WorksheetsYear 8 Light and Space Revision Quiz (8PL)
Total questions: 25
Worksheet time: 15mins
In what direction does gravity act?
Toward the centre of the Earth
Downwards
In all directions all at once
What factors affect the size of the force of gravity between two objects?
How close together the objects are
The mass of the objects
The weight of the objects
The strength of a planet's magnetic field
Choose the statements you believe best describe what is happening in this diagram.
The reflected ray is emitted from the Torch
The observer can see the mirror because light is reflected towards their eye
The incident ray is emitted from the torch
This diagram shows the refraction of light
What do waves transfer?
Energy
Light
Particles (matter)
Sound particles
How many colours are there in white light?
Seven
Eight
Six
Nine
Which shows us the order of light in a rainbow, from least-to-most refracted (bent)
Red Orange Yellow Green Blue Indigo Violet
(Richard Of York Gave Battle In Vain)
Violet Indigo Blue Green Yellow Orange Red
(Violence In Buses Guarantees You Off-peak Returns)
Red and yellow and pink and green
Purple and orange and blue
(Like in the song, 'Sing a Rainbow')
Blue and Orange and Purple and Green and Pink and Yellow and Red
(Like in the song, 'Sing a Rainbow' but backwards, 'cause it's actually wrong)
Using the image as a guide, which answer best describes why a
Leaf is green ?
Leaves appear to be green because
they absorb green light and reflect others
Leaves appear to be green because they transmit all colours except green
Leaves appear to be green because they reflect green light and transmit all other colours
Leaves appear to be green because they reflect green light and absorb other colours of light.
If I wanted to warm my dinner up in the light of the sun, would I be better off:
Putting it in a white box
Putting it in a black box
Putting it in a transparent (clear) box
Putting it in a shiny silver box
My only friend is a snowman - he lives in my (cold) house.
I don't want to be alone in the world again.
How can I make sure he doesn't melt?
Paint my house white
Paint my house black
Paint my house red
Paint my house blue
Move into a house made of glass
What is shown in the diagram above?
Refraction
Transmission
Reflection
Absorption
Refraction is the change in direction of a beam of light as it passes into another substance.
Which of the following statements explain why?
Light will slow down in a medium which is more optically dense
Light will speed up in a medium which is more optically dense
Light will slow down in a medium which is less optically dense
The object will have more gravity
Rainbows are cause by the refraction of white light.
Explain why (pick all that are true).
White light contains all different colours
Different colours have different wavelengths
The wavelength affects how much light is 'bent' during refraction
Refraction takes out the black light ad lets you see the colours
The light rays will bounce off each other
All the answers are true, but only some talk about light waves.
Select all that talk about light waves.
They transmit energy
They travel at 300,000,000 m/s
Longitudinal waves vibrate back-and-forth
Transverse waves vibrate up-and-down
They can travel through space
All the answers are true, but only some talk about sound waves.
Select all that talk about sound waves.
They transmit energy
They travel at
340 m/s
Longitudinal waves vibrate back-and-forth
Transverse waves vibrate up-and-down
They cannot travel through space
Light waves need particles (matter) to transfer energy?
TRUE
FALSE
Sound waves can transfer matter (particles) from the source to the receiver
True
False
You can see some planets in the night sky,
this is because...
They are luminous (give off light)
They reflect light from the sun
They reflect light from distant stars
They are covered in glowing lava
(Like Venus, for example)
When light hits a block of glass at an angle, all of the light is refracted
True
False
It depends, some light will reflect, some will refract
W = m x g
Weight (N) is equal to mass (kg) time the gravitational field strength (N/kg)
Which two statements are not true?
Weight is a force
Your mass will change in a stronger gravitational
Mass is a force
Your weight will change in a stronger gravitational
Your mass does not change
Summertime happens when our part of the Earth
Is tilted away from the Sun
Is tilted toward the Sun
Travels closer to the sun than normal
Is warmed by volcanoes
Winter happens when our part of the Earth
Is tilted away from the Sun
Is tilted toward the Sun
Travels closer to the sun than normal
Is warmed by volcanoes
In the winter...
(select all that apply)
The sun is high in the sky
Light hits the surface of the Earth at a low angle
Days are shorter
Shadows are longer
Which is the correct name for when a solar cell
absorbs light energy and creates a voltage?
Thermal Effect
Chemical Effect
Voltage Effect
Electrical Effect
Chemical effect is when light energy can be absorbed to power a chemical reaction
Which of these are examples of chemical effect?
Solar Cells
Photosynthesis in plants
When I warm my acids and alkalis in the sunlight
The colour changes in old-school photographic film
The law of reflection states that:
The Angle of Incidence = The Angle of Refraction
Which image shows this accurately?
