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Newton’s Laws

Newton’s Laws. Forces and Motion. A force that is applied by gravity to an object. Normal Force Weight Natural Force Friction Tension None of These. [Default] [MC Any] [MC All]. Any force applied to an object by a surface. Tension Normal Force Weight Normal force Balanced force

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Newton’s Laws

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  1. Newton’s Laws Forces and Motion

  2. A force that is applied by gravity to an object • Normal Force • Weight • Natural Force • Friction • Tension • None of These [Default] [MC Any] [MC All]

  3. Any force applied to an object by a surface • Tension • Normal Force • Weight • Normal force • Balanced force • None of These [Default] [MC Any] [MC All]

  4. A force that is applied to an object through a string, rope, or chain is called… • Friction • Natural Force • Normal Force • Net Force • Tension • None of these [Default] [MC Any] [MC All]

  5. A force that resists the motion of an object is called… • Natural force • Friction • Weight • Normal Force • Applied Force • None of these [Default] [MC Any] [MC All]

  6. Which direction does weight act? • To the right • To the left • North • South • Up • Down • At some angle to the horizontal [Default] [MC Any] [MC All]

  7. What direction does the friction force act? • Perpendicular to the surface in the same direction as the motion. • Parallel to the surface in the same direction as the motion. • Perpendicular to the surface in the opposite direction of the motion. • Parallel to the surface in the opposite direction of the motion. • At some angle to the surface not related to the motion. [Default] [MC Any] [MC All]

  8. What direction does the Normal force act? • Perpendicular to the surface pointing toward the surface. • Perpendicular to the surface pointing away from the surface. • Parallel to the surface pointing in the direction of motion. • Parallel to the surface pointing opposite the direction of motion. • At some angle to the surface unrelated to the motion. [Default] [MC Any] [MC All]

  9. Net force can be calculated which of the following ways. (Choose all that apply.) • Adding all of the force magnitudes together • Adding all of the force vectors together • Multiplying mass times acceleration • Multiplying mass times velocity • Dividing mass by acceleration • Dividing mass by velocity [Default] [MC Any] [MC All]

  10. Friction depends on what factors? Choose all that apply. • Weight • Normal force • Applied force • Surface textures • Surface Area • None of these [Default] [MC Any] [MC All]

  11. Newton’s 1st Law is best summarized as… • Action-Reaction • Unbalanced Forces • Inertia • Gravity • None of these [Default] [MC Any] [MC All]

  12. Newton’s 3rd Law can be best summarized as … • Action-Reaction • Unbalanced Forces • Inertia • Gravity • None of these [Default] [MC Any] [MC All]

  13. What quantity ties forces acting on an object and the motion of the object together? • Velocity • Net force • Normal force • Mass • Acceleration [Default] [MC Any] [MC All]

  14. What happens to the acceleration of a given object if the Net Force acting on it is doubled? • Stays the same • Double the original • Quadruple the original • Becomes half of the original • Becomes one-quarter of the original [Default] [MC Any] [MC All]

  15. What happens to the acceleration if the Force remains constant and the mass is doubled? • Stays the same • Double the original • Quadruple the original • Becomes half of the original • Becomes one-quarter of the original [Default] [MC Any] [MC All]

  16. If Action-Reaction force pairs are equal and opposite, are they balanced forces? • Yes, they cancel each other out • No, because they are acting on different objects • The answer depends on the specific problem [Default] [MC Any] [MC All]

  17. An object has a mass of 65 grams on Earth. How much mass does it have on the moon? (g=1.6 m/s2) • 0.104 g • 0.638 g • 6.63 g • 40.6 g • 65 g • 104 g • 638 g [Default] [MC Any] [MC All]

  18. An object has a mass of 65 grams on Earth. How much does it weigh? • 0.104 N • 0.638 N • 6.63 N • 40.6 N • 65 N • 104 N • 638 N [Default] [MC Any] [MC All]

  19. An object has a mass of 65 grams on Earth. How much does it weigh on the moon? (g=1.6 m/s2) • 0.104 N • 0.638 N • 6.63 N • 40.6 N • 65 N • 104 N • 638 N [Default] [MC Any] [MC All]

  20. Which statements below are true if an object is said to be in “equilibrium”? (Choose all that apply) • All of the horizontal forces are balanced • All of the vertical forces are balanced • Horizontal forces are balanced, but vertical forces are not balanced • Vertical forces are balanced, but horizontal forces are not balanced • Net Force is zero • None of these are true statements [Default] [MC Any] [MC All]

  21. A 6 kg bowling ball is given an acceleration of 2 m/s2. How much force was required? • 2 N • 3 N • 6 N • 9.81 N • 12 N • None of these [Default] [MC Any] [MC All]

  22. A large dog weighs 400 N. What is the mass of the dog? • 9.81 kg • 40.77 kg • 400 kg • 3924 kg • None of these [Default] [MC Any] [MC All]

  23. What is the Net Force on a 20N stone if you apply an upward force of 27 N on it? • 0 N • 7 N, up • 7 N, down • 20 N, up • 20 N, down • 27 N, up • 27 N, down • 47 N, up • 47 N, down • None of these [Default] [MC Any] [MC All]

  24. What is the acceleration on a 20N stone if you apply an upward force of 27 N on it? • 0 m/s2 • 2.04 m/s2 • 2.54 m/s2 • 2.75 m/s2 • 3.43 m/s2 • None of these [Default] [MC Any] [MC All]

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