atom because it is
A
pulled by nearby electrons off an atom if they get too close to the electron
B
affected by friction since the attraction to the nucleus is sometimes not very strong
C
not attracted to the nucleus of the atom it surrounds
D
negative
7) Non moving electrical charges are often called
A
static electricity
B
voltage
C
current
D
electrical field lines
8) How would you best define moving charges?
A
electrical field
B
electrical force
C
current
D
voltage
9) Lightning is very dangerous because it-
A
can strike anywhere at anytime.
B
reaches such high voltages before it strikes
C
can send a large number of charges through a person's body
D
comes with loud thunder, high levels of light, and ionizes the air around it
10) Which scientist is not known for his work with electricity?
A
Van de Graaff
B
ALL OF THESE PEOPLE WORKED WITH ELECTRICITY
C
Franklin
D
Edison
*select an answer for all questions
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