Do Now (10/11): A bullet leaves a rifle with a muzzle velocity of 521 m/s. While accelerating through the barrel of the rifle, the bullet moves a distance of m. Determine the acceleration of the bullet (assume a uniform acceleration).

Ms. Timson’s Physics Review to Conquer Kinematics

Rules of the Game There will be tribes, as divided by the teacher For each problem which appears on the slide, the tribe will be able to work together to vote on one answer given only the time which will be written on the slide. Tribes cast their answer using their voting cards only in the time allowed. Each team with a correct answer is allowed to cast one vote to remove another tribe from the island. The teacher will have each tribe cast their vote simultaneously by writing the color of the tribe they are voting for on their white board. The teacher will then remove tribes from the island. The teacher will track which tribes are in and which tribes are out of the game with signs on the board. If a tribe is voted out, they can reenter the game by answering the next question correctly to reenter. They will NOT receive a vote for that question but must wait until the next question. Winning tribes will be those still on the island at the end of the game. ***The teacher will be the final judge of any conflicts or confusions – and remember, be respectful and be honest!

1. A dog walks 15 m North, 15 m East, and 15 m South. What is his distance and displacement? a.distance=15 m, displacement=0m b.distance=45 m, displacement=15m W c.distance=45 m, displacement= 15m E d.distance=15 m, displacement=30m 30 seconds

2. The acceleration due to gravity is approximately: A. 9.8 B. 9.8 m/s 2 C m/s 2 D m/s 2 if up is positive 10 seconds

3. An airplane starts from rest and accelerates at a constant 3.00 m/sec 2 for 30.0 seconds before leaving the ground at the end of the runway. What kinematics variables are defined in this problem? A. a, v, d B. a, v, t C. a, t, v i D. a, v f 30 seconds

4. An indy-500 race car’s velocity increases from 4 m/s to 36 m/s over an interval lasting 4 s. What is the car’s average acceleration? A. 9 m/s 2 B. 1 m/s 2 C. 4 m/s 2 D. 8 m/s 2 1 minute

5. An indy-500 race car’s velocity increases from 4 m/s to 36 m/s over an interval lasting 4 s. What is the car’s displacement? A. 80 m B. 40 m C. 20 m D. 120 m 1.5 minutes

6. What is the speed of a rocket that travels 9000 meters in 12 seconds? A m/s B. 750 m/s C m/s D. None of the above 45 seconds

7. If a Ferrari, with an initial velocity of 10 m/s, accelerates at a rate of 50 m/s 2 for 3 seconds, what will its final velocity be? A. 150 m/s B. 180 m/s C. 140 m/s D. 160 m/s 1.5 minutes

8. A feather is dropped on the moon from a height of 1.4 meters. The acceleration of gravity on the moon is 1.67 m/s 2. Determine the time for the feather to fall to the surface of the moon. A..915 s B s C s D s 1.5 minutes

9. A kangaroo is capable of jumping to a height of 2.62 m. Determine the takeoff speed of the kangaroo. A m/s B m/s C m/s D m/s 2 minutes

10. The slope of a velocity –time graph is equal to: A. The distance B. The position C. The acceleration D. The velocity 20 seconds

11. The slope of a position–time graph is equal to: A. The distance B. The position C. The acceleration D. The velocity 20 seconds

An airplane while in flight, accelerates from a velocity of 21.0 m/sec at a constant rate of 3.00 m/sec 2 over a total of 535 meters. What is the final velocity? What is the displacement? 2 minutes

The area under the curve of a velocity – time graph is equal to: A. The distance covered B. The position C. The acceleration D. The velocity 20 seconds

A bullet leaves a rifle with a muzzle velocity of 521 m/s. While accelerating through the barrel of the rifle, the bullet moves a distance of m. Determine the acceleration of the bullet (assume a uniform acceleration). 2 minutes

Congratulations! Good luck tomorrow! I know you can conquer your test