http://www.physics.unl.edu/~fulcrum/ Department of Physics & Astronomy University of Nebraska-Lincoln Lincoln NE 68588-0111 [email protected] 402-472-8685

Electricity and Magnetism Jeopardy Martha Gregg

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The Nature of Magnetism

This is the name of the mineral that magnetic rock contains.

This is the region of magnetic force around a magnet.

This is a cluster of billions of atoms whose magnetic fields are lined up the same way.

This is a magnet made of material that keeps its magnetism.

This is a material that show strong magnetic effects.

This is the smallest particle of an element that has the properties of the element.

Magnetic Earth

This is a device with a magnetized needle that can spin freely.

The poles of a magnetized needle on a compass align themselves with this.

This is located near, but not exactly at the geographic north pole.

This is a stream of highly charged particles flowing at high speeds from the sun.

This is a glowing region in the atmosphere caused by charged particles from the sun.

This changes direction about every 100,000 years.

Electric Charge and Static Electricity

When a negatively charged object and a positively charged object are brought close together they do this.

This is the field around an electrically charged object which exerts a force on other charged objects.

This is an object in which each positive charge is balanced by a negative charge.

This is movement of electrons from one charged object to another charged object by direct contact.

This is the law which states that no charges are created or destroyed.

This is the loss of static electricity as electric charges move off an object.

Electrical Safety

This is a connection which allows electricity to follow an unintended path.

This is the coating on copper wire which prevents people from getting a shock as current runs through the wire.

The third prong of a plug connects the metal shell of an appliance to this.

This is a metal rod mounted on the roof of a building which protects the building.

This device is added to a circuit to prevent overheating.

These control the beating of your heart.

Electricity, Magnetism, and Motion

This is the ability to move an object some distance.

When a current-carrying wire is placed into this, electrical energy is converted to mechanical energy.

This is a device which uses an electromagnet to measure small amounts of current.

This is a device which converts electrical energy into mechanical energy and then uses the mechanical energy to turn an axle.

This device reverses the flow of current through an electric motor.

This is the name for the arrangement of wires wrapped around an iron core in an electric motor.

Generating Electric Current

This is the process of generating an electrical current by moving a conductor through a magnetic field.

This is a current which consists of charges that move back and forth in a circuit.

This is a device which converts mechanical energy into electrical energy.

This is a circular device made up of many blades that are turned by wind, tide, steam, or water.

This is a type of energy resource which results in no waste.

This is an energy resource that exists in a fixed amount.

1-1 The nature of Magnetism 100 200 400 600 800 1000

What is magnetite? What is a magnetic field? What is a magnetic domain? What is a permanent magnet? What is a ferromagnetic material? What is an atom?

1-2 Magnetic Earth 100 200 400 600 800 1000

What is a compass? What is Earth’s magnetic field? What is the magnetic south pole? What is the solar wind? What is an aurora? What is Earth’s magnetic field?

2-1 Electric Charge and Static Electricity 100 200 400 600 800 1000

What is attract? What is an electric field? What is a neutral object? What is conduction? What is the law of Conservation of Charge? What is static discharge?

2-4 Electrical Safety 100 200 400 600 800 1000

What is a short circuit? What is insulation? What is the ground wire? What is a lightening rod? What is a fuse (or circuit breaker)? What are tiny electrical charges?

3-1 Electricity, Magnetism, and Motion 100 200 400 600 800 1000

What is energy? What is a magnetic field? What is a galvanometer? What is an electric motor? What is a commutator? What is the armature?

3-2 Generating Current 100 200 400 600 800 1000

What is electromagnetic induction? What is alternating current? What is a generator? What is a turbine? What is hydroelectricity (or sun or tides)? What is a non-renewable resource?