Explain how mass relates to inertia.

Mass is a measure of inertia. The more mass an object has, the more inertia it possesses, making it harder to change its state of motion.

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

F(net) represents the net force acting on an object, which is the vector sum of all forces acting on the object.

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

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

9th GradePhysics80 min

aligned to Hs-ps2-1

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

10 min

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

Learn Bright

16 min

Key concepts students will learn:

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Newton's first law describes inertia, which is an object's tendency to resist changes in its state of motion or rest.
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Newton's second law states that net force is equal to mass times acceleration, or F = ma.
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Newton's third law states that for every action, there is an equal and opposite reaction.

24 min

12 questions • Multiple choice & Short answer & True/false

5 min

“A 2 kg box is sitting on the floor. What is the net force acting on the box? What is the normal force acting on the box?”

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