WorksheetsUnit - 3 Lesson review
Total questions: 30
Worksheet time: 30mins
When a light source is shining at different sides of an object, the ……………………of the shadows formed will be different
(a)
Light is a form of ………………
(a)
Magnifying glass is a (a) material.
Shadows can be different (a) based on the position of the object or the light source.
When light cannot pass through an object, a (a) is formed.
The shadow gets (a) as an object moves closer to a light source.
Your shadow will be (a) in the morning.
The ………………of a shadow change when the distance between the light source and the object changes.
(a)
The Sun and stars are ………………. of light.
(a)
The sun's position in the sky affects the (a) of the shadow.
Clean water is an example of (a) material.
Translucent materials ……………… light so it is harder to see through them.
(a)
When we do science experiments, we have to wear (a) to protect our eyes.
The puppet makes an image called a ………….… on the screen.
(a)
Light travels in .......................... lines
straight
curve
The material that doesn't let any light get through is called .............. material.
transparent
translucent
opaque
The further the light source from an object is, the ............... the shadow will be.
bigger
smaller
same size
When the sun is overhead, the shadows are much ………….....
shorter
longer
bigger
We cannot make a shadow with .................. materials.
transparent
translucent
opaque
When light is shone on an object which allows all the light to pass through it, so that object is called translucent materials.
true
false
When light is shone on a book, a dark shadow is formed.
true
false
Egg shell is a transparent material.
true
false
The object which allows light to pass through partially is called an opaque object.
true
false
Sunglasses that are more opaque than other glasses are called translucent materials.
true
false
We can make a shadow puppet because our hands are opaque.
true
false
The audience can see the shadows of puppets when we use opaque materials instead of translucent paper for a theatre screen.
true
false
Shadows have many colours.
true
false
If you want to get bigger image on the screen, how will you make to the puppet?
What must you do to the puppet to create a smaller image?
Why do people want to have translucent shade on bright light bulb?
![[Physics] Chapter Force & Pressure (Pressure in Liquid)](https://cf.quizizz.com/image/image-loader.svg)
