1) Give the 1 field of science in which Galileo studied. a) Geology b) Astronomy c) Archaelogy 2) Which scientist discovered gravitational force and how an object's mass is affected by it? a) Galileo b) Copernicus c) Ptolemy d) Newton 3) Which one of these fields of science did Isaac Newton NOT study? a) Optics b) Gravitational Force c) Medicine d) Motion of Objects 4) What is the BASIC formula to calculate speed?  a) v=d/t b) s=d/t c) d=fx-ix 5) What is the definition of speed?  a) Speed is the ratio of an object's distance moved over time b) Speed is the ratio of final position to starting position. 6) What is the definition of velocity? a) Velocity is the ratio of the final position from the starting position. b) Velocity is speed with direction. 7) Study the position-time graph (A) and the velocity-time graph (B). Do the graphs represent the same information? a) YES, THE OBJECT IN GRAPH A MOVES AWAY FROM THE X AXIS AND IN b) NO, THE OBJECT IN GRAPH A MOVES WITH CONSTANT VELOCITY, WHILE THE OBJECT IN GRAPH B MOVES WITH INCREASING VELOCITY. c) YES, BOTH GRAPHS SHOW THAT THE OBJECT IS NOT MOVING 8) Study the position-time graph (A) and the velocity-time graph (B). Do the graphs represent the same information? a) YES, BOTH GRAPHS SHOW THAT THE OBJECT IS NOT MOVING b) NO, THE OBJECT IN GRAPH A MOVES WITH CONSTANT VELOCITY, WHILE THE OBJECT IN GRAPH B MOVES WITH INCREASING VELOCITY. 9) What is the displacement represented on this graph? a) 4 Seconds b) 4 Kilometers c) 8 Seconds d) 8 Kilometers 10) A car has a displacement of –140 miles. If east is taken as the positive direction, what is the displacement of the car? a) The car is north of its starting position. b) The car is west of its starting position. c) The car is south of its starting position. 11) A ship sails north for 2 hours, traveling a total of 15 miles. Then the ship turns south and travels 6 miles in an hour. If north is taken as the positive direction, what is the velocity of the ship? a) V = D/T 3 MPH b) V = D/T 30 MPH c) V = D/T 12 MPH 12) The code word for a retake on this activity is: a) Newton b) Not Newton

SCI 8B Unit 1 Exam

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