James Madison High School How Are Concave and Convex Lenses Different Questions

Physical Science Part 2 Final Exam
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1. A race car drives one lap around a race track that is 500 meters in length. (Chapter 2 – Pages 4546)
a. What is the driver’s displacement at the end of the lap?
b. How is his displacement different from the distance traveled?
2. How far does a car travel in 90 seconds if it is traveling at a speed of 55 m/s? Show the
appropriate equation from your textbook and show your work with units in order to receive credit.
(Chapter 2 – Pages 46-47)
3. Two cars, both with a mass of 500 kg, are traveling down a road. The first car has a velocity of
65 m/s east and the second car has a velocity of 85 m/s west. (Chapter 2 – Pages 54-55)
a. Calculate the momentum of both cars showing the appropriate equation from your
textbook and your work with units in order to receive credit.
b. Which car has the larger momentum? Explain how you know.
4. An airplane traveling at 60 m/s comes to a stop in 10 seconds. Calculate the airplane’s
acceleration. Show the appropriate formula and show your work with units in order to receive
credit. (Chapter 2 – Pages 57-58)
5. An individual has a weight of 735 Newtons. What is the individual’s mass? Show the
appropriate equation from your book and show your work with the units in order to receive credit.
(Chapter 3 – Pages 78-79)
6. In terms of Newton’s First Law of Motion, explain why it is important to wear a seatbelt while
riding in a car. (Chapter 3 – Page 86)
7. If you kick a tennis ball with 50 N of force and then kick a soccer ball with 50 N of force, explain
the difference in their motion according to Newton’s Second Law. (Chapter 3 – Pages 81-82)
8. Describe how the velocity and acceleration of a skydiver changes as she falls from the plane back
to the ground. (Chapter 3 – Pages 88-89)
9. A child is swinging on swing. Describe what happens to both the kinetic energy and potential
energy of the child as she swings up and down. (Chapter 4 – Pages 123)
10. Driving to work one morning, you get a flat tire. When using the car jack, you apply 120 N of
force to the jack and the jack in turn applies 2000 N of force to lift the car up. What is the
mechanical advantage of the jack? (Chapter 4 – Page 111)
11. A temperature of a 50 kg block increases by 15°C when 337,500 J of thermal energy are added to
the block. (Chapter 5 – Pages 141-142)
a. What is the specific heat of the object? Show the appropriate equation from your book
and show your work with units.
b. What is the block made of? Use the chart on page 141.
c. Is this block a good material for insulators or conductors?
12. Explain why gases make better thermal insulators than solids or liquids. Give one example from
the textbook of a thermal insulator that can help keep you warm on a cold day. (Chapter 5 – Pages
147)
13. Several days after a snowfall, the roofs of some homes on your street have almost no snow on
them, while the roofs on other homes are still snow covered. Assuming they have all received the
same amount of sunlight, give one reason for this observation related to thermal energy and
insulation.
14. If you purchased a string of lights, how could you determine if the lights were wired in series or
parallel? (Chapter 6 – Pages 185-186)
15. What happens to the current in a device if the resistance is decreased but the voltage stays the
same? (Chapter 6 – Pages 181-182)
16. You measure the voltage difference of a circuit to be 15 V and the resistance to be 675 Ω. What
is the current in the circuit? Show the appropriate equation from your book and show your work
with units. (Chapter 6 – Page 182)
17. Explain why a magnet from your refrigerator could not be used to lift something as heavy as a
car. (Chapter 7 – Pages 202-203)
18. Can a magnet ever have a single pole? Explain your answer. (Chapter 7 – Page 208)
19. What happens to the wavelength of a wave if the frequency is increased? (Chapter 9 – Pages 280281)
20. An ocean wave has a wavelength of 10 m and a frequency of 4.0 Hz. What is the velocity of the
wave? Show the appropriate equation from your book and show your work with units. (Chapter 9
– Page 282)
21. As you sit outside, the sound of a siren becomes lower in pitch. Is the emergency vehicle moving
away from or towards you? Explain how you know. (Chapter 10 – Page 315-316)
22. Why are two astronauts in space unable to hear one another? (Chapter 10 – Page 307)
23. Explain in at least 3 sentences how electromagnetic waves form. (Chapter 11 – Page 338-339)
24. Using the chart on page 345 in your textbook, what are the three types of electromagnetic wave
with wavelengths shorter than those of visible light. Give an example of each. (Chapter 11 –
Pages 345-351)
25. Explain why a leaf usually appears to be green, but a rose typically appears red. (Chapter 12 –
Page 373)
26. What is the difference in light that is refracted compared to light that is reflected? Think in terms
of speed of light as well as what happens to light waves when they interact with a medium.
(Chapter 12 – Pages 369-370)
27. How are concave and convex lenses different? (Chapter 13 – Page 408-410)
28. What type of mirror is used in rearview mirrors in cars? Why is it important that these mirrors
have the warning, “Objects in mirror are closer than they appear.”? (Chapter 13 – Page 405)