Electricity Assessment Prep
| # | Answer |
|---|---|
| 1 | Electricity is the movement of electric charges. |
| 2 | An electron. |
| 3 | A proton. |
| 4 | Ampere (A). |
| 5 | Electrical energy. |
| 6 | A complete path for electric current to flow. |
| 7 | A material that allows electric current to flow easily. |
| 8 | A material that does not let electric current flow easily. |
| 9 | Copper. |
| 10 | Rubber. |
| 11 | V. |
| 12 | I. |
| 13 | R. |
| 14 | The electric potential difference that pushes charges through a circuit. |
| 15 | The opposition to the flow of electric current. |
| 16 | Ohm (Ω). |
| 17 | Volt (V). |
| 18 | Watt (W). |
| 19 | The current stops flowing. |
| 20 | A series circuit. |
| 21 | A parallel circuit. |
| 22 | The whole circuit stops working. |
| 23 | The other branches can still work. |
| 24 | Metal. |
| 25 | Because copper is a good conductor of electricity. |
| 26 | A buildup of electric charge on the surface of an object. |
| 27 | A sudden discharge of built-up electric charge in the atmosphere. |
| 28 | Static electricity. |
| 29 | Power plants through the electric grid. |
| 30 | To open or close the circuit and control the flow of current. |
| 31 | The circuit opens and current stops flowing. |
| 32 | Current flows through the circuit. |
| 33 | Current decreases. |
| 34 | Current increases. |
| 35 | Ohm’s law: V = I × R. |
| 36 | 2 A. |
| 37 | 4 Ω. |
| 38 | 12 V. |
| 39 | The rate at which electrical energy is used or transferred. |
| 40 | P = V × I. |
| 41 | 12 W. |
| 42 | To protect people from electric shock and prevent short circuits. |
| 43 | An unintended path with very low resistance for current to flow. |
| 44 | It can cause too much current, overheating, or fire. |
| 45 | Never touch electrical devices with wet hands. |
| 46 | It powers instruments and tools used to collect and analyze data. |
| 47 | A seismograph. |
| 48 | A weather station sensor. |
| 49 | It powers computers, sensors, and communication systems used to predict weather. |
| 50 | Electricity powers lights and appliances in daily life, and it also powers scientific tools such as sensors, computers, and monitoring equipment used in Earth science. |