Fall Final
For the Fall Final, there will be four pages with five questions (1-5) on each page. There will be a total of 40 points possible, but I will make the score out of 32, so a "Perfect" score will be 8/10 for each page. This means that if you get a score higher than 32, you will be getting extra credit summative assessment points which is huge.
Here is a Mock Final for you: MockFallFinal.pdf
Page 1 - Speed and Acceleration
1. A baseball is going 35.0 m/s. What distance does it travel in 0.522 s? (18.3 m) <Video>
2. A car goes 45 m in 8.00 s. What is its velocity? (5.63 m/s) <Video>
3. Convert 13.0 m/s to feet/second (42.7 f/s) <Video>
4. A car going 12.0 m/s accelerates at 1.20 m/s/s for 3.2 s. What is its final velocity? (15.8 m/s) <Video>
5. A car going 24.0 m/s is going 17.0 m/s 11.0 seconds later. What was its acceleration? (-0.636 m/s/s) <Video>
Page 2 - Linear Kinematics and Free Fall
1. A moving giant lizard stops in 3.10 m in 1.20 s. What was its acceleration? (-4.31 m/s/s) <Video>
2. A car is going 26.0 m/s after traveling 145 m in 7.80 s. What was its initial velocity? (11.2 m/s) <Video>
3. A runner accelerates uniformly from 1.30 m/s to 4.70 m/s with an acceleration of 5.20 m/s/s. What was their displacement? (1.96 m) <Video>
4-5. An air rocket leaves the ground going straight up with a velocity and reaches a height of 37.0 m before coming back down.
Neglect air friction and use g = 9.8 m/s/s
4. What was its launch velocity? (26.9 m/s) <Video for 4 and 5>
5. What total time was it in the air? (5.50 s)
Page 3 - Projectile Motion
Ignore air friction, use the convention that down is negative, and use g = 9.8 m/s/s.
1-3: A ball is projected sideways from the top of a 12.0 m tall cliff. It lands having traveled a horizontal distance of 23.0 m.
1. What time is the ball in the air? (1.56 s) <Video for 1-3>
2. What horizontal velocity did it have? (14.7 m/s)
3. Draw a picture of its velocity of impact and express it as an angle and a magnitude. (21.2 m/s 46.2o below horiz.)
4-5: A ball is launched at 26.0 m/s at an angle of 65.0o above horizontal on a level field.
4. What time is it in the air? (4.81 s) <Video for 4 and 5>
5. What horizontal distance does it travel before striking the ground again (52.8 m)
Page 4 - Dynamics
1. A 13.0 kg mass accelerates along a frictionless track covering 45.0 m of distance in 2.30 s from rest. What net force was acting on the mass? (221.2 N) <Video>
2-3: A 2.50 kg mass hangs on a cord.
Use the convention that up is positive.
2. If the tension in the cord is 12.0 N, what is the acceleration of the mass? (-5.00 m/s/s) <Video>
3. If the mass is accelerating downwards at 4.20 m/s/s, what is the tension in the cord? (14.0 N) <Video>
4-5: There is a coefficient of kinetic friction of 0.150 between a 8.00 kg block of wood and the level floor.
Use the convention that right is positive.
4. If there is a force of 9.20 N to the right, and the block is sliding to the right, what is the acceleration? Is it speeding up or slowing down? (Answer both questions) (-0.320 m/s/s, decelerating, or slowing down) <Video>
5. What in what direction force is needed to make it slide and accelerate to the right at 4.90 m/s/s? (Answer both questions) (51.0 N to the right) <Video>
Here is what is on the final: (The links lead you to help pages)
Page 1 - Speed and Acceleration
1-3: 2.1 - Speed
4-5: 2.2 - Acceleration
Page 2 - Linear Kinematics and Free Fall
1-3: 2.3 - Kinematics More
4-5: 2.4 Free Fall Kinematics More
Page 3 - Projectile Motion
1-3: 3.2 - Cliff Problems More
4-5: 3.3 - Arc Problems
Page 4 - Dynamics
2-3: 4.2 - Vertical Acceleration
4-5: 4.3 - Friction