Electric Charge

Mr. Anderson explains electric charge, starting with static electricity on playgrounds and the conservation of charge. He discusses historical experiments with amber and pith balls, leading to Benjamin Franklin's work on charge types. The video covers the concept of current and simple circuits, emphasizing the conservation of charge and practical applications like a lemon clock.

What happens to the net charge of a system when charges are transferred within it?

• The net charge increases.

• The net charge decreases.

• The net charge remains the same.

• The net charge becomes zero.

What did early scientists discover when rubbing amber on fur?

• It emitted light.

• It produced heat.

• It attracted light objects.

• It created a magnetic field.

What did Benjamin Franklin's kite experiment demonstrate about lightning?

• Lightning is a chemical reaction.

• Lightning is a form of magnetic force.

• Lightning is unrelated to electric charge.

• Lightning is a form of static charge.

In a simple circuit, what is necessary to make a lamp glow?

• A high voltage battery.

• A magnetic field around the lamp.

• A continuous flow of current in one direction.

• A switch to turn on the circuit.

What role do copper and zinc play in a lemon clock circuit?

• They act as insulators.

• They generate light.

• They store electric charge.

• They serve as the cathode and anode.