Electric Charges & Circuits

Which of the following an insulator?

• copper
• wood
• silver
• salt water

Elements that are shiny and good conductors of electricity are _____.

• colloids
• metalloids
• metals
• nonmetals

When objects have equal numbers of positive and negative charges, they are

• positively charged
• negatively charged
• electrically neutral
• unbalanced

If an element has 6 protons, 7 neutrons, and 6 electrons, what type of charge does the element have?

• positive
• negative
• neutral
• imaginary

How do objects become electrically charged?

• Protons move from one object to another
• Neutrons move from one object to another
• Electrons move from one object to another
• Neutrons and electrons trade places

The loss of an unbalanced electric charge 

• electric force
• electric discharge
• electric field
• bonding charge

The push or pull between charged objects

• electric force
• electric discharge
• electric field
• bonding charge

The invisible region around any charged object

• electric force
• electric discharge
• electric field
• bonding charge

A negatively charged particle has

• more protons than electrons
• more electrons than protons
• neutrons and protons but no electrons
• an equal number of protons and electrons

When two objects touch, which object becomes negatively charged?

• the object that has the greater mass
• the object that loses electrons more easlily
• the object that has the smaller surface area
• the object that holds electrons more tightly