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Search Results for charges - All Grades

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Grade 6 Magnetism and Electricity
A plastic ruler can get a positive charge by
  1. gaining a single negative charge.
  2. losing a single negative charge.
  3. gaining a single positive charge.
  4. losing a single positive charge.
Grade 12 Physics
What is the main factor that influences the energy stored in an electric field between two charges?
  1. The distance between the charges
  2. The temperature of the charges
  3. The color of the material
  4. The gravitational force between the charges
Grade 12 Physics
What distinguishes the strong nuclear force from electromagnetic forces in terms of charge dependence?
  1. It is attracted to negative charges only.
  2. It is repulsive between like-charged particles.
  3. It acts independently of charge.
  4. It depends on the charge of interacting particles.
Grade 12 Physics
In a uniform electric field, how is the direction of the electric field vector defined?
  1. Toward positive charges
  2. Toward negative charges
  3. In the direction a negative charge would move
  4. In the direction a positive charge would move
Grade 9 Atomic Structure
Why does an atom have no net electric charge?
  1. Its subatomic particles carry no electrical charge.
  2. The positively charged protons cancel out the negatively charged neutrons.
  3. The positively charged neutrons cancel out the negatively charged electrons.
  4. The positively charged protons cancel out the negatively charged electrons.
Grade 8 Atomic Structure
Compared to the charge and mass of a proton, an electron has                                   .
  1. the same charge and a smaller mass
  2. the same charge and the same mass
  3. opposite charge and smaller mass
  4. opposite charge and the same mass
Grade 12 Physics
What is the electric field at a point in space?
  1. The density of charged particles
  2. The magnitude of the electric charge
  3. The distance between two point charges
  4. The force experienced by a unit positive charge at that point
Grade 10 Atomic Structure
Which statement correctly describes the charge of the nucleus of an atom?
  1. It is neutral.
  2. It is positively-charged.
  3. It is negative and neutral.
  4. It is negatively-charged.
Grade 9 Molecules and Compounds
By definition, an anion is                   .
  1. negatively charged
  2. neutral
  3. positively charged
  4. None of the above.
Grade 12 Physics
What is the charge of an electron?
  1. -1 elementary charge
  2. 0 elementary charge
  3. +1 elementary charge
  4. Varies depending on the atom
Grade 8 Molecules and Compounds
What does an ionic compound usually contain besides a positively charged metal ion?
  1. a negatively charged non-metal ion
  2. a positively charged non-metal ion
  3. a negatively charged metal ion
  4. a positively charged metal ion
College Magnetism and Electricity
Isolines of potential are drawn for the gravitational field of Sun-Mercury system. The pattern of the isolines is identical to the pattern of equipotential lines for a system of two electrically charged objects with which of the following properties?
  1. The charges have the same sign and the same magnitude.
  2. The charges have the same sign and different magnitudes.
  3. The charges have opposite charges and the same magnitude.
  4. The charges have the opposite signs and different magnitudes.
Grade 10 Atomic Structure
One of the deductions from Rutherford’s alpha scattering experiment is that                                       .
  1. electrons are negatively charged
  2. nuclei of atoms are positively charged
  3. electrons are negligible mass
  4. protons are positively charged
Grade 8 Physics
The polarization in the context of static electricity is                                              .
  1. the accumulation of charges on an object
  2. the separation of charges in an insulator
  3. the neutralization of charges on a conductor
  4. the process of discharging static electricity
Grade 11 Oxidation-Reduction Reactions
What represents the total oxidation state for an ionic compound?
  1. It equals the charge of the cation.
  2. It equals the charge of the anion.
  3. It is equivalent to the magnitude of the ion with the higher charge.
  4. It equals zero.
Grade 12 Physics
The direction of the electric field generated by a positive charge points__.
  1. Toward the positive charge
  2. In a circular motion around the charge
  3. Away from the positive charge
  4. None of the above
Grade 10 Atomic Structure

This question is a part of a group with common instructions. View group »

Which statement correctly describes the relationship between the charge of a proton and the charge of an electron?
  1. Protons and electrons have the same charge.
  2. Protons have a lower charge than electrons do.
  3. Protons and electrons have opposite charges.
  4. Protons have a charge of 0, electrons have a charge of -1.
Grade 4 Magnetism and Electricity
A buildup of electrical charge is called
  1. current electricity.
  2. negative charge.
  3. static electricity.
  4. positive charge.
Grade 8 Magnetism and Electricity
North poles of magnets always attract                .
  1. negative charges
  2. positive charges
  3. south poles
  4. santa claus
Grade 11 Atomic Structure
What is a cation?
  1. negative charged ions
  2. a cat and an ion
  3. positive charged ions
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