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Science
Unit 3
| Question | Answer |
|---|---|
| waves | the up and down movement of surface water that can also be a disturbance that carries energy through space |
| The size of the wave is related to the amount of ___________ transferred. | energy |
| Waves carry energy through ________________. | movement |
| If a large rock is dropped in a pond, there would be a __________ wave with more energy. | large |
| When ocean waves hit the beach, __________ is released. | energy |
| Waves move up-and-down or side-to-side, but the energy moves ____________. | forward |
| Light waves | the movement of light as a wave |
| Sound wave | sound that is made up of vibrations that we can hear |
| Sound waves can only travel through _________. | matter |
| crest | the top part of the wave |
| wave length | the distance between a point on one wave and the identical point on the next wave |
| trough | the bottom part of the wave |
| amplitude | a measure of the energy in a wave |
| The smaller amplitude a wave has, the _____________ energy it has. | less |
| All waves have _____________ and _____________. | amplitude, wavelength |
| In a sound wave, the amplitude is also called ____________. | volume |
| Sound waves with more energy and volume have a _____________ amplitude. | higher |
| Sound waves with less energy and volume have a _____________ amplitude. | lower |
| Trumpet: high or low amplitude? | high amplitude |
| Cat purring: high or low amplitude? | low amplitude |
| Bird singing: high or low amplitude? | low amplitude |
| Fireworks: high or low amplitude? | high amplitude |
| harmony | sound waves that interact or combine in a pleasing way |
| When two waves come together, they can combine or form a ___________ wave or ____________ each other out. | larger, cancel |
| When two opposite waves combine, the waves could ____________ each other out. | cancel |
| Light rays move in one direction until they hit an ___________. | object |
| Transparent | means all light passes through an object |
| 2 Examples of transparency | water, windows |
| Translucent | means some light passes through an object |
| 3 examples of translucent objects | stained glass windows, blinds, sunglasses |
| Opaque | means no light can pass through an object |
| 2 examples of opaque objects | metal, television |
| Reflection | the bouncing of light waves when they encounter an obstacle |
| If a surface is not ____________, it impacts the surface's ability to reflect light. | smooth |
| 3 objects that reflect light | metal, mirror, gold ring |
| We need _____________ to see. | light |
| Light can not go around objects, it can only travel in ____________ lines. | straight |
| Light is ___________ off the object and travels in a ______________ line to the eyes. | reflected, straight |
| Light is made up of many different colors all ___________ together. | blended |
| Each color of the _____________ has a different wavelength. | rainbow |
| White light | all the wavelengths reflect |
| Black light | all the wavelengths absorbed |
| Light moves __________ than any other wave or object, but its speed can ___________. | faster, change |
| Refraction | the bending of light waves as they pass from one material to another |
| The ____________ is the refraction caused when the waves change direction and speed. | shift |
| Objects that refract light to produce images of objects | binoculars, magnifying glasses, microscopes |
| There are _______ main types of lenses used in glasses that allow light to pass through. | two |
| convex lenses | curved outward |
| concave lenses | curved inward |
| 1. Light leaves the _________. 2. Light __________ off of an object. 3. Light enters the lens in your ________. 4. Light is changed into a ___________. 5. Signal enters the _____________. 6. You _______ the object. | 1. sun 2. reflects 3. eye 4. signal 5. brain 6. see |
Created by:
akontostergios
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