Solutions for PHYSICAL SCIENCE (LCPO)
Problem 1AC:
1. A straight-line distance covered during a certain amount of time describes an object’s
a....Problem 2AC:
2. How fast an object is moving in a particular direction is described by
a. speed.
b. velocity.
c....Problem 3AC:
3. Acceleration occurs when an object undergoes _
a. a speed increase.
b. a speed decrease.
c. a...Problem 5AC:
5. A car moving at 60 km/h comes to a stop in 10 s when the driver slams on the brakes. In this...Problem 6AC:
6. According to Galileo, an object moving without opposing friction or other opposing forces will...Problem 7AC:
7. In free fall, an object is seen to have a (an) _
a. constant velocity.
b. constant...Problem 8AC:
8. A tennis ball is hit, causing it to move upward from the racket at some angle to the horizon...Problem 9AC:
9. A quantity of 5 m/s2 is a measure of _
a. metric area.
b. acceleration.
c. speed.
d. velocity.
Problem 10AC:
10. An automobile has how many different devices that can cause it to undergo acceleration?
a....Problem 11AC:
11. Ignoring air resistance, an object falling toward the surface of Earth has a velocity that is
a....Problem 12AC:
12. Ignoring air resistance, an object falling near the surface of Earth has an acceleration that...Problem 13AC:
13. Two objects are released from the same height at the same time, and one has twice the weight of...Problem 14AC:
14. A ball rolling across the floor slows to a stop because
a. there is a net force acting on it.
b....Problem 15AC:
15. The basic difference between instantaneous and average speed is that
a. instantaneous speed is...Problem 16AC:
16. Does any change in the motion of an object result in an acceleration?
a. Yes.
b. No.
c. It...Problem 17AC:
17. A measure of how fast your speed is changing as you travel to campus is a measure of
a....Problem 18AC:
18. Considering the forces on the system of you and a bicycle as you pedal the bike at a constant...Problem 19AC:
19. Newton’s first law of motion describes
a. the tendency of a moving or stationary’ object to...Problem 20AC:
20. You are standing freely on a motionless shuttle bus. When the shuttle bus quickly begins to move...Problem 21AC:
21. Mass is measured in kilograms, which is a measure of
a. weight.
b. force.
c. inertia.
d....Problem 23AC:
23. Newton’s third law of motion states that forces occur in matched pairs that act in opposite...Problem 24AC:
24. If you double the unbalanced force on an object of a given mass, the acceleration will be
a....Problem 25AC:
25. If you double the mass of a cart while it is undergoing a constant unbalanced force, the...Problem 26AC:
26. Doubling the distance between the center of an orbiting satellite and the center of Earth will...Problem 27AC:
27. If a ball swinging in a circle on a string is moved twice as fast, the force on the string will...Problem 28AC:
28. A ball is swinging in a circle on a string when the string length is doubled. At the same...Problem 29AC:
29. Suppose the mass of a moving scooter is doubled and its velocity is also doubled. The resulting...Problem 30AC:
30. Two identical moons are moving in identical circular paths, but one moon is moving twice as fast...Problem 31AC:
31. Which undergoes a greater change of momentum, a golf ball or the head of a golf club, when the...Problem 33AC:
33. An astronaut living on a space station that is orbiting Earth wall
a. experience zero...Problem 35AC:
35. You are at rest with a grocery cart at the supermarket when you see a checkout line open. You...Problem 36AC:
36. Once again you are at rest with a grocery cart at the supermarket when you apply a certain...Problem 37AC:
37. You are moving a grocery cart at a constant speed in a straight line down the aisle of store....Problem 38AC:
38. You are outside a store, moving a loaded grocery cart down the street on a very steep hill. It...Problem 39AC:
39. Neglecting air resistance, a ball in free fall near Earth’s surface will have _
a. constant...Problem 40AC:
40. From a bridge, a ball is thrown straight up at the same time a ball is thrown straight down...Problem 41AC:
41. After being released, a ball thrown straight up from a bridge will have an acceleration of...Problem 42AC:
42. A gun is aimed horizontally at the center of an apple hanging from a tree. The instant the gun...Problem 43AC:
43. According to the third law of motion, which of the following must be true about a car pulling a...Problem 44AC:
44. A small sports car and a large SUV collide head on and stick together without sliding. Which...Problem 45AC:
45. Again consider the small sports car and large SUV that collided head on and stuck together...Problem 46AC:
46. An orbiting satellite is moved from 10,000 to 30,000 km from Earth. This will result in what...Problem 47AC:
47. Newton’s law of gravitation considers the product of two masses because _
a. the larger mass...Problem 1QFT:
