50:50 Who Wants to Be a Physicist? 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved When a car’s velocity is positive and its acceleration is negative, what is happening to the car’s motion? 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 A: The car speeds up. B: The car slows down. C: The car travels logy at constant speed. D: The car remains at rest. © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved Calculate the velocity of a boat (in m/s) that covers a distance of 36-km in a time of 1-hr. 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A: 10,000-m/s B: 1,000-m/s C: 100-m/s D: 10-m/s $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved The length of a force vector represents the 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 A: magnitude or strength of the force B: direction of the force C: cause of the force D: type of force © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved A ball is whirled on a string, then the string breaks. What causes the ball to move off in a straight line? 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 A: Inertia B: Centripetal force C: Centrifugal force D: Centripetal acceleration © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved How much time would it take the superhero Wonder Woman to reach a speed of 100-m/s if she starts at rest and can accelerate at 50-m/s^2? 50:50 A: 25-s B: 75-s C: 2-s D: 0.5-s 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved the $1,000 Milestone! © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved Two billiard balls collide. Identify the type of collision. 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A: elastic B: perfectly elastic C: inelastic D: perfectly inelastic $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved If both the mass and the velocity of a ball were tripled, the kinetic energy of the ball would increase by a factor of 50:50 A: 3 B: 6 C: 9 D: 27 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved A 75 kg person walking around a corner bumped into an 80 kg person who was running around the same corner in the opposite direction. The momentum of the 80 kg person 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A: decreased B: increased C: remained the same D: was conserved $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved Which of the following is not an example of potential energy? 50:50 A: A stretched rubber band. C: A speeding car. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 B: A basketball player at the peak of his jump. D: A boulder on top of a cliff. © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved A worker does 25J of work lifting a bucket, then sets the bucket back down in the same place. What is the total net work done on the bucket? 50:50 A: 50 J B: 25 J C: -25J D: 0 J 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved the $32,000 Milestone! © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved A 3.00 kg toy falls from a height of 1.00 m. What will the kinetic energy of the toy be just before the toy hits the ground? (assume no air resistance and that g = 10 m/s^2) 50:50 A: 10 J B: 30 J C: 40 J D: 60 J 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved The gravitational force between two masses is 36 N. What is the gravitational force if the distance between them is tripled? 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A: 18 N B: 9.0 N C: 4.0 N D: 27 N $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved A ball with a momentum of 4.0 kg x m/s hits a wall and bounces straight back without losing any kinetic energy. What is the change in the ball’s momentum? 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 A: 0.0 kg x m/s B: 8.0 kg x m/s C: -4.0 kg x m/s D: -8.0 kg x m/s © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved The radius of the Earth 6,370,000 m. Express this measurement in km in scientific notation. 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 A: 6.37 x 10^3 km B: 6.37 x 10^6 km C: 63.7 x 10^4 km D: 637 x 10^3 km © Mark E. Damon - All Rights Reserved 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 © Mark E. Damon - All Rights Reserved A billiard ball collides with a stationary (at rest) identical billiard ball in an elastic headon collision. After the collision, which of the following is true of the first ball? 50:50 A: It maintains its initial velocity. C: It has one-half its initial velocity. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 B: It comes to rest. D: It moves in the opposite direction. © Mark E. Damon - All Rights Reserved YOU WIN $1 MILLION DOLLARS!
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