Science Grade 6-8

Forces & Motion

Apply Newton's Laws to real-world situations and solve problems involving force, mass, and acceleration.

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Apply Newton's Laws to real-world situations and solve problems involving force, mass, and acceleration.

Science - Grade 6-8

Instructions: Show all formulas, substitutions, and units in calculation problems. Answer conceptual questions in complete sentences.

1

State Newton's First Law of Motion in your own words.
2

A 5 kg box is pushed with a net force of 20 N. What is its acceleration?
3

What force is needed to accelerate a 1200 kg car at 3 m/s^2?
4

A ball rolls across the floor and eventually stops. What force caused it to stop?
5

Two teams in a tug-of-war pull the rope with equal force. What is the net force? What happens to the rope?
6

State Newton's Third Law and give an everyday example.
7

A 60 kg person stands on Earth (g = 10 m/s^2). What is their weight?
8

A net force of 8 N acts on a 4 kg object, giving an acceleration of 2 m/s^2. If the mass is doubled to 8 kg with the same force, what happens to the acceleration?