For 1000 points The effect of the angle of incline of the ramp on distance the cart travels.

2. A science class takes a toy cart and rolls it down an incline. They measure the distance the cart travels. The investigation is repeated changing the angle of incline of the ramp. The mass of the cart and the length of the ramp are kept constant. What is the relationship being studied?

3. For 1000 points The effect of the angle of incline of the ramp on distance the cart travels.

4. A science class takes a toy cart and rolls it down an incline. They measure the distance the cart travels. The investigation is repeated changing the angle of incline of the ramp. The mass of the cart and the length of the ramp are kept constant. What are the dependent and independent variables?

5. For 15000 pointsdependent variable – distance cart travelsindependent variable – angle of incline

6. Write the general mathematical question for each graph depicted below.

7. For 500 pointsa. y = bb. y2 = mx + bc. y = m(1/x) + bd. y = mx + be. y = mx2 + b

8. How would you make a straight line graph for the data below?

9. For 800 pointsInvert the volume values

10. What is the relationship between the variables for the graph below.

11. For 400 pointsPressure is inversely proportional to volume

12. Explain the relative motion for the two objects below.

13. For 200 pointsObject 2 moves slower than object 1 and moves toward the origin, while object 1 moves away from the origin.

14. Explain the relative motion of the two objects in the graph below.

15. For 1000 pointsObject 2 is not moving, while object 1 moves at a constant speed away from the origin.

16. Describe the relative motion for the two objects in the graph below.

17. For 6000 pointsObjects 1 and 2 move at the same speed.

18. What is the average speed for the object shown in the graph below?

19. For 600 points5 m/s

20. How far did the car below travel in 3 seconds?

21. For 500 points75 m

22. What is speed?

23. For 400 pointsSpeed is the distance covered per unit of time, or a measure of how fast an object is moving

24. What value is obtained by looking at the speedometer in a moving car?

25. For 800 pointsinstantaneous speed

26. If you take a trip that covers 200 km in 4 hours, what is your average speed?

27. For 200 points50 km/h

28. What is the pair to the force of a ball pulling on the earth?

29. For 800 points The earth pulling on the ball

30. If a horse exerts a force of 350 N on a wagon to make it accelerate, what force does the wagon exert on the horse?

31. For 10000 points350 N

32. What is the law of inertia?

33. For 4000 pointsAn object in motion will stay in motion and an object at rest will stay at rest unless acted on by an outside force.

34. After a cannonball is fired into frictionless space, how much force is required to keep it going?

35. For 500 pointsNo force is required to keep it going, only to stop it

36. What causes friction?

37. For 5000 pointsFriction is caused by microscopic bumps that act as obstructions to the object’s motion and always acts opposite of motion.

38. A 15-N force and a 30-N force at on an object in opposite directions. What is the net force on the object?

39. For 20000 points15 N

40. When does equilibrium occur?

41. For 8000 pointsWhen the net forces acting on the object are zero, or balanced.

42. A girl whose weight is 400 N hangs from the middle of a bar supported by two vertical strands of rope. What is the tension in each strand?

43. For 7000 points200 N

44. An object weighs 40 N on earth and another object weighs 40 N on the moon. What can you say about their relative masses?

45. For 40000 pointsThe object on the moon has a greater mass.

46. What causes acceleration?

47. For 400 pointsA net force greater than zero.

48. When the mass of an object increases, what happens to the acceleration of an object?

49. For 4000 pointsThe acceleration decreases.

50. How are acceleration and net force on an object related?