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Physical Science Unit Review Unit IV Force and Motion Name: ________________ Need extra help? Check out www.bayhicoach.com Hour: _____ Directions: Answer the following questions. 1. Remember the hockey video. On the assignment you will find Newton's Three Laws of Motion. Write them below using complete sentences. First Law: _____________________________________________________________ _______________________________________________________________________ Second Law: ___________________________________________________________ _______________________________________________________________________ Third Law: _____________________________________________________________ _______________________________________________________________________ 2. Examine the Gravity – A Familiar Force a. The amount of gravitational force between two objects depends on what two things? _________________________________________________________________ b. What are two examples of gravitational force in your daily life? _________________________________________________________________ c. How are weight and mass different on the moon from what occurs on the earth? _________________________________________________________________ 3. What is a force? A _____________________ or a ______________________ 4. Examine the study guide for A Crash Course in Safety. Examine question number seven on the study guide. What does the seat belt do that helps prevent injury? _______________________________________________________________________ 5. Examine the study guide for Newton's Second Law of Motion. a. How are acceleration and mass related when an unbalanced force is applied to an object? ________________________________________________________ _________________________________________________________________ b. Force = mass x ____________________________________ 6. Examine the Force and Acceleration Lab. a. How was a force applied to the car to make it accelerate? _________________________________________________________________ b. This lab shows that mass times acceleration =__________________________ Physical Science Unit IV Force and Motion Name: ________________ Need extra help? Check out www.bayhicoach.com 7. Examine the sheet on Newton's Third Law of Motion. a. Newton's third law states that forces come in __________________. Hour: _____ b. Illustrate (draw a picture of) the following force pairs. Label each of the force pairs in each drawing. 1. person on chair (two pairs) 2. person doing bench presses on a weight bench (three pairs) 3. two people in a tug of war (two pairs) 8. According to Newton's Second Law of Motion why re a the linemen in football so heavy?________________________________________________________________ 9. Define the following terms. force ___________________________________________________________________ gravity _________________________________________________________________ friction _________________________________________________________________ inertia __________________________________________________________________ newton _________________________________________________________________ Physical Science Unit IV Force and Motion A Blast from the Past Name: ________________ Hour: _____ Need extra help? Check out www.bayhicoach.com Match the definition in Column I with the proper term in Column II _____ 10. a push or a pull _____ 11. SI unit of length _____ 12. force of attraction between any two masses _____ 13. units obtained by combining other units _____ 14. amount of space occupied by an object _____ 15. unit used to express volume _____ 16. SI unit of mass _____ 17. amount of matter in an object _____ 18. mass per unit of volume _____ 19. the tendency of a body to resist acceleration _____ 20. instrument used to measure mass _____ 21. interval between two events _____ 22. SI unit of temperature _____ 23. SI unit of time _____ 24. resistance between two bodies in contact _____ 25. kilo_____ 26. centi_____ 27. milli_____ 28. deci_____ 29. hecto_____ 30. deka- a. b. c. d. e. f. g. h. i. j. k. 1. m. n. o. p. q. r. s. t. u. 0.01 volume mass 0.001 meter 10 derived liter 1000 Kelvin friction balance force gravity 100 density time 0.1 gram inertia second Convert the following (remember what happened to King Henry?). = ____________ km 34. 12 cm3 = _________ mL 32. 1.325 L = ____________ mL 35. 1500 mg = _________ g = ____________ cm3 36. 12.5 mm = _________ cm 31. 500 m 33. 1 L 37. One cereal bar has a mass of 37 g. What is the mass of 9 cereal bars? Is that more than or less than 1 kg? Show your work to explain your answer. 38. Wanda needs to move 135 kg of rocks. She can carry 10 hg on each trip. How many trips must she make? Show your work to explain your answer. 39. Dr. Mandrapa is working in her garden. She needs 1 kg of soil for her plants. She has 635 g. How much more soil does she need to complete her task? Show your work to explain your answer.