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WorksheetsLight & Sound
Total questions: 12
Worksheet time: 12mins
How is a shadow formed?
only when the moon goes in front of the sun
when light from a light source is blocked by an object
when an object stops producing light
only during night time
Which type of dangerous radiation is produced by the sun?
(a)
Which of the following things can UV radiation cause to our bodies?
skin cancer
hay fever
damaged cells
cataracts
sunburn
Darkness is caused by...
light reflecting on surfaces
the absence of light
the moon producing darkness waves
Light is required in order to...
cook things
see things
water plants
What does the size and shape of a shadow depend on?
the moon's position
distance of light from an object/ screen
size of object
the brightness of a light source
How does light travel?
(a)
Why can objects be seen?
because light bends around objects
because light travels in a straight line from a light source to an object and then to our eyes
because light travels in a straight line from a light source to our eyes
Why do shadows have the same shape as the objects that cast them?
because light bends around an object
because light travels in straight lines
because light travels through the object
Why can we hear sounds?
because special radiation travels from the source of the sound to our ears
because vibrations from the source of a sound travel through a medium to our ears
because our ears have special sensors which detect sound radiation
When thinking about sound, what does pitch mean?
how long a sound lasts for
how low or high a sound is
how nice a sound is
Finish the sentence. Sounds get fainter as...
the distance from the sound source decreases
the distance from the light source increases
the distance from the sound source increases
the distance from the light source decreases
