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GJHS Phy Sci S1 P3
GJHS Phy Sci S1 2012 P3
| Question | Answer |
|---|---|
| The bending of light rays as they enter a new medium is called ____________. | Refraction |
| What happens when light passes from air into water? | It slows down |
| An image of a distant object caused by refraction of light is called a ______________. | Mirage |
| A curved piece of glass used to refract light is called a _________. | Lens |
| Because the light rays never meet, a concave lens can produce only a ___________. | Virtual image |
| What happens when light strikes a black object? | No light is reflected or all light is absorbed |
| What color would a tomato be under a blue light? | Black |
| Any two primary colors of light combined in equal amounts produce what? | Secondary color |
| The primary colors of light are: | Red, green, and blue |
| Opaque substances that are used to color other materials are called ___________. | Pigments |
| The colored ring of muscle that controls the size of the pupil is called the _____________. | Iris |
| Rods and cones are the light sensitive cells on the _______________. | Retina |
| A person is near-sighted if he/she has eyeballs that are a little too ___________. | Long |
| What instruments use lenses or mirrors to collect and focus light from distant objects? | Telescopes |
| The overall force of an object after all the forces are added together is called the ________ force. | Net force |
| The downward force acting on an object in free fall is the force of ___________. | Gravity |
| The force of gravity between you and Earth is greater than the force of gravity between you and a car, because Earth has more ____________ than the car. | Mass |
| The material through which a wave travels is called a _____________. | Medium |
| An object that travels faster than sound is said to travel at ________ speed. | Supersonic |
| Energy that does not require a medium to travel and is transferred by electromagnetic waves is called electromagnetic __________ | Radiation |
| The radio waves with the shortest wave lengths and highest frequencies are called: | Microwaves |
| Red light has the longest __________ of any color of visible light. | Wavelength |
| The part of the Electromagnetic spectrum that you can see is called __________ light. | Visible |
| The Electromagnetic waves that have the lowest frequencies are called ___________. | Radio waves |
| _____________ are used to make images of bones inside the human body. | Xrays |
| Diffuse __________ occurs when parallel rays of light hit a bumpy or uneven surface. | Reflection |
| A materials index of refraction is a measure of how much a ray of light _________ when it enters that material. | Bends |
| An opaque object has a particular color because it reflects some wavelengths of light and _________ the rest. | Absorbs |
| The __________ is the part of the eye that looks black. | Pupil |
Created by:
Ms. Traynor-Grimes (Ms.TG)
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