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WorksheetsScience Unit 5 Grade 5
Total questions: 28
Worksheet time: 20mins
The correct sentence about light source is
Made when light from a source is blocked.
Light from the light sources and enters our eyes.
This quantity can be measured.
Changes the size of a shadow
The correct sentence about light intensity is . . . .
Made when light from a source is blocked.
This quantity can be measured.
Light from this enters our eyes.
Changes the size of a shadow
Alfi uses a flashlight to reflect light into Ester’s eye.
Material Y reflects the light so that Ester can see an image of the flashlight. Which material can Y be made from?
Cotton
Clay
Mirror
Card
Alfi uses a flashlight to reflect light into Ester’s eye and Ester moves. Her eye is in a new position.
What must Alfi do to the flash light so Ester can see the reflected light?
change the angle
turn off the flash light.
change the mirror.
change the flash light.
Yusuf measures light intensity.
Yusuf puts the sensor near the lamp to measure the light intensity. What does the light intensity mean?
colour of light.
brightness of light.
reflection of light.
direction of light.
The light from the flashlight is reflected by the material.
When this happens the light changes . . . .
shape
bounced
absorbed
direction
Zaky draws a picture. He uses the picture to explain how he sees a book.
The lamp produces . . . of light.
lines
jumps
rays
arrows
Zaky draws a picture. He uses the picture to explain how he sees a book
The surface of the book . . . the light
arrows
arrows
takes in
reflects
Look at the picture of a swan floating on a water.
Which word describes why it looks like there are two swans in the picture?
transparent
reflection
shadow
intensity
An astronaut is on the Moon. She looks at the Earth
Why can the astronaut see the Earth from the Moon?
Light comes from the Moon.
Light comes from the Sun.
Light comes from the Earth.
Light comes from the sea on the Earth.
Which objects classify as " light sources"
Campfire
Diamond
Lightning
Star
The Moon
Which objects classify as "Not Light Sources"
Campfire
Diamond
Lightning
Star
The Moon
In which of these objects can you see your reflection?
glass window
cotton towel
writing paper
metal spoon
Why can we see our reflection in the mirror?
Because it has smooth surface
Because it has rough surface
Because it’s shiny
Because it’s dull
The correct light sources are .
tree
star
light bulb
cat
The correct natural light sources are
light stick
star
fireworks
lightning
The correct man made light sources are
light bulb
Sun
Moon
campfire
We should not look directly at bright sources of light such as the Sun, because
(a)
A brightly lit area has . . . light intensity than a dimly lit area
(a)
An astronaut is on the Moon. She looks at the Earth.
The astronaut can see the Earth from the Moon because the light hits the Earth and is . . . . This light reaches the astronaut on the Moon.
(a)
An astronaut is on the Moon. She looks at the Earth.
The astronaut sees the Earth because the light enters her . . .
(a)
Mike and Lily use a flashlight. They shine the light from the flashlight onto different materials. The light then travels onto the wall.
The name of the material that can be used in this investigation is
(a)
Look at the picture
Light source: . . . .
(a)
Look at the picture
Is the light source natural or man-made?
(a)
Five friends jump in the air
Explain why it looks like there are ten friends in the picture.
(a)
Write down one use of mirrors in our daily lives
(a)
Write down two pieces of apparatus that we could have used to measure the light intensities
(a)
Look at the readings in the table
A suitable light intensity for reading a book is between 300 lux and 700 lux. Should Tom read under the light of a full Moon on a clear night at the beach? Why?
