Inv4.Exp1 Text A

What is the fundamental relationship between like charges in electricity?

• They attract each other
• They have no effect on each other
• They repel each other
• They create neutral charges

In the Bohr model of an atom, what keeps the electrons orbiting the nucleus?

• The strong nuclear force
• Electric force
• Gravitational force
• Magnetic force

What is the SI unit for electric charge?

• Newton
• Volt
• Ampere
• Coulomb

According to Coulomb's law, if you double the distance between two charged particles, the force becomes:

• Four times stronger
• Half as strong
• Twice as strong
• One-fourth as strong

What happens when you charge a macroscopic object?

• You add or remove neutrons
• You add or remove protons
• You add or remove electrons
• You change its atomic number

In the notation F12, what does this represent?

• The force of particle 2 on particle 1
• The total force between particles
• The force of particle 1 on particle 2
• The net force in the system

What keeps the nucleus from blowing apart in an atom?

• Electric force
• The strong nuclear force
• Gravitational force
• Weak nuclear force

What is triboelectric charging?

• Charging through magnetic fields
• Charging through heat transfer
• Charging through direct contact and separation
• Charging through radiation

When using a triboelectric series, materials higher in the series tend to:

• Become neutrally charged
• Gain electrons
• Give up electrons
• Maintain their charge

The magnitude of electric force between charged objects is proportional to:

• The distance between charges
• The product of the charges
• The square of the distance
• The sum of the charges