WorksheetsLUMINOUS AND NON -LUMINOUS
Total questions: 19
Worksheet time: 10mins
Which object allows you to see your reflection?
mirror
paper
rock
1. What is our main source of light?
moon
trees
sun
What is the main light and heat source?
sun
rain
light bulb
An opaque object produces a __________ which appears on the opposite side of the light source
Shadow
Cloud
Optical illusion
Reflection
When the sun gets higher in the sky, shadows get ______.
darker
gone
shorter
longer
Light bending as it passes from one medium (object) to another is...
Refraction
Reflection
Light bouncing off a mirror is an example of...
Refraction
Reflection
Light is a form of _______ that is needed to support life on Earth.
Vibration
Energy
Motion
Compression
It's called _______ when light bounces off the smooth surface of an object.
Refraction
Reflection
Light bending as it passes through a rain drop is an example of...
Refraction
Reflection
Objects that reflect well are
Matte surfaces
Smooth, shiny surfaces
Dark coloured surfaces
Medium coloured surfaces
What does it mean to reflect?
bend
bounce off
refract
energy
Why does the lower part of the child appear so much different in size from the upper part?
The light rays that travel through water and then into air are refracted.
The light rays that travel through water and then into air are enlarged.
The light rays that travel through air and then into water are reflected.
The light rays that travel through air and then into water are reduced.
The law of reflection states that
Angle of reflection = Angle of translucence
Angle of incidence = Angle of reflection
Angle of incidence = Angle of incidence
Angle of reflection = Angle of reflection
Which is a natural source of light?
cell phone lights
headlights
flashlight
lightning
Burning Candle
Luminous
Non luminous
Glow worm
Luminous
Non- luminous
Luminous means...
Gives out its own light
Reflects light from other things
Moon
Luminous
Non-luminous
