Name: Per: Date: Ms. Yanuck. Study Guide - Unit Test Waves, Magnetism and Electricity

Transcription

1 Name: Per: Date: Ms. Yanuck Study Guide - Unit Test Waves, Magnetism and Electricity Write the correct answer on the line: Word Bank: long short waves longitudinal transverse compressions or rarefactions middle crests or troughs 1. In transverse waves, the wavelength is the distance between two 2. In longitudinal waves, the wavelength is the distance between two 3. Frequency is the number of that pass a point in one second 4. wavelengths have low frequencies 5. wavelengths have high frequencies 6. Amplitude (wave height) is the distance from the of a transverse wave to the crest or trough 7. Sound moves in waves 8. Light moves in waves 9. On the diagram below, draw arrows and label the crest, trough and amplitude.

2 Circle the correct answer: 10. Sound waves need / do not need a medium to transfer their energy 11. Light waves need / do not need a medium to transfer their energy 12. Which form of energy are visible light and infrared radio waves? (1) nuclear (2) electromagnetic (3) heat (4) chemical 13. Sound will not travel in a (1) solid (2) vacuum (space) (3) liquid (4) gas 14. Use the diagram to complete the chart. In the chart below, list these four forms of electromagnetic energy in order from the longest wavelength to the shortest wavelength. gamma rays, visible light, radio waves, infrared light

3 15. The diagram below shows a light ray. In this diagram, the light ray is being (1) transmitted (2) absorbed (3) reflected (4) refracted 16. The diagram below shows a boy looking at a fish at position B below the surface of the water. The boy sees the fish at position A. The apparent position of the fish (A) is different from the actual position of the fish (B). What has happened to the light passing through the water to cause this difference? (1) reflection (2) absorption (3) compression (4) refraction 17. Write the colors of the Visible Light spectrum in order of the longest waves to the shortest. (3) 18. Circle the correct answer We see the someone s shirt as green because (a) All the colors are absorbed and green is reflected (b) All the colors are reflected and green is absorbed

4 19. These magnets will (1) attract (2) repel N S N S 20. What happens when you cut a magnet in half? (2pts.) 21. Where is the magnetic field the strongest? (2 pts.) 22. The needle on a compass will always point to Magnetic (1) East (2) West (3) North (4) South 23. Static electricity is (2 pts.) 24. Unlike charges and like charges (2 pts.) 25. The part of the atom that can jump off its shell and move to another atom is the (1) proton (2) electron (3) neutron 26. Is the symbol for (1) a circuit (2) a switch (3) a resistor (4) a power source 27. A circuit must have 3 parts. They are: a resistor, conductors (wires), and (1) a switch (2) an insulator (3) a power source (4) protons

5 28. Is the item a conductor or an insulator? Check the appropriate box Item Conductor Insulator paper metal water rubber wood 29. This circuit is - (a) an open series circuit (c) an open parallel circuit (b) a closed series circuit (d) a closed parallel circuit 30. This circuit is (a) a complete series circuit (b) a complete parallel circuit (c) an incomplete series circuit (d) an incomplete parallel circuit 31. What will happen if the bulb with the arrow goes out? (a) this is a series circuit and the other bulb will go out, too (b) this is a parallel circuit and the other bulb will stay on 32. Draw an open series circuit with a switch and two resistors (6 pts.)