Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
Primary 4 | Science
One Answer Below
Anyone can contribute an answer, even non-tutors.
Why is 1 the answer?
Date Posted: 2 years ago
Views: 1697
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Again, I got this off from Google. So the rule of thumb here is:
The nearer the light is to the object, the shorter the shadow will be.
If you apply this theory, you will realise that only 1 and 3 makes sense as point B must have the shortest shadow length. However 3 is wrong B cannot be 0 length. So long as the object is not flat on the floor, there is definitely a shadow. Hence, only option 1 is correct. Hence, 1 is the answer.
Hope you understand.
The nearer the light is to the object, the shorter the shadow will be.
If you apply this theory, you will realise that only 1 and 3 makes sense as point B must have the shortest shadow length. However 3 is wrong B cannot be 0 length. So long as the object is not flat on the floor, there is definitely a shadow. Hence, only option 1 is correct. Hence, 1 is the answer.
Hope you understand.
Date Posted:
2 years ago
360 Tutoring Program