Circuit electrical

In a stable atom the amount of electrons is equal to the amount of

• neutrons

• protons

• atomic mass

• neutrons + protons

What is the charge of the electron

• positive
• no charge
• negative
• neutral

Which particle has a positive charge?

• electron
• orbital
• proton
• neutron

What types of charges attract?

• Positive and Positive
• Positive and Neutral
• Negative and Neutral
• Positive and Negative

If a substance has an excess number of electrons on its surface, what type of charge does it have?

• A negative charge
• A positive charge
• A neutral charge
• A nuclear charge

A balloon has a negative charge. A glass rod has a positive charge. What will happen when the rod is brought near the balloon?

• the balloon will be attracted to the rod

• the balloon will remain in place

• the balloon will be repelled by the rod

• the balloon will spin in circles

If an object has a net charge of +2e this means it has

• lost 2 electrons
• gained 2 electrons
• lost 2 protons
• gained 2 protons

Which of these is the electron?

• A
• B
• C

What charge does a proton have?

• negative (-)
• positive (+)
• neutral or no charge (0)

In an electric circuit, a battery symbol looks like

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• 
• 
•