1. What is the difference between vector and scalar quantities? (1 marks) 2. Convert the following scientific notation to standard form. (3 marks) a) 5.4674 x 104 b) 6.35 x 10-4 c) -7.3 x 106 3. Indicate the number of significant figures in the number given. (5 marks) a) 72000 b) 3210.0 c) 531.05 d) 0.070 e) 3.510 x 2054. What is the difference between "Speed" and "Velocity"? (2 mark) 5. What is the difference between "Significant Figures" and "Scientific Notation"? (2 marks) 6. Evaluate the following and use the correct number of significant figures in your answer. (4 marks) a. 2.35 x 4.6 b. 4/3 (3.14159) (4.7)3 C. 33560001010X0.00 06 0012 24.5 d. 2301cm + 834.12cm + 9.0cm7. Do the following unit conversions. State the answer with correct units. (2 marks) a. 200 g into kg b. 34 km into meters 8. As difficult as it is to visualize the changes In velocity, a good understanding of acceleration is needed to master kinematics problems. Recognizing that acceleration can be positive, while velocity is positive (and visa) is definitely brain exercise. (4 marks) a) Object is speeding up (from still) In the positive direction. For example, a ball is placed on a slanted ramp. Velocity is select Acceleration Is select b) Object is speeding up (from still) In the negative direction. For example, a ball is placed on a ramp that is slanted towards the negative direction (eg. down to the left). Velocity Is soloct Acceleration is select c) Object is slowing down In the positive direction. For example. you push a ball up a slanted ramp. Velocity Is select Acceleration is select d) Object is slowing down in the negative direction. For example, you push a ball up a ramp that is slanted towards the negative direction (eg. down to the right). Velocity Is select Acceleration is select9. Review your results from question 10 to build general statements that are always true: (2 marks) a) Acceleration is always In the select direction of velocity if the object is slowing down. b) Acceleration is always In the select direction of velocity If the object is speeding up. 10. Provide a description of a sample situation for each of the graphs below (make sure to recognize each graph as d vs t. v vs t. or a vs t) (3 marks) 1 1. Fret Causes a change in motion. How can you Identify a change of motion by watching a speedometer In a car (which is driving forward)? (3 marks) a. If FNet = 0. then the speedometer changes select b. If FNet = small positive, then the speedometer select soloct C. If FNet= large negative, then the speedometer select select d. If the speedometer stays at 100 km/hr, then FNET = select