Force and Motion Test Review Test is Friday, Dec. 2nd ! Study your Review and your Science Journal
#1 What is the formula for calculating speed? Speed = Distance or Distance ÷ Time Time
#2 What is the formula for calculating average speed? Average Speed = Total Distance Total Time
#3 On a motion graph, what is graphed on the X axis? Time What is graphed on the Y axis? Distance
#4 A cat traveled 81 meters in 9 seconds. What is its speed? = 9m/s S = D T = 81m 9sec
#5 A turtle traveled 600 meters in 3 hours. What is its speed? S = D T = 200m/h
#6 A car travels 312 kilometers in 12 hours. What is its speed? = 26 km/h S = D T = 312km 12h
#7 A girl runs a 10 kilometer race in 2 hours. What is her speed? = 5km/h S = D T = 10km 2h
#8 AS = TD TT = 60km + 0km + 40km 2h + 1h + 2h = 100km 5h = 20km/h On a trip in a car, you travel 60 kilometers for the first 2 hours, then stop for an hour, and the last 2 hours you travel 40 kilometers. What is the car’s average speed for the trip? AS = TD TT = 60km + 0km + 40km 2h + 1h + 2h = 100km 5h = 20km/h
#9 Which has a greater speed, a hawk that travels 600 meters in 60 seconds or a tiny warbler that travels 60 meters in 5 seconds? HAWK S = D T = 600m 60sec = 10m/s Tiny Warbler S = D T = 60m 5sec = 12m/s
#10 AS = TD TT = 100km 2h = 50km/h AS = TD TT = 100km 3h = 33.3km/h Two drivers start at the same time to make a 100 kilometer trips. Driver 1 takes 2 hours to complete the trip. Driver 2 takes 3 hours, but stops for an hour at the halfway point. Which driver had a greater average speed for the whole trip? AS = TD TT = 100km 2h = 50km/h Driver 1 AS = TD TT = 100km 3h = 33.3km/h Driver 2
#11 George flew from Austin to New York City, a distance of 560 km. The trip took 4 hours. What was the speed of the jet? S = D T = 560km 4h = 140km/h
#12 A bamboo plant grows 15 centimeters in 4 hours. At what average speed does the plant grow? AS = TD TT = 15cm 4h = 3.75cm/h = 3.8cm/h
#13 Complete the graph based on the information provided. 10 9 8 7 6 Distance (cm) 5 4 3 2 1 1 2 3 4 5 6 7 8 9 10 Time (s) Label the X axis Time (seconds) and the Y axis for Distance (centimeters). Number each line 1 -10. The first 3 seconds the turtle travels 2 centimeters The turtle then rests for 4 seconds The last 3 seconds the turtle travels 3 centimeters
#13 Complete the graph based on the information provided. 10 10 9 9 9 8 8 8 8 8 7 7 7 7 6 6 6 6 6 6 6 Distance (cm) 5 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 What is the turtle’s speed? 2cm / 3s = 0.7 cm/s and 3cm / 3s = 1cm/s How far did the turtle travel in 10 seconds? What was the turtle doing between 7 and 10 seconds? What was the turtle doing at 5 seconds? Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) Time (s) 5cm Moving Resting
#14-#25 14. D 15. T 16.D 17. D 18. S 19. T 20. S 21. S 22. T 23. D 24. S 25. S
#26 - #33 F D B C H E A 26. Motion G 27. Reference Point 28. Velocity a. the distance an object travels in one unit of time b. a push or pull on an object c. equal forces acting on an object in opposite directions d. speed in a given direction e. the force that one object exerts on another when the two rub against each other f. a place or object used for comparison to determine if an object is in motion g. the state in which one object’s distance (position) from another is changing h. a nonzero net force that changes an object’s motion 26. Motion G F 27. Reference Point D 28. Velocity B 29. Force C 30. Balanced Force H 31. Unbalanced Force E 32. Friction A 33. Speed