STAAR Science - Grade 8: Force & Motion Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. What is position?

Question 2 2. If an object travels 4 meters in 2 seconds, and then another 5 meters in 10 seconds, what is its average speed?

Question 3 3. What does a diagonal line on a position-time graph represent?

Question 4 4. Which of the following is NOT a contact force?

Question 5 5. What is speed?

Page 2

Question 6 6. Which of the following are units for force?

Question 7 7. To describe a force, you must know its size and _____.

Question 8 8. Balanced forces cannot change an object's _____.

Question 9 9. Fill in the blank: When you hit a baseball, the ____ exerts a force on the ball.

Question 10 10. 1. In which way do forces always act?

Page 3

Question 11 11. Which of the following types of graphs does NOT describe the motion of an object?

Question 12 12. How do you calculate the average speed?

Question 13 13. In a position vs. time graph, ________ goes on the vertical axis, and ________goes on the horizontal axis.

Question 14 14. A baseball dropped from a high building would be closest to which speed 3 seconds after dropping it?

Question 15 15. If a person steps out of their front door and runs around the house in 10 seconds, traveling a distance of 400 feet, what is their average velocity, from the time they stepped out the front door until the time they returned?

Page 4

Question 16 16. When a car stops suddenly, your body tends to keep moving ________.

Question 17 17. If you were measuring the distance between two objects on a desk that is 2 feet in width, which of these distance units would make the most sense to use?

Question 18 18. For which of the following objects would the average speed be 20 miles per hour?

Question 19 19. What is another way to say 'the force due to gravity'?

Question 20 20. How can you calculate the velocity of an object from a position-time graph?

Page 5

Question 21 21. What does it mean that force is a vector quantity?

Question 22 22. If you start at the origin, run around for a total distance of 50 meters, and then finish 5 meters from the origin, what is your distance traveled? And what is your change in position?

Question 23 23. Consider an object at rest. Which of the following is true concerning this object?

Question 24 24. If an object increases speed from 4 meters per second to 10 meters per second in 3 seconds, what is the acceleration of that object?

Question 25 25. A car travels 3 meters in 5 seconds, and then 5 meters in the same direction during the next 5 seconds, before stopping for 10 more seconds. Which of the following position-time graphs represents this motion?

Page 6

Question 26 26. A _____ is a push or a pull.

Question 27 27. Fill in the blank: For every action force, there is an equal and opposite ____ force.

Question 28 28. In space, a spacecraft with its engines turned off will move with constant speed in the same _____.

Question 29 29. Balanced forces are _____ in size but opposite in direction.

Question 30 30. A boy is riding a bicycle. He first travels 4 miles in 15 minutes, then he travels 6 miles in 45 minutes. What is the boy's average speed?

STAAR Science - Grade 8: Force & Motion Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

STAAR Science - Grade 8: Test Prep & Practice  /  Science Courses
Support