Newton's Laws of Motion - RI.3.1

1. Read the Introduction [paragraphs 1-3]. Select the sentence from the section that explains force.

• a. Everything around us is in motion.

• b. But nothing can move without a force acting on it.

• c. A force is a push or pull.
• d. Earth's gravity keeps us from floating into space.

2. Read the 5th paragraph below from the section "First Law Of Motion."

Which sentence from the paragraph explains WHY a kicked ball will stop moving?

• a. That's because forces like gravity work to slow them down.
• b. It will move in the same direction and with the same speed forever.
• c. That's because in space, no forces act on it.
• d. Maybe another astronaut catches the tool.

3. In which section of the article would the author add information about the relationship between forces and changes in speed?

• a. "Introduction" [paragraphs 1-3]
• b. "First Law Of Motion"
• c. "Second Law Of Motion"
• d. "Third Law Of Motion"

Based on the passage what is an external force?

• A force that comes from within an object
• A force that acts on an object from the outside
• A force that is not affected by gravity
• A force that can only be applied to stationary objects

5. What is the main idea of the article?

• a. The article explains the Laws of Motion and how they present in the real world.

• b. The first law says that an object at rest stays at rest.
• c. Velocity is the speed of an object in a certain direction.
• d. The third law says that for every action, there is an equal and opposite reaction.

7. How does the "diagrams" text feature help the reader?

• The diagrams are not important to the passage.

• The passage's pictures are photographs, not diagrams.

• The diagrams help the reader see where forces are applied or directed when the different laws are being explained.

8. What is the difference between Newton's first law and second law of motion?

• a. The first law states that nothing moves and the second laws states that objects can move fast.
• b. The first law states that an object will keep moving until something stops or changes it and the second law states that the velocity of the object can change due to other forces.
• c. The first and second laws are basically the same and it is hard to tell the difference.
• d. The first law states that all objects are moving all the time and second law states that they will only stop when it slows down.

10. What is the central idea of What are Newton's Laws of Motion?

Provide text evidence to support your claim.