Physical Science Exam Review
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- Bu səhifədəki naviqasiya:
- GOAL 2: Build an understanding of thermal energy.
| Name: __________________ Physical Science Doc. # _______ Date: ______________ Mr. Barry Class Period _____ Physical Science Exam Review GOAL 1: Construct an understanding of mechanics. Vocabulary: speed, average velocity, instantaneous velocity, acceleration, force, net force, inertia, work, power, energy, potential energy, kinetic energy, centripetal force, centripetal acceleration, momentum 1.01—Analyze uniform and accelerated motion. Glencoe Physical Science: Chapter 2 _____ 1. A car going around a curve is said to be accelerating because:
_____ 2. When acceleration is negative, what happens?
_____ 3. At the beginning of a race, Sam starts from rest and achieves a velocity of 5.0 m/s in just 4.0 seconds. What is his acceleration? A) 0.80 m/s2
_____ 4. Vanessa drives 30 km on the highway at an average speed of 90 km/hr. How long does it take her?
_____ 5. If you want to calculate the acceleration of a car, you should ___ the change in velocity of the car by the time interval. A) multiply B) increase C) decrease D) divide _____ 6. Which of the following is an example of a projectile?
_____ 7. What is the shape of the path that a projectile follows?
_____ 8. If you threw a baseball forward at a speed of 10 m/s and dropped another baseball from the same height at the same time, which would hit the ground first?
_____ 9. What does velocity tell you that speed does not tell you?
1.02—Analyze forces and their relationship to motion, Newton’s three laws of motion. Glencoe Physical Science: Chapter 3 _____ 10. A person’s mass and weight are both measured on Earth and on the moon. Which is the same at both locations? A) mass only B) weight only C) both mass and weight D) both are different at two locations _____ 11. A car accelerates at a rate of 3.0 m/s2 after stopping at a red light. If the mass of the car is 3000 kg, what force does its engine exert? A) 1000 N B) 0.001 N C) 9000 N
_____ 13. If you drop a sheet of paper and a pencil at the same time, the pencil will hit the ground first even though they experience the same acceleration. Why is this true?
_____ 14. As an object falls, its downward velocity:
_____ 15. If the same force is applied to the following objects, which will accelerate the most?
_____ 16. A 1.0 kg ball and a 5.0 kg ball are dropped at the same instant. Which one has more inertia?
_____ 17. What do we call the unbalanced force that causes acceleration toward the center of a circle?
_____ 18. Why does it hurt more to be hit by a bullet that is shot from a gun than to be hit by a bullet that is thrown at you?
_____ 19. What causes acceleration? A) a balanced force B) an unbalanced force C) inertia D) mass E) velocity _____ 20. If a 1000 kg car is to accelerate at a rate of 3.0 m/s2, what force will its engine need to apply? A) 0.003 N B) 333 N C) 3000 N _____ 21. A force of 10 N accelerates a ball at the rate of 0.5 m/s2. What is the mass of the ball? A) 5.0 kg B) 0.005 kg C) 20 kg _____ 22. If an object has a mass of 100 kg , what is its weight? A) 100 N B) 10 N C) 980 N _____ 23. A 5000 kg airplane accelerates down the runway from rest achieving a speed of 130 m/s in 20 seconds. What is its acceleration? A) 6.5 m/s2 B) 1.92 m/s2 C) 2600 m/s2 D) 13,000,000 m/s2 _____ 24. When two people on skates try to play tug-of-war, they A) Newton’s 1st law of motion pull themselves as hard as they pull each other. B) Newton’s 2nd law of motion _____ 25. When you let go of a balloon C) Newton’s 3rd law of motion that is not tied, it flies across the room because as it pushes the air out, the air pushes it forward. _____ 26. It takes more force to stop a moving car than a bicycle moving at the same speed.
keep moving at a constant speed in a straight line until it hits something.
A) inertia B) friction C) gravity D) weight E) mass
Chapters 4 & 5 _____ 29. What is the kinetic energy of a 65 kg student running at 4.0 m/s? A) 16.25 J B) 260 J C) 130 J D) 520 J _____ 30. Marc pushes a box with a force of 55 N for 12 meters across the floor. How much work does he do?
A) 4.58 J B) 660 J C) 0.22 J D) it depends on how fast he is pushing _____ 31. When Matt dives off the diving board and heads toward the water, what happens to his potential energy?
