Independent Review Forces and Motion. Which of Newton’s Laws does the following best describe? 1. A golfer swings the clubs and hits the golf ball to.

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Newton’s Laws of Motion

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Presentation transcript:

Independent Review Forces and Motion

Which of Newton’s Laws does the following best describe? 1. A golfer swings the clubs and hits the golf ball to the green. 2 nd Law!!!

Which of Newton’s Laws does the following best describe? 2. The Earth revolves around the sun about every 365 days. 1 st Law!!!

Which of Newton’s Laws does the following best describe? 3. A boat pulls a skier across a lake. 2 nd Law!!!

Which of Newton’s Laws does the following best describe? 4. A plate stays on the table as the table cloth is ripped off. 1 st Law!!!

Which of Newton’s Laws does the following best describe? 5. A person walks up the stairs. 3 rd Law!!!

6 N 4 N 9 N 6. What is the net force and direction of movement? 1 Newton to the right

6 N 2 N 7. Balanced or Unbalanced??? 8 N

8. The figure below shows two equal forces acting on a box. The box is seen from above. In which direction will the box move? Southwest

9. Which graph to the right shows an object that is NOT MOVING? Graph C

10. Which graph to the right shows an object that is moving at a CONSTANT SPEED? Graph B

11. Which of the graphs to the right shows an object that is SPEEDING UP? Graph B

12. Which of the graphs to the right shows an object that is moving at a CONSTANT SPEED? Graph D

13. Which of the graphs to the right shows an object that is SLOWING DOWN? Graph C

14. Which of the graphs to the right shows an object that is SPEEDING UP and SLOWING DOWN back and forth? Graph A

15. Name ALL the graphs to the right shows an object that is accelerating? Graphs A, B, and C.

16. The graph to the right shows the motion of a cat over time. What was the cats average speed? 0.8 m/s

17. The graph to the right shows the motion of a cat over time. During which interval does it show the cat was moving the FASTEST? A) Between 0 and 40 seconds. B) Between 40 and 60 seconds. C) Between 60 and 100 seconds.

18. The graph to the right shows the motion of a cat over time. During which interval does it show the cat was STATIONARY? A) Between 0 and 40 seconds. B) Between 40 and 60 seconds. C) Between 60 and 100 seconds.

19. The graph to the right shows the motion of a cat over time. During which interval does it show the cat was moving the SLOWEST? A) Between 0 and 40 seconds. B) Between 40 and 60 seconds. C) Between 60 and 100 seconds.

20. The graph to the right shows the motion of a cat over time. What is the cat’s average speed for the first 40 seconds of the trip? 0.5 m/s

21. What is the acceleration of the above box? 4.5 m/s 2 10 kilograms 45 Newtons of force

22. A 12x12 moving box was loaded into a moving truck. If it took 800 joules to get the box 5 meters to the truck, how much force was applied to the box? F = 160 Newtons

23. A 12 kg ball was kicked and hit another student. The ball accelerated at 4 m/s 2. How much force did the student take on impact? F = 48 Newtons

24. A student lifted a book weighing 120 Newtons off the ground 1.5 meters. How much work did the student do? W = 180 joules

25. A roller coaster is pulled up the first hill with a force of 225 N. It uses 18,000 joules of energy to get the roller coaster up the hill. How tall must the first hill of the roller coaster be? d = 80 meters

26. Tommy hit a golf ball with a force of 1125 Newtons and it gave the ball an acceleration of 45 m/s 2. What is the mass of the golf ball? m = 25 grams

The End!!! Please return the power point to the first slide!!!