Which of the following best describes the condition of equilibrium in the context of forces and motion?

The net force acting on the object is zero, resulting in no acceleration.

A 2 kg book is at rest on a table. What is the force of gravity acting on the book, and what is the normal force exerted by the table on the book?

Force of gravity = 19.62 N (downward), Normal force = 19.62 N (upward)

9th Grade•80 minutes•HS-PS2-1

I can apply Newton's laws of motion to explain how forces affect the movement of objects.

Newton's first law describes inertia, which is an object's tendency to resist changes in its state of motion or rest.

Newton's second law states that net force is equal to mass times acceleration, or F = ma.

Newton's third law states that for every action, there is an equal and opposite reaction.

This lesson includes 12 practice questions to reinforce learning.

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1. According to Newton's first law, what is required to change the motion of an object?

2. Explain how mass relates to inertia.

3. What does F(net) represent in Newton's second law?

...and 9 more questions

Newton's Laws of Motion | Learn about Sir Isaac Newton for Kids

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