_____ 32. Who does the most work in the following situations?
_____ 33. One joule is the same as one: A) milliliter B) dm3 C) newton meter
form to another
Consider the following picture of a ball swinging on a string:  
 C
A
B
_____ 36. At which position does the ball have the greatest kinetic energy?
_____ 37. Which of the following has the greatest potential energy?
_____ 38. Jessica pushes on a car stuck in a ditch with a force of 1000 N for 15 minutes. The car remains stuck. How much work did Lucas do?
_____ 39. A 250 g rock flies through the air at a speed of 10.0 m/s. What is its kinetic energy? A) 2.5 J B) 25 J C) 2500 J D) 25 000 J
vaporization, evaporation, sublimation, temperature, heat of fusion, heat of vaporization, entropy, conduction, convection, radiation, friction, efficiency 2.01—Assess molecular motion as it relates to temperature and phase changes. --know effects of gaining or losing heat, such as contraction and expansion or rising and falling temperature or change of phase --be able to read a phase change graph (like the lab where we melted ice and then heated the water) --be able to describe or recognize the motion of molecules as heat is gained or lost and to describe the motion of molecules of a solid, a liquid and a gas Glencoe Physical Science: Chapter 6 _____ 40. A measure of the average kinetic energy that particles of a material have is called: A) temperature B) heat C) thermal energy D) conduction _____ 41. The type of thermal energy transfer that can only occur in fluids is: A) insulation B) conduction C) convection D) radiation _____ 42. Which of the following is true when a liquid changes to a gas?
43.If 3800 joules of thermal energy are added to 100 g of copper, by how much will the temperature of the copper change? The specific heat of copper is 0.380 kJ/kg.K.
44.A 1.00 kg block of iron is heated from 22oC to 77oC. The specific heat of iron is 0.450 kJ/kg.K. What is the change in internal energy of the block?
4. 250 kg of glass are heated from 35oC to 45oC using 2100 kJ of thermal energy. What is the specific heat of glass?
_____ 46. Which of the following would take the most heat to raise its temperature from 300 K to 325 K?
_____ 47. Which of the following can result from thermal pollution?
_____ 48. Which of the following has the most thermal energy?
_____ 49. How much heat does it take to melt 100 grams of lead at its melting point? A) 328 J B) 1740 J C) 2500 J D) 32 800 J
A) 79 J B) 3950 J C) 42 750 J D) 85 500 J _____ 51. Convert 70oC to Kelvins. A) 70 K B) 140 K C) 210 K D) 343 K _____ 52. Which of the following is absolute zero? A) 0oC B) 0oF C) 273 K D) 0 K _____ 53. Changing from a solid to a liquid or from a liquid to a gas requires: A) specific heat B) volume C) energy D) money _____ 54. The substance that has the most energy is A) tap water B) ice C) ice water D) steam _____ 55. Which of the following describes the particles of a liquid?
_____ 56. Which of the following describes the particles of a solid?
_____ 57. Particles of which state of matter have the most kinetic energy? A) solids B) liquids C) gases
energy, in a closed system; the First Law of Thermodynamics Glencoe Physical Science: Chapter 6 _____ 58. A ________ changes heat energy into mechanical energy or work. A) heat engine B) radiator C) combustion _____ 59. Which of the following statements about a heat pump is true?
in the winter, it moves heat from outside the house to inside.
in the winter, it burns fuel.
in the winter, it moves cold from inside the house to outside. _____ 60. What unbalanced forces can cause some of the kinetic energy of a person swinging on a playground swing to change into thermal energy?
2.03—Analyze the second law of thermodynamics Glencoe Physical Science: Chapter 6 _____ 61. In what direction does heat flow?
_____ 62. A ratio of the work output of a machine to the work input of a machine is called:
Kataloq: file -> view view -> Bilgisayar Destekli Öğretim view -> Duygusal taciz view -> Novel perwatakan Perlukisan dan perkembangan watak. Contoh : Rentong Novel psikologi view -> Waktu sesudah itu othman hj. Zainuddin view -> Jake Schechter 0/04/10 New Visions Education English Essay # Sister’s Keeper view -> Kübler-Ross Stages of Grief in William Shakespeare’s Twelfth Night view -> Splošna psihopatologija Robert Oravecz Yüklə 158,49 Kb. Dostları ilə paylaş:
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