Magnets and Electricity

Electromagnetics are used to pick up big objects like containers and cars

• TRUE

• FALSE

What makes a magnet stronger?

• Attraction

• Repel

• solid

• liquid

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David and Sophia are experimenting with magnets. They want to know what a magnetic field is. Can you help them?

• A magnetic field is a region in space where gravity can be detected.

• A magnetic field is a region in space where sound waves can be detected.

• A magnetic field is a region in space where electric charge can be detected.

• A magnetic field is a region in space where a magnetic force can be detected.

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Ava and Mason are discussing magnets. Ava says that magnets have a north pole and a south pole. Is Ava's statement true or false?

• True

• Magnets have only a north pole

• Magnets have no poles

• False

Lily and Maya each have a magnet. They both try to bring the same poles of their magnets together. What happens?

• They repel each other.

• They have no effect on each other.

• They stick together.

• They attract each other.

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Zoe, Avery, and Grace are working on a science project. They need to create a magnet for their project. They decide to create an electromagnet. Can you help them understand what an electromagnet is?

• An electromagnet is a type of magnet that is created by heating a metal.

• An electromagnet is a type of magnet that is powered by solar energy.

• An electromagnet is a type of magnet that is only found in outer space.

• An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.

Scarlett is working on a science project to build an electromagnet. What can she do to make her electromagnet stronger?

• Increase the number of turns in the coil, increase the current flowing through the coil, or use a stronger magnetic material as the core.

• Decrease the number of turns in the coil

• Decrease the current flowing through the coil

• Use a weaker magnetic material as the core

During a science experiment, Mason and Anika rubbed a balloon on their hair. What type of electricity did they observe?

• A type of electricity that is always in motion.

• A type of electricity that is generated by magnets.

• A buildup of electric charge on the surface of an object.

• A type of electricity that is only found in lightning.

What causes static electricity?

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Aria, Grace, and Evelyn are conducting an experiment in their science class. They observe that a balloon rubbed against their hair causes small pieces of paper to stick to it. Is this an example of static electricity causing objects to stick together?

• True

• Static electricity only affects metal objects

• Static electricity has no effect on objects

• False

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