1. Week 6 Test Review

2. What concepts are on the test? 1.Calculate speed 2.What do you need to know to determine an object’s velocity? 3.Calculate acceleration using change in velocity over time (PreAP) 4.Average Speed using a graph 5.Balanced vs. Unbalanced Forces 6.Calculate the force, mass, and acceleration 7.Apply Newton’s Laws of Motion

3. After a spacecraft takes off, its distance is measured and is represented by the graph. What is the average speed of the spacecraft? A.12 km/s B.4 km/s C.3 km/s D.5 km/s

4. The graph shows the distance traveled by a truck over a period of 80 min. What happens to the truck at segment H? A. The truck accelerates B. The truck slows down C. The truck goes backwards D. The truck stops

5. Marc and Joshua are playing tug of war. Marc is pulling left on one end of a rope with 10N of force, while Joshua is pulling on the other end of the same rope with 12N of force. What is the net force acting on the rope? A.12 N to the right B.2 N to the right C.10 N to the left D.22 N to the left

6. 1 st Law Question A cup is sitting on a table, You would expect that the cup will not move until which of the following conditions is met? a. Gravity on the cup can be reduced to zero b. Unbalanced forces act on the cup c. Balanced forces act on the cup. d. Friction is exerted on the cup.

7. If all the forces acting on a moving object are perfectly balanced, then the object will A. slow down and stop B. change the direction of its motion C. Accelerate D. continue moving at a constant speed

8. 2 nd Law question In which of the following situations will the ball have the greatest acceleration? a.A golf ball with a mass of 0.045 kg is struck with a force of 1N b.A baseball with a mass of 0.142 kg is hit with a force of 5 N. c.A soccer ball with a mass of 0.45 kg is kicked with a force of 20 N. d.A bowling ball with a mass of 7.2 kg is thrown with a force of 60 N.

9. If a force of 50 N is applied to each of the 3 objects, which one will have the greatest acceleration? A.Object X B.Object Y C.Object Z ObjectMass (g) X25 Y50 Z75

10. 3 rd Law Question Without friction or air resistance, Sphere Y would be expected to react by swinging out in the opposite direction - Without friction or air resistance, Sphere Y would be expected to react by swinging out in the opposite direction – a.To a height that could hardly be detected. b.To half the original height of Sphere X c.To the same original height as Sphere X. d.To twice the original height of Sphere X.

11. 1.C 2.D 3.B 4.B 5.D 6.C 7.A 8.C