1-D Kinematics Review Which of the following is a physical quantity that has a magnitude but no direction? vector scalar resultant frame of reference 0% nt re fe re nc e 0% fra m e of re su lt a lar 0% sc a or 0% ve ct 1. 2. 3. 4. Which of the following is an example of a vector quantity? distance temperature volume acceleration speed mass 0% m as s tio ac ce le ra 0% sp ee d 0% n 0% um e 0% vo l ce te m pe ra tu re 0% di st an 1. 2. 3. 4. 5. 6. The slope of a velocity time graph represents: Displacement Acceleration Distance Speed Time m e 0% Ti 0% Sp ee d an c e 0% Di st io n 0% el er at Ac c lac em en t 0% Di sp 1. 2. 3. 4. 5. A position time graph is linear with a positive slope. The slope of the corresponding velocity time graph 1. Positive will be: 0% be ng i d. .. ng 0% Un a bl e to Ch a tiv Ne ga 0% Ze ro 0% e 0% ve Negative Zero Changing Unable to be determined Po sit i 2. 3. 4. 5. A velocity time graph is linear with a positive slope. The slope of the corresponding position time graph 1. Positive will be: 0% be ng i d. .. ng 0% Un a bl e to Ch a tiv Ne ga 0% Ze ro 0% e 0% ve Negative Zero Changing Unable to be determined Po sit i 2. 3. 4. 5. Finding the slope between the first and last points on a position time graph will tell you the: ta n la cc e. .. 0% Fr ee fa l Av er a ge Ve lo ci. io n el er at Ac c 0% eo us .. . 0% .. 0% In st an 1. Acceleration 2. Average Velocity 3. Instantaneous Velocity 4. Free fall acceleration To find the instantaneous velocity of a car that travelled 40cm using the photogates, you must do the following? 0.4m/tB 0.01m/tB 0.4m/tAB 0.01m/tAB /t 0. 01 m AB /t 0. 4m 0% AB 0% B 0% 0. 01 m /t /t B 0% 0. 4m 1. 2. 3. 4. A cannonball is shot into the air. What is the acceleration (in m/s2) when the cannonball is at its highest point? 1. 0 0% 0% No t en ou gh in f.. . -9 .8 0% 9. 8 0% 0 2. 9.8 3. -9.8 4. Not enough information A diver steps off a 10m diving board. What is the initial velocity (in m/s)? 1. 0 0% 0% No t en ou gh in f.. . -9 .8 0% 9. 8 0% 0 2. 9.8 3. -9.8 4. Not enough information 0% 0% -1 0 0% 10 0% -9 .8 0% 9. 8 9.8 -9.8 10 -10 0 1. 2. 3. 4. 5. A diver steps off a 10m diving board. What is the diver’s displacement (in m) once she strikes the water? 0 A grasshopper leaps 0.5 m in the air and returns to the ground. What is the insect’s vertical 1. 0 displacement (in m)? 0% 0% -.5 en ou gh in f.. . 0% No t 0% .5 0% -9 .8 0% 1 1 -9.8 0.5 -0.5 Not enough info 0 2. 3. 4. 5. 6. A grasshopper leaps in the air onto a ledge for a total time of 2 seconds. What is the insect’s final velocity (in m/s)? 0% 0% -.5 en ou gh in f.. . 0% No t 0% .5 0% -9 .8 0% 9. 8 0 9.8 -9.8 0.5 -0.5 Not enough info 0 1. 2. 3. 4. 5. 6. A grasshopper leaps in the air at +0.5m/s and returns to the ground. What is the insect’s final velocity (in m/s)? 1. 0 0% 0% -.5 en ou gh in f.. . 0% No t 0% .5 0% -9 .8 0% 9. 8 9.8 -9.8 0.5 -0.5 Not enough info 0 2. 3. 4. 5. 6. A grasshopper leaps in the air at +0.5m/s and returns to the ground. What is the insect’s acceleration (in 2)? m/s 1. 0 0% in fo -.5 0% en ou gh 0% No t 0% .5 0% -9 .8 0% 9. 8 9.8 -9.8 0.5 -0.5 Not enough info 0 2. 3. 4. 5. 6. A car speeds up from -10 m/s to -30 m/s. Describe the acceleration. Positive Negative Zero Unable to be determined 0% 0% Un a bl e to be d. .. Ze ro tiv e 0% Ne ga ve 0% Po sit i 1. 2. 3. 4. A cheetah slows down from -10 m/s to -5 m/s south. Describe the acceleration. Positive Negative Zero Unable to be determined 0% 0% Un a bl e to be d. .. Ze ro tiv e 0% Ne ga ve 0% Po sit i 1. 2. 3. 4. A minivan slows down from 85 mi/hr to 65 mi/hr when the driver spots a police officer tracking her speed. Describe her acceleration. 1. Positive 0% 0% d. .. be to bl e Un a tiv e 0% Ne ga Po sit i ve 0% Ze ro 2. Negative 3. Zero 4. Unable to be determined A basketball is released from rest. When the ball hits the ground it is moving at a speed of 8m/s. Describe the acceleration. 1. Positive 0% 0% d. .. be to bl e Un a tiv e 0% Ne ga Po sit i ve 0% Ze ro 2. Negative 3. Zero 4. Unable to be determined