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Review. A push or pull is what?. 2. Force exerted by every object in universe on every other object ? a. force b. gravity c. speed d. acceleration. 3. Force that opposes motion between surfaces a. force b. gravity c. friction d. acceleration.

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Review

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  1. Review

  2. A push or pull is what?

  3. 2. Force exerted by every object in universe on every other object?a. forceb. gravityc. speedd. acceleration

  4. 3. Force that opposes motion between surfaces a. forceb. gravityc. frictiond. acceleration

  5. 4. Whitney walks 40 m in 2 sec. What is her speed?a. 40 m/sb. 80 m/sc. 10 m/sd. 20 m/s

  6. 5. Units for mass are?a. m/sb. m/s2c. Nd. kg

  7. 6. What is a way that friction is helpful in your life? Be specific!!!

  8. 7. If Pumpkin has a mass of 5 kg on the moon, what will his mass be on earth?a. less than 5 kg b. 5 kg c. more than 5 kg d. nothing

  9. 8. Usually, what has lower friction? A. rolling kineticB. sliding kinetic

  10. 9. Gravitational force on an objecta. massb. weight

  11. 10. Which is a force?a. inertiab. gravityc. speedd. acceleration

  12. 11. Acceleration includesa. Speeding upb. Slowing downc. changing directiond. all of the above

  13. 12. If Pumpkin weighs 90 N on the moon, what will he weigh on earth?a. less than 90 N b. 90 N c. more than 90 N d. nothing

  14. 13. If mass of the earth increased, Gravitational forces would a. increase b. decrease c. not change

  15. 14. If distance from the earth increased, Gravitational forces would a. increase b. decrease c. not change

  16. 15. Units for acceleration are?a. m/sb. m/s2c. Nd. kg

  17. 16. Amount of matter in an objecta. massb. weight

  18. 17. What is a way to reduce friction in your life? Be specific!!!

  19. a. car with negative accelerationb. Car with positive accelerationc. Car with constant speedd. car not moving 18. This graph shows

  20. a. m/sb. m/s2c. Nd. kg 19. What are the units for weight?

  21. 20. Shannon runs to Trisha’s house at 4 m/s. In 2 seconds she comes to a complete stop (0m/s). What is her acceleration? Remember to have negative number if deceleration.V f – V sTime

  22. 21. This ball is not moving because the forces acting on it are equal but opposite in direction…they are said to be?a. net forcedb. neutralc. balancedd. unbalanced

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