Shadows
Lesson 2 / 8
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Waxaan sharxi karaa waxa dhaca marka iftiinku safro iyo sida hadhyadu u samaysmaan.
Introduction
In this lesson: I can describe what happens when light travels and how shadows can form. Transparent objects transmit light (let light travel through them). Opaque objects do not transmit light through them. Light travels in straight lines at an extremely high speed, spreading out as it travels.
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Quizzes
1. It is completely dark inside a room. Which of the following statements explains why?
- The light in the room is black.
- Correct answer:There is no light in the room.
- The darkness in the room cancels out the light.
2. Which of the following statements explains how we can see an object?
- Light from our eyes reaches the object.
- Light from our eyes reaches the object and returns to our eyes.
- Correct answer:Light from the object reaches our eyes.
- Light from the object reaches our eyes and returns to the object.
3. A person stands in a room and looks into a mirror. They can see the room in the mirror. Which of the following statements explains why?
- There is another, identical room behind the mirror.
- Correct answer:Light from the room bounces off the mirror and into our eyes.
- The mirror takes a picture of the room, like a camera, and then displays it.
- The mirror is controlled by an app that makes it show a picture of the room.
4. Which of the following is a word meaning ‘what we see in a mirror’?
- eclipse
- shadow
- Correct answer:reflection
- echo
5. Which of the following correctly describes what a shadow is?
- Darkness that comes out of an object.
- A dark area that is attached to an object.
- Correct answer:A dark area due to an object blocking light.
6. Which of the following statements is correct?
- Red objects have red shadows.
- Correct answer:Larger objects have larger shadows.
- The shadow of an object is always the same size as the object.
1. Which of the following statements about light rays are correct?
- Correct answer:Light rays are straight.
- Light is made up of light rays.
- Light rays show how bright the light is.
- Correct answer:Light rays point in the direction that light travels.
- Light rays show all of the light coming from an object.
2. Which of the following statements are correct?
- It takes no time for light to travel from an object to your eyes.
- Correct answer:Light travels extremely fast.
- Correct answer:Most surfaces reflect some light.
- Most surfaces do not reflect light.
3. Why does a lamp look dimmer when you are farther away from it?
- Correct answer:Less light from the lamp reaches your eyes.
- White light changes to grey light as it travels.
- Correct answer:The further light travels, the more it spreads out.
- The darkness between you and the lamp cancels out some of the lamplight.
- The darkness between you and the lamp absorbs (soaks up) some of the lamplight.
4. Which of the following statements correctly describe why some objects have shadows?
- Correct answer:Some objects are opaque.
- Correct answer:Light travels in straight lines.
- Some objects change the colour of light.
- Some objects change the direction of light.
5. Which of the following explains why the shadow of a tree on the ground moves during a sunny day?
- The distance between the tree and the Sun changes.
- The distance between the ground and the Sun changes.
- The shadow is always on the same side of the tree from the Sun.
- Correct answer:The shadow is always on the opposite side of the tree from the Sun.
What pupils see
The same lesson as a pupil sees it. You can set any section as work on its own.
- IntroductionPrepare
- Starter quizActivate · 6 questions
- Lesson videoLearn
- Exit quizCheck · 5 questions