Forces and Motion

2. Forces and Motion Go To Score Card

3. Forces: 200 • Question: • Push or pulls are this in physical science. • Answer: • What is a force? Back

4. Forces : 400 • Question: • This is required to change the motion of an object. • Answer: • What is an unbalanced force? Back

5. Forces : 600 • Question: • The unit used to measure force is this. • Answer: • What is Newton? Back

6. Forces : 800 • Question: • Balanced forces affect the motion of an object in this way. • Answer: • What is no acceleration occurs (no change in motion)? Back

7. Forces : 1000 • Question: • The forces that act on a block resting on a tabletop. • Answer: • What are normal force (Fn) and gravitational force (Fg)? Back

8. Gravity: 200 • Question: • This force pulls objects towards the Earth. • Answer: • What is gravity? Back

9. Gravity : 400 • Question: • Acceleration due to gravity has this rate. • Answer: • What is 9.8 m/s2? Back

10. Gravity : 600 • Question: • When gravity is the only force acting on an object it is doing this. • Answer: • What is free falling. Back

11. Gravity : 800 • Question: • This law states that all objects have a gravitational force and exert them on other objects. • Answer: • What is The Law of Universal Gravitation? Back

12. Gravity : 1000 • Question: • Gravitational force between two objects is affected by these two factors. • Answer: • What are mass and distance. Back

13. Net Forces: 200 • Question: • When two forces are equal and oppose each other while pulling on an object, this is the net force. • Answer: • What is zero? Back

14. Net Forces : 400 • Question: • If a chair is pushed west with a force of 2000N and friction opposes it with a force of 150N, this is the net force. • Answer: • What is 1850 N west? Back

15. Net Forces : 600 • Question: • When calculating net force, this should be done with all forces acting in the same direction. • Answer: • What is add them together Back

16. Net Forces : 800 • Question: • If friction has a force of 1 N, this is the net force acting on the block below. • Answer: • What is 27 N left. 8 N 20 N Back

17. Net Forces : 1000 • Question: • This is the direction of the net force of the block in the diagram. • Answer: • What is diagional up and • right? Fa Fa Back

18. Free Body Diagrams: 200 • Question: • The forces acting on a block falling to the floor. • Answer: • What areFg and Ff (air)? Back

19. Free Body Diagrams : 400 • Question: • The object in the diagram is doing this. • Answer: • What is accelerating? Fa Fa Ff Back

20. Free Body Diagrams : 600 • Question: • Draw a free body diagram of a block sitting on a table. • Answer: • What is Back Fn Fg

21. Free Body Diagrams : 800 • Question: • This is the net force of the object in the diagram. • Answer: • What is 9 N right. 15 N 5 N 1 N 4 N 4 N Back

22. Free Body Diagrams : 1000 • Question: • This is a list of all the forces acting on the object in the diagram. • Answer: • What are Faleft, Fa right, Ff, Fg, Fn,? Back

23. Miscellaneous: 200 • Question: • This pair of objects has a greater gravitational force between them. • Answer: • What is pair A? Pair A Pair B Back

24. Miscellaneous: 400 • Question: • If there is no air resistance and a marble and a steel ball are dropped from the same height, they will do this. • Answer: • What is hit the ground at the same time? Back

25. Miscellaneous: 600 • Question: • If an object is in free fall (with no air resistance) for 4 seconds, this will be it’s velocity at the end of the 4 seconds. • Answer: • What is v=g*t • = 9.8 m/s2 * 4 s • =39.2 m/s Back

26. Miscellaneous: 800 • Question: • This force remains the same on a skydiver from the time they leave the plane until they touch the ground. • Answer: • What is gravity? Back

27. Miscellaneous: 1000 • Question: • When a skydiver’s parachute first opens, this force becomes the largest force acting on them. • Answer: • What is air friction? Back

28. Final Jeopardy Category: Forces • Question: • This force opposes an applied force when an object slides across a surface. • Answer: • What is friction? Place your wager. Back

29. Unknown Question • Question: • Not sure why this slide is here. • Answer: • Unknown Category: Calculating Acceleration Back

30. Daily Double You can Wager All or Part of Your Points on This Question

31. Daily Double You can Wager All or Part of Your Points on This Question