1. An insect inside a bus flies from the back toward the front at 2 m/s. The bus is moving in a...Problem 2QFT:
2. Disregarding air friction, describe all the forces acting on a bullet shot from a rifle into the...Problem 3QFT:
3. Can gravity act in a vacuum? Explain.
Problem 4QFT:
4. Is it possible for a small car to have the same momentum as a large truck? Explain.
Problem 5QFT:
5. Without friction, what net force is needed to maintain a 1,000 kg car in uniform motion for 30...Problem 6QFT:
6. How can there ever be an unbalanced force on an object if every action has an equal and opposite...Problem 8QFT:
8. Is it possible for your weight to change while your mass remains constant? Explain.
Problem 10QFT:
10. Suppose you are standing on the ice of a frozen lake and there is no friction
whatsoever. How...Problem 11QFT:
11. A rocket blasts off from a platform on a space station. An identical rocket blasts off from free...Problem 12QFT:
12. An astronaut leaves a spaceship that is moving through free space to adjust an antenna. Will the...Problem 2FFA:
2. What are the significant similarities and differences between velocity and acceleration?
Problem 3FFA:
3. Compare your beliefs and your own reasoning about motion before and after learning Newton's...Problem 4FFA:
5. Why is it that your weight can change by moving from one place to another, but your mass stays...Problem 5FFA:
6. Assess the reasoning that Newton's first law of motion tells us that centrifugal force does not...Problem 19PEA:
What is the resulting acceleration when an unbalanced force of 100 N is applied to a 5 kg object?Problem 21PEA:
A car weighing 13,720 N is speeding down a highway with a velocity of 91 km/h. What is the momentum...Problem 22PEA:
A 15 g bullet is fired with a velocity of 200 m/s from a 6 kg rifle. What is the recoil velocity of...Problem 24PEA:
(a) What is the weight of a 1.25 kg book? (b) What is the acceleration when a net force of 10.0 N is...Problem 2PEB:
2. What was the average speed in km/h of a boat that moves 15.0 km across a lake 45 min?
Problem 3PEB:
3. How much would an 80.0 kg person weigh (a) on Mars, where the acceleration of gravity is 3.93...Problem 4PEB:
4. What force is needed to give a 6,000 kg truck an acceleration of 2.2 m/s2 over a level road?
Problem 5PEB:
