1. What will the electric field inside a positively charged sphere be? a) positive b) no correct answer

2. An example of a uniform electric field can be:
a) the electric field around a positive point charge
b) the electric field around a positively charged sphere
c) the electric field around a negatively charged sphere
d) the electric field between two interacting charges
e) the electric field between the plates of a capacitor

3. If the distance between the centers of charges is increased by a factor of 3 and the magnitudes of the charges are increased by a factor of 3, then the Coulomb force will:
a) increase by a factor of 27
b) decrease by a factor of 9
c) no correct answer
d) increase by a factor of 3
e) decrease by a factor of 3
f) remain unchanged
g) increase by a factor of 9
h) decrease by a factor of 27

4. The theory of short-range interaction involves:
a) interaction through intermediate links
b) interaction through empty space
c) interaction through the universal ether
d) interaction through gravitational waves

5. The following types of interactions exist in nature:
a) gravitational
b) electromagnetic
c) negative
d) nuclear
e) weak
f) quantum
g) positive
h) light-based

6. If the distance is increased by a factor of 3 and the charge magnitude is increased by a factor of 3, then the electric field strength of a point charge will:
a) increase by a factor of 3
b) decrease by a factor of 3
c) decrease by a factor of 9
d) decrease by a factor of 27
e) remain unchanged
f) increase by a factor of 9
g) increase by a factor of 27
h) no correct answer

7. Electrization of objects can occur through:
a) changing volume
b) influence
c) collision
d) throwing
e) compression
f) friction
g) lifting
h) no correct answer

8. Free charges are:
a) charges that are separated from atoms
b) charges that are inside conductors
c) charges that are freed from atoms
d) charges that can move inside a conductor under the influence of an electric field
e) charges that are on the surface of a conductor

9. Properties of the electric field include:
a) the field possesses properties that distinguish it from anything else
b) the field is material
c) it exists independently of us and our knowledge of it
d) it is a consequence of the interaction of magnets
e) the field is a form of waves
f) the field is the only form of matter in the universe known to humanity