Missed Questions

Marco is creating an electric circuit to supply light to the bulb. What TWO options could Marco use to complete the simple electric circuit and light the bulb?

• The simple circuit needs a battery make the circuit work and light the bulb.

• The simple circuit needs a switch because a circuit needs to have a switch to be able to be turned on and off.

• The simple circuit needs a rubber band to connect the wires because the wires are coated with rubber or plastic.

• The simple circuit needs a plug and electrical outlet to supply power to the completed circuit.

Mary is assembling an electric circuit, but the light bulb is not turning on. What does Mary need to add to her circuit to make the bulb light up?

• She needs to add a switch to the electric circuit so she can control the light.

• She needs to add a power source to the electric circuit so the bulb will light up.

• She needs to add more wiring to the electric circuit so it will work.

• She needs to add another light bulb to the electric circuit so it will complete the circuit and the bulb will light up.

Which of the following best describes current electricity?

• Current electricity is produced naturally without human intervention.

• Current electricity is generated by rubbing objects together.

• Current electricity is caused by the accumulation of static charges.

• Current electricity is the movement of electrons through a conductor.

Jill is learning about static electricity by rubbing a balloon with a wool cloth, and the confetti on the ground was attracted to the balloon. Jill wants to compare the information she observed about static electricity with a diagram on current electricity. Which statement about the differences between current electricity and static electricity supports the confetti sticking to the balloon?

• The electrons moving and being stationary due to static electricity supports the pieces of confetti sticking to the balloon.

• Static electricity has a constant flow.

• The flow of charges is constant, but the flow of static electricity is not constant.

• The flow of electrons is constant with static electricity, but the electrons only flow when the objects are rubbed together.

After taking a sweater off, Maria noticed it clung to her shirt and made a popping sound when she separated them. She realized static electricity was causing the sweater to stick and the popping sound.

• Static electricity is created when materials rub together, like clothes in a dryer or sweater and shirt, while current electricity needs a circuit to flow.

• Static electricity in clothes is the same as current electricity because both come from the power used in appliances.

• Current electricity can be controlled in circuits, but static electricity cannot be controlled in everyday situations.

• The charges from static electricity always flow, but charges from current electricity do not flow continuously.

If you replace the paper clip with a plastic spoon, what happens?

• The bulb doesn't light
• The bulb is dimmer
• The wires get hot
• There is no change

Which of the following is the key difference between an electromagnet and a magnet?

• The strength of the magnet

• The number of poles

• Whether magnetism depends on an electric current

• How long magnetism lasts