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Seitz Force Motion
Force Motion
| Question | Answer |
|---|---|
| What two groups can everything in the world be divided into? | Matter and energy |
| What two groups can energy be divided into? | Kinetic and potential |
| What is potential energy? | Stored energy. Energy of an object at rest. |
| What is kinetic energy? | The energy of an object in motion. |
| What is a force? | A push or pull that causes an object to move, change direction or speed |
| What is speed? | How fast an object is moving. |
| What is friction? | A force that slows the speed of an object. |
| What is caused by friction? | Friction causes an object to slow its speed and it produces heat. |
| What is an example of electricity in nature? | Lightning |
| What is lightning? | A discharge of static electricity into the atmosphere. |
| How do people make electricity? | With generators. |
| Name three kinds of energy electricity can be changed to. | Heat, light, and mechanical. |
| Give an example of heat energy. | A toaster. |
| Give an example of light energy. | A lamp |
| Give an example of mechanical energy. | A can opener or any machine that uses electricity for power. |
| What creates an electric current? | A continuous flow of electrons. |
| What does and insulator do? | Material that does not allow electricity to flow easily through it. |
| Name an example of an insulator. | Wood. |
| Electrical current travels in a path called________________. | A circuit |
| What does a closed circuit do? | It allows the flow of electrons. |
| What does an open circuit do? | It stops the flow of electrons. |
| A circuit with only one path to follow is a ____________________. | Series circuit. |
| A circuit with two or more paths to follow is a ___________________. | Parallel circuit |
| What is another form of energy caused by the movement of electrons? | Magnetism |
| What are the ends of a magnet called? | Poles (north and south) |
| What is a permanent magnet? | Magnet where the magnetic properties are always there. |
| What is an electromagnet? | A magnet produced by sending electricity through a piece of metal wrapped with coils of wire, which produces a magnetic field. |
| How is an electromagnet made stronger? | By increasing the number of coils of wire used. |
| Name several objects that use electromagnets. | Television, electric motors, telephones and computers. |
| What did Ben Franklin discover about lightning and metal? | He discovered the lightning is a natural form of electricity and metal conducts electricity. |
| Who discovered that electricity could be made by passing a magnet through a coil of wire (electromagnet)? | Michael Faraday. |
| Who made the light bulb? | Thomas Alva Edison. |
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Seitz
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