1 About Science 2 Newton’s First Law Of Motion - The Law Of Inertia 3 Newton’s Second Law Of Motion - Force And Acceleration 4 Newton’s Third Law Of Motion - Action And Reaction 5 Momentum 6 Energy 7 Gravity, Projectiles And Satellite Motion 8 Fluid Mechanics 9 Heat 10 Electricity 11 Magnetism 12 Waves And Sound 13 Light, Reflection And Color 14 Properties Of Light 15 The Atom 16 Nuclear Energy 17 Elements Of Chemistry 18 How Atoms Bond And Molecules Attract 19 How Chemicals Mix 20 How Chemicals React 21 Two Types Of Chemical Reactions 22 Organic Compounds 23 The Nutrients Of Life 24 Medicinal Chemistry 25 Rocks And Minerals 26 The Architecture Of Earth 27 Plate Tectonics - A Unifying Theory 28 Shaping Earth's Surface 29 Geologic Time - Reading The Rock Record 30 The Atmospheres, The Oceans And Their Interactions 31 Weather 32 The Solar System 33 Stars 34 Galaxies And Cosmos Appendix A On Measurement And Unit Conversion Appendix B Linear And Rotational Motion Appendix C Working With Vector Components Appendix D Exponential Growth And Doubling Time Appendix E Safety expand_more
Chapter Questions expand_more
Problem 1RQ: According to Aristotle, where do moving objects tend to reach? Problem 2RQ: According to Aristotle, what kind of motion requires no force? Problem 3RQ: What two of Aristotle's main ideas did Galileo discredit? Problem 4RQ: What is the name of the property of objects to maintain their states of motion? Problem 5RQ: Distinguish between speed and velocity. Problem 6RQ: Why do we say velocity is a vector quantity and speed is not? Problem 7RQ: How can you both at rest and also moving at 100,000km/h at same time? Problem 8RQ: Was it Aristotle or Galileo who relied on experiments? Problem 9RQ: Who was first to discover the concept of inertia, Galileo or Newton? Who incorporated it into law of... Problem 10RQ: What is the tendency of a moving object when no forces act on it? Problem 11RQ: When only a pair of equal and opposite forces act on an object, what is the net force acting on it? Problem 12RQ: We’ve learned that velocity is a vector quantity. Is force also a vector quantity? Why or why not? Problem 13RQ: Name the force that occurs in a rope when both ends are pulled in opposite directions. Problem 14RQ: How much tension is there in a rope that holds a 20N bag of apples at rest? Problem 15RQ: What is the meaning of F=0? Problem 16RQ: Why is the support force on an object often called the normal force? Problem 17RQ: When you weigh yourself, are you actually reading support force acting on you, or are you really... Problem 18RQ: Give an example of something moving when a net force of zero acts on it. Problem 19RQ: If we push a crate at constant velocity, how do we know how much friction acts on the crate compared... Problem 20RQ: If you’re in a smooth-riding bus that is going at 50km/h and and you flip a coin vertically, what is... Problem 1PC: Calculate Emily’s average walking speed when she covers 1meter in 0.5second. Problem 2PC: Calculate your average speed if you run 100 meters in 10 seconds. Problem 3PC: Calculate the average speed of a mouse who runs across a 4-meter-long room in 0.4 seconds. Problem 4PC: Calculate the speed of a bowling ball that moves 8 meters in 4 seconds. Problem 1TC: Jogging Johnny runs along a train flatcar that moves at the velocities shown. From greatest to... Problem 2TC: A track is made of a piece of channel metal bent as shown. A ball is released from rest at the left... Problem 3TC: A block of iron is suspended by ropes in the positons shown below. Scales measure the tension... Problem 1TE: Galileo found that a ball rolling down one incline will pick up enough speed to rollupanother. How... Problem 2TE: Correct your friend who says, "The race-car driver rounded the curve at a constant velocity of... Problem 3TE: If the speedometer of a car reads a constant speed of 50km/h , can you say that the car has a... Problem 4TE: A hungry mosquito watches you resting in a hammock in a 3-m/s breeze. With what velocity relative to... Problem 5TE: If a huge bear were chasing you, its enormous mass would be very threatening. But if you ran in a... Problem 7TE: A space probe may be carried by a rocket into outer space. Your friend asks what kind of force keeps... Problem 8TE: Consider a ball at rest in the middle of a toy wagon. When the wagon is pulled forward, the ball... Problem 9TE: Why do you lurch forward in a bus that suddenly slows Why do you lurch backward when it picks up... Problem 10TE: Push a shopping cart and it moves. When you stop pushing, it soon comes to rest. Does this violate... Problem 11TE: When your car moves along the highway at constant velocity, the net force on it is zero. Why, then,... Problem 12TE: Consider a pair of parallel forces, one having a magnitude of 20N, and the other 12N. What maximum... Problem 13TE: The sketch shows a painting scaffold in mechanical equilibrium. The person in the middle weighs... Problem 14TE: A different scaffold that weighs 300N supports two painters, one of whom weighs 250N and the other... Problem 15TE: Nellie Newton hangs at rest from the ends of the rope, as shown. How does the reading on the scale... Problem 16TE: Harry the painter swings year after year from his bosun’s chair. His weight is 500N and the rope,... Problem 17TE: Latisha stands on a bathroom scale and reads her weight. Does the reading change if she raises one... Problem 18TE: A child learns in school that Earth is travelling faster than 100000km/h around the Sun and in a... Problem 19TE: If you toss a coin straight upward while riding in a train, where does the coin land when the motion... Problem 20TE: As Earth rotates about its axis, it takes 3 hours for the United States to pass beneath a point... Problem 1TS: A tennis ball travels the full length of the court, 24m , in 0.5s . What is the average speed? Problem 2TS: What is your average speed if you run 50m in 10s? Show that the distance you’d travel at this speed... Problem 3TS: Find the net force produced by a 30-N and 20-N force in each of the following cases: (a) Both forces... Problem 4TS: A horizontal force of 100N is required to push a crate of cell phones across a floor at a constant... Problem 5TS: Phil Physicer weighs 600N(132lb) and stands on two bathroom scales. He stands so one scale reads... Problem 1RAT: Aristotle distinguished between natural motion and unnatural motion. Galileo stated that all motion... Problem 2RAT: The difference between speed and velocity most involves (a) direction. (b) amount. (c) different... Problem 3RAT: The first scientist to discover the concept of inertia was (a) Aristotle. (b) Galileo. (c) Newton.... Problem 4RAT: According to Newtons first law of motion (a) objects at rest tend to remain at rest. (b) objects in... Problem 5RAT: A ball rolling along a bowling alley moves at constant speed (a) without the need of horizontal... Problem 6RAT: If your textbook is pulled to the right with while being pulled to the left with , the net force on... Problem 7RAT: The equilibrium rule, F=0 , applies to (a) objects or systems at rest. (b) objects or systems in... Problem 8RAT: When you stand on two bathroom scales, one foot on each scale with weight evenly distributed, each... Problem 9RAT: If you push your desk along the floor with a force of 80 N and it slides at constant speed, then the... Problem 10RAT: Suppose you stand on the floor of a train moving at constant speed in a straight line. If you jump... format_list_bulleted