Junior Cert Science
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Light is a form of _____ | Energy
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| What do you call the instrument whose vanes move when light shine on them | Crookes radiometer
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| What do you call an object that gives out light | Luminous object
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| What do you call an object that does not give out light | Non-luminous object
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| How does light travel | Straight lines
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| To demonstrate that light travels in straight lines you would need what apparatus | Cardboard sheets with hole and a light
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| What is created if an object blocks light | Shadow
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| What do you call the part of a shadow where light is blocked completely | Total shadow
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| What do you call the part of a shadow where some light is getting through | Partial shadow
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| Light bouncing back of an object is called what | Reflection
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| In reflection the angle that light rays hit an onbject is of entry is _______ to the exit angle | Equal
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| What do you call an object that can emit a narrow beam of light | Raybox
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| What do you call an object that can be used to see over a wall | Periscope
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| How many mirrors are in a periscope | Two
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| What angle are the mirrors in a periscope positioned | 45 degrees
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| What do you call the bending of light from one medium to another | Refraction
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| In refraction why does the object appear bent | Different mediums have different density
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| Give another name for a concave lens | Converging lens
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| Give another name for a convex lens | Diverging lens
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| What type of lens will bring light rays together | Convex lens
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| What type of lens spreads light rays out | Concave lens
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| How many colours make up white light | Seven
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| What do you call the breaking up of white light into its colours | Dispersion
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| What do you call the triangular glass block used to break up white light | Prism
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| What term is given to the band of seven colours | Spectrum
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| What colour is missing, red, orange, green, blue, indigo, violet | Yellow
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
gcu science
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