2.5 
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Interactive Simulations   Position and displacement in one dimension    Displacement and position in two dimensions    Solve v=dx/dt for dt    Velocity, position, and time (basic version)    Velocity, position, and time (more advanced version)    Acceleration (basic version)    Acceleration (more advanced version)    Static equilibrium    Static equilibrium and the lever    Newton's second law (basic version)    Newton's second law (more advanced version)    Circular motion interactive simulation    Orbits of the planets and dwarf planets    Orbits simulation Interactive Calculators   Speed calculator    Velocity calculator    Acceleration calculator    Velocity in accelerated motion    Average velocity calculator    Hooke's law calculator    Torque calculator    Rotational equilibrium and torque    Newton's second law calculator    Momentum calculator    Angular velocity    Linear velocity and angular velocity    Centripetal acceleration    Centripetal force    Law of universal gravitation calculator
1 - Science of Physics
2 - Forces and Motion      Chapter 2 at a glance      2.1 - Motion      2.2 - Force, momentum, and Newton's laws      2.3 - Circular motion      2.4 - Solving harder physics problems      2.5 - Chapter review3 - Energy Transformations4 - Waves and Sound
5 - Electricity and