27324814
Description
Flashcards by Declan Squire - SCHOOL ACCOUNT, updated more than 1 year ago
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Created by Declan Squire - SCHOOL ACCOUNT
about 4 years ago
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| Question | Answer |
| Science practical: a lit splint or match placed in the gas: | Hydrogen gas test |
| Science practical: A glowing splint placed in the gas: | Oxygen gas test |
| Science practical: the gas is bubbled through limewater | Carbon dioxide test |
| Science practical: Hydrogen result | Burns with a squeaky pop |
| Science practical: Carbon dioxide result | Limewater turns milky |
| Science practical: Oxygen test result | Splint relights |
| States of matter: particles are packed closely together in a lattice: | Solid |
| States of matter: The particles are far apart and move very quickly | Gas |
| States of matter: Can be compressed | Gas |
| States of matter: Can take the shape of its container | Liquid/gas |
| States of matter: The particles are free to move but are very close together: | Liquid |
| States of matter: The particles vibrate in a fixed position: | Solid |
| Solid to liquid | Melting/liquification |
| Liquid to gas | Evaporation |
| Solid to gas | Sublimation |
| Gas to liquid | Condensation |
| Liquid to solid | Freezing/solidification |
| Light bounces off an object | Reflection |
| Light passes through an object | Transmission |
| Light energy is transformed | Absorption |
| Light changes speed and/or direction in a different substance | Refraction |
| When light is spread out into its different colours (spectrum) | Dispersion |
| Four rules that must be followed when drawing ray diagrams | 1. Use a ruler 2. Draw an arrow on EVERY light ray drawn going towards the surface 3. Draw an arrow on EVERY light ray drawn going away from the surface 4. Draw the path of at least 3 light rays |
| Name 2 common uses of concave mirrors | 1. Torches/flashlights 2. Solar cookers |
| Name 2 common uses for convex mirrors | 1. Blind corner mirror 2. Security mirror |
| The clear front part of the eye that refracts light slightly towards the pupil | Cornea |
| The hole that allows light to enter the eyeball | Pupil |
| The coloured part of the eye that controls the size of the pupil | Iris |
| The convex shaped object that focuses light onto the retina | Lens |
| The layer of cells that collect light and produce electrical signals | Retina |
| The nerve that sends signals to the brain from the eye. | Optic nerve |
| The time taken for a planet to rotate once on its axis? | A day/24 hours |
| T | A |
| The change in average temperature and weather due to the tilt of a planet's axis | S |
| The apparent change of the moon over a month | M |
| The rise and fall of the sea due to the gravitational pull of the moon | Tides |
| The moon passing through the shadow of the earth | Lunar eclipse |
| T | Solar eclipse |
| What is the name of the moon phase when there is a solar eclipse? | New moon |
| What is the name of the moon phase when there is a lunar eclipse? | F |
| Where do all stars form? | A |
| W | Gravitational forces (gravity) |
| What process produces light and heat in a star? | Nuclear fusion |
| What name is given to a very large star? | A giant star |
| What is an exploding star called? | A nova or supernova |
| What name is given to a very small star? | A |
| Describe what happens to a medium-sized star later in its life | Increases in size forming a red giant star THEN Forms a planetary nebula THEN Cools and shrinks to a white dwarf star |
| D | Increases in size forming a supergiant star THEN Explodes in a supernova and forms a black hole OR Explodes in a supernova and |
| A spherical (or near-spherical) object that orbits around the sun | P |
| Provides a gravitational pull on the planets to keep them in orbit | T |
| A natural or man-made object that orbits a planet | A satellite |
| The natural satellite of the earth | The moon |
| Chemical or physical change: the change can be easily reversed | Physical |
| C | |
| Chemical or physical change: Heat energy is absorbed or released | Both physical and chemical |
| T | C |
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