Force and Motion Assessment

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2. The law of Inertia states that A. An object in motion will accelerate when a force acts on an object B. An object that hits an unbalanced force will accelerate C. Two objects that hit each other and is absorbed by its surroundings. D. An object’s tendency to resist a change whether in motion or at rest.

• A
• B
• C
• D

3. A lamp sitting on a table demonstrates which law? A. Newton’s first law B. Newton’s second law C. Newton’s third law D. None of the above laws

• A
• B
• C
• D

4. According to Newton’s second law, the acceleration of an object depends on its__________. A. mass and net force B. mass and distance. C. volume and gravitational pull D. weight and friction coefficient

• A
• B
• C
• D

5. When conducting the Crash dummy lab, what was the unbalanced force? A. The car as it was riding down the ramp B. The car as it was at the top of the hill C. The distance that the dummy flew D. The marker when it got hit by the car

• A
• B
• C
• D

6. What conclusion could be made in the Phet lab where we found the time it took different objects to reach the velocity of 40m/s. A. As you increase the mass, the acceleration also increases. B. As you increase the mass, the acceleration decreases. C. As you increase the force, the acceleration decreases. D. As you decrease the mass, the force decreases.

• A
• B
• C
• D

7. What is the difference between the velocity and the speed of an object? A. Velocity is the change in distance over time, while speed is the change in velocity over time. B. Velocity has a direction associated with it, while speed has no specific direction. C. Velocity has no direction associated with it, while speed has a specific direction. D. Velocity is the change in speed over time, while speed is the change in distance over time.

• A
• B
• C
• D

8. What is the independent variable of the graph? A. Distance B. Time C. Weight D. Speed

• A
• B
• C
• D

10. Motion occurs when an object changes its___________. A. Mass B. Volume C. Position D. Force

• A
• B
• C
• D

11. The distance between an object and a reference point is the object’s_________. A. Position B. Velocity C. Displacement D. Neutral point

• A
• B
• C
• D