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Explorer · Grades 4-8

Assignment Practice

Light: Practice 001

Build this science skill step by step

ScienceGrade 7Mixed10 questions15 min
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Inside this assignment

First 4 questions from the learning flow.

Explorer question style
Core Ideas · 5 questionsTry These Situations · 5 questions
Preview onlyStart free practice to answer.

Core Ideas

Choose the best answer for each question.

Choose the best answer for each question.

Question 1
EasyQuestion

A laser pointer makes a straight bright line in dusty air. What property of light does this best show?

Topic: Light Travels · Skill: Explain rectilinear propagation of light

Question 2
EasyQuestion

Why does a sharp shadow form when an opaque book blocks sunlight?

Topic: Light Travels · Skill: Explain rectilinear propagation of light

Question 3
EasyQuestion

In a pinhole camera, why is the image inverted?

Topic: Light Travels · Skill: Explain rectilinear propagation of light

Question 4
EasyQuestion

Which setup would best test that light travels in straight lines?

Topic: Light Travels · Skill: Explain rectilinear propagation of light

What this assignment covers

Progressive practice for Light, focused on a small cluster of related Grade 7 Science skills.

Skills and sections

Explain rectilinear propagation of light, State and apply basic reflection ideas

  • Core Ideas: 5 questions
  • Try These Situations: 5 questions