5. What is the resulting acceleration when a 300 N force acts on an object with a mass of 3,000...Problem 6PEB:
6. A boat moves 15.0 km across a lake in 30.0 min. What was the average speed of the boat in...Problem 7PEB:
7. If the Sun is a distance of 1.5 108 km from Earth, how long does it take sunlight to reach...Problem 8PEB:
8. How many meters away is a cliff if an echo is heard 0.500 s after the original sound? Assume...Problem 9PEB:
9. A car has an average speed of 80.0 km/h for 1 hour, then an average speed of 90.0 km/h for 2...Problem 10PEB:
10. What is the acceleration of a car that moves from a speed of 5.0 m/s to a speed of 15 m/s during...Problem 11PEB:
11. How much time is needed for a car to accelerate from 8.0 m/s to a speed of 22 m/s if the...Problem 12PEB:
12. A rocket moves through outer space at 11,000 m/s. At this rate, how much time would be required...Problem 13PEB:
13. Sound travels at 348 m/s in the warm air surrounding a thunderstorm. How far away was the place...Problem 14PEB:
14. How many hours are required for a radio signal from a space probe near the dwarf planet Pluto,...Problem 15PEB:
15. A rifle is fired straight up, and the bullet leaves the rifle with an initial velocity magnitude...Problem 16PEB:
16. A rock thrown straight up climbs for 2.50 s, then falls to the ground. Neglecting resistance,...Problem 17PEB:
17. An object is observed to fall from a bridge, striking the water below 2.50 s later, (a) With...Problem 18PEB:
18. A ball dropped from a window strikes the ground 2.00 s later. How high is the window above the...Problem 19PEB:
19. Find the resulting acceleration from a 300 N force that acts on an object with a mass of 3,000...Problem 20PEB:
20. What is the momentum of a 30.0 kg shell fired from a cannon with a velocity of 500 m/s?
Problem 22PEB:
22. A 30.0 kg shell is fired from a 2,000 kg cannon with a velocity of 500 m/s. What is the...Problem 23PEB:
23. An 80.0 kg man is standing on a frictionless ice surface when he throws a 2.00 kg book at 10.0...Problem 24PEB:
24. (a) What is the weight of a 5.00 kg backpack? (b) What is the acceleration of the backpack if a...Problem 26PEB:
26. What forward force must the ground apply to the foot of a 60.0 kg person to result in an...Problem 27PEB:
27. A 1,000.0 kg car accelerates uniformly to double its speed from 36.0 km/h in 5.00 s. What net...Problem 28PEB:
28. A net force of 3,000.0 N accelerates a car from rest to 36.0 km/h in 5.00 s. (a) What is the...Problem 29PEB:
29. How much does a 60.0 kg person weigh?
Browse All Chapters of This Textbook
Chapter 1 - What Is Science?Chapter 2 - MotionChapter 3 - EnergyChapter 4 - Heat And TemperatureChapter 5 - Wave Motions And SoundChapter 6 - ElectricityChapter 7 - LightChapter 8 - Atoms And Periodic PropertiesChapter 9 - Chemical BondsChapter 10 - Chemical Reactions
Chapter 11 - Water And SolutionsChapter 12 - Organic ChemistryChapter 13 - Nuclear ReactionsChapter 14 - The UniverseChapter 15 - The Solar SystemChapter 16 - Earth In SpaceChapter 17 - Rocks And MineralsChapter 18 - Plate TectonicsChapter 19 - Building Earth’s SurfaceChapter 20 - Shaping Earth’s SurfaceChapter 21 - Geologic TimeChapter 22 - The Atmosphere Of EarthChapter 23 - Weather And ClimateChapter 24 - Earth’s Waters
Sample Solutions for this Textbook
We offer sample solutions for PHYSICAL SCIENCE (LCPO) homework problems. See examples below:
Chapter 1, Problem 1ACChapter 2, Problem 1ACChapter 3, Problem 1ACChapter 4, Problem 1ACReason for the correct options: The term vibration is used for the motion of a particle which...Chapter 6, Problem 1ACChapter 7, Problem 1ACIntroduction: J.J Thomson performed an experiment of cathode rays and observed the green...Introduction: The chemical substances which are composed of two or more atoms of different elements...
Introduction: There are a number of compounds in this world. In order to simplify the name of each...Chapter 11, Problem 1ACIntroduction: A class of compounds containing only carbon and hydrogen is known as hydrocarbons....Introduction: Radioactivity refers to the disintegration or the breaking of the unstable nucleus of...Chapter 14, Problem 1ACChapter 15, Problem 1ACChapter 16, Problem 1ACChapter 17, Problem 1ACChapter 18, Problem 1ACChapter 19, Problem 1ACChapter 20, Problem 1ACChapter 21, Problem 1ACChapter 22, Problem 1ACChapter 23, Problem 1ACChapter 24, Problem 1AC
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