What carries the charge in a charged object?

• Electrons

• Protons

• Neutrons

• Photons

What is used as a conductor in most examples in this chapter?

• Metal wire

• Plastic rod

• Glass tube

• Rubber strip

Which law is used to solve simple circuit problems?

• Ohm's Law

• Newton's Law

• Boyle's Law

• Kepler's Law

What is the effect of a burn-out in a circuit?

• Open circuit

• Closed circuit

• Short circuit

• Parallel circuit

What is the unit of current related to?

• Charge and time

• Voltage and resistance

• Power and energy

• Mass and velocity

What happens to electrons when a negatively charged object touches the wire?

• They move from the object to the ground.

• They stay in the object.

• They move from the ground to the object.

• They disappear.

Why is the earth considered the "best ground available"?

• It is the largest object around.

• It is the smallest object around.

• It has no charge.

• It is made of metal.

Which way do electrons move in a wire?

• From positive to negative.

• From negative to positive.

• In a circular motion.

• They do not move.

Which way does conventional current flow in a conductor?

• From negative to positive.

• From positive to negative.

• In a circular motion.

• It does not flow.

How many amperes of current are caused by 2 C of charge flowing in 0.1 second?

• 20 A

• 10 A

• 5 A

• 2 A