IB Physics 2 Final Review Student Self-AssessmentMove the check mark to the appropriate box. Review what’s needed. This will not be graded, but the final grade of any student who submits a

complete review before the final exam and has a semester 2 grade within 1% of the next grade up may be rounded up.

Relax, focus on what's conserved (mass, momentum, charge, energy), and you'll be fine

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IB Physics 2 Final Review Student Self-AssessmentMove the check mark to the appropriate box. Review what’s needed. This will not be graded, but the final grade of any student who submits a

complete review before the final exam and has a semester 2 grade within 1% of the next grade up may be rounded up.

Relax, focus on what's conserved (mass, momentum, charge, energy), and you'll be fine

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IB Physics 2 Final Review Student Self-AssessmentMove the check mark to the appropriate box. Review what’s needed. This will not be graded, but the final grade of any student who submits a

complete review before the final exam and has a semester 2 grade within 1% of the next grade up may be rounded up.

1. A ball is fired by a cannon from the top of a cliff as shown in the figure below. Which of the paths would the cannonball most closely follow?

2. Describe the the motion of the projectile (velocity and acceleration) on both x and y directions at three points: O, when the projectile is released; B, at the highest point (apex); C, when is about to hit the ground

3. Two metal balls one weighs twice as much as the other (m1=2m2). The balls are launched horizontally with the same horizontal velocity m2 from the2nd and m1 from the 5th story of a building at the same time.

a. Draw a sketch of the problem.

b. Compare the landing time and the landing horizontal distances.4. The two metal balls of the previous problem roll off a horizontal table with the same speed.

a. Draw a sketch of the problem.

b. Compare the landing time and the landing horizontal distances.5. Two metal balls having the same mass are launched horizontally 5th story of a building at the same time. One ball has a

horizontal velocity that is twice the horizontal velocity of the other ball.a. Draw a sketch of the problem.

b. Compare the landing time and the landing horizontal distances.Relax, focus on what's conserved (mass, momentum, charge, energy), and you'll be fine

IB Physics 2 Final Review Student Self-AssessmentMove the check mark to the appropriate box. Review what’s needed. This will not be graded, but the final grade of any student who submits a

complete review before the final exam and has a semester 2 grade within 1% of the next grade up may be rounded up.

6. A heavy ball is attached to a string and swung in a circular path in a horizontal plane as illustrated in the diagram at right. At the point indicated in the diagram, the string suddenly breaks at the ball. If

these events were observed from directly above, indicate the path of the ball after the string breaks.

7. The diagram at left depicts a semicircular channel that has been securely attached, in a horizontal plane, to a table top. A ball enters the channel at "1" and exits at "2". Which of the path representations would most nearly correspond to the path of the ball as it exits the channel at "2" and rolls across the table top?

8. A comet is in an elliptical orbit about a star. What happens to its linear and angular velocity as it approaches the star?

9. Explain which force produces the greatest torque? What is the sign of the torque? Where is the axis of rotation?

10. If you exert a perpendicular force of 15 N at a distance (lever arm) of 0.75 m from the hinge of the door, how big is the torque created? Draw a diagram and explain if the torque is positive or negative. If the force and lever arm is the same, what do you need to do to reduce the torque? Show it on a diagram.

Relax, focus on what's conserved (mass, momentum, charge, energy), and you'll be fine

IB Physics 2 Final Review Student Self-AssessmentMove the check mark to the appropriate box. Review what’s needed. This will not be graded, but the final grade of any student who submits a

complete review before the final exam and has a semester 2 grade within 1% of the next grade up may be rounded up.

11.A seesaw is supported at the center. A 40 kg boy sits at the left, 4 m away from the center. A 30 kg girl sits on the right, at 5 m away from the center. Draw the diagram. Is the seesaw balanced? How do you know? If it is not, how it is going to rotate?

12. (Image at right) Two children are sitting on a seesaw of a uniform board with a fulcrum on its center of mass. One child (m=30kg) is 2.0m to the left of the fulcrum. Where should the second child (m=50kg) sit so that they are in equilibrium?

13.A 20 kg child wishes to balance on a seesaw with a child of 35 kg. If the smaller child sits 3.2 m from the seesaw’s pivot, where does the large kid need to sit?

14.A planet has a mass (Mplanet) 3 times that of earth and the radius (rplanet) is 2 times that of earth. Write the gravitational field strength of that planet (gplanet) in terms of the mass and radius of the earth. If the gravitational field strength of the earth is g, write gplanet is terms of g. Repeat the problem when the mass of the planet (Mplanet) is 10 times that of earth and the radius (rplanet) is half that of earth.

15.State Newton’s first law of motion (Law of inertia). Give at least three examples from real life, with at least one involving circular motion, that can be explained using this law.

Relax, focus on what's conserved (mass, momentum, charge, energy), and you'll be fine

IB Physics 2 Final Review Student Self-AssessmentMove the check mark to the appropriate box. Review what’s needed. This will not be graded, but the final grade of any student who submits a

complete review before the final exam and has a semester 2 grade within 1% of the next grade up may be rounded up.

16.Which of the three objects reaches the bottom of the ramp first? Explain in terms of moment of inertia and Newton’s second law for rotating solids.

17.Describe what happens with the motion of each person in the following scenarios as they move their arms. What conservation principle can explain the motion?

Relax, focus on what's conserved (mass, momentum, charge, energy), and you'll be fine

IB Physics 2 Final Review Student Self-AssessmentMove the check mark to the appropriate box. Review what’s needed. This will not be graded, but the final grade of any student who submits a

complete review before the final exam and has a semester 2 grade within 1% of the next grade up may be rounded up.

Use this wave to answer questions 18-21.

18.Find the frequency for the previous wave. Each time interval (vertical line) is 4 seconds.19.Find the period of the previous wave.20.Find the amplitude of the previous wave.21.Find the wavelength of the wave if the speed is 300 m/s.

22. If the following are representations of a sound wave, which of the following will be louder? Why?

23.What wave phenomena do the following pictures represent? Describe each phenomenon.

Relax, focus on what's conserved (mass, momentum, charge, energy), and you'll be fine

IB Physics 2 Final Review Student Self-AssessmentMove the check mark to the appropriate box. Review what’s needed. This will not be graded, but the final grade of any student who submits a

complete review before the final exam and has a semester 2 grade within 1% of the next grade up may be rounded up.

a. b. c.

d. e. f.

24.Unpolarized light is shone through two identical polarizers whose axes are parallel as shown in the diagram below. What is the

ratio of the intensity of the transmitted light to the incident (II 0

)?

Relax, focus on what's conserved (mass, momentum, charge, energy), and you'll be fine

IB Physics 2 Final Review Student Self-AssessmentMove the check mark to the appropriate box. Review what’s needed. This will not be graded, but the final grade of any student who submits a

complete review before the final exam and has a semester 2 grade within 1% of the next grade up may be rounded up.

25.A standing wave of fundamental frequency f is established in a pipe with one open and one closed end. Sketch what this looks like. What is the frequency of the second harmonic?

26.Describe how the speed, wavelength, and frequency of a wave change when entering a medium with a larger refractive index.

27.How does the frequency change for a note that is two octaves higher?

28.Determine the wavelength of the longitudinal wave at right.

29.Make energy bar diagrams for each position of the two scenarios below.

Relax, focus on what's conserved (mass, momentum, charge, energy), and you'll be fine

IB Physics 2 Final Review Student Self-AssessmentMove the check mark to the appropriate box. Review what’s needed. This will not be graded, but the final grade of any student who submits a

complete review before the final exam and has a semester 2 grade within 1% of the next grade up may be rounded up.

30.Two students sit on the carts facing each other. A big heavy “medicine” ball is given to one of them by the instructor. Students begin throwing the ball to each other. Very soon, they find themselves far apart compared to their initial position. WHY?!

31. A car and truck collide head on. Compare...a. The force exerted by the car on the truck to the force exerted by the truck on the car.b. The change in momentum of eachc. The change in velocity of each

Relax, focus on what's conserved (mass, momentum, charge, energy), and you'll be fine

IB Physics 2 Final Review Student Self-AssessmentMove the check mark to the appropriate box. Review what’s needed. This will not be graded, but the final grade of any student who submits a

complete review before the final exam and has a semester 2 grade within 1% of the next grade up may be rounded up.

32.The pulley in the following picture has a moment of inertia of 20 kg m2. The radius is .5 meters. The applied force W is 40 N.

a. Calculate the torque of the force.b. Using Newton’s second law for rotational motion, calculate the angular acceleration of the

pulley.c. What happens with the acceleration of the pulley if the force triples?

33.A toy consists of a piece of plastic attached to a spring as in the figure below. The spring is compressed 2.0 cm and the toy is released. If the mass of the toy is 100 g and it rises to a maximum height of 60 cm, estimate the force constant of the spring. Make the energy diagrams for the following instances:

a. Before the toy is released; b. the toy is in the air, just being released;c. the toy is in the air; the toy is at the highest point

34. A 3.0-kg mass starts from rest and slides a distance d down a frictionless 30o incline, where it contacts an unstressed spring of negligible mass as in the diagram at right. The mass slides an additional 0.20 m as it is brought momentarily to rest by compressing the spring (k = 400 N/m). Make the energy bars for the following instances:

a. the mass is at the top of the inlineb. the mass touches the spring on the way downc. the mass stopped after compressing the spring for an additional 0.20 md. the mass is just released by the spring, going up

35. A 2 kg mass and 20 kg mass have the same non-zero momentum. What is the ratio of their kinetic energies?

36.Describe a situation that utilizes each of the energy storage modes described below:Relax, focus on what's conserved (mass, momentum, charge, energy), and you'll be fine

IB Physics 2 Final Review Student Self-AssessmentMove the check mark to the appropriate box. Review what’s needed. This will not be graded, but the final grade of any student who submits a

complete review before the final exam and has a semester 2 grade within 1% of the next grade up may be rounded up.

a. Kinetic - b. Gravitational Potential - c. Elastic Potential -

Relax, focus on what's conserved (mass, momentum, charge, energy), and you'll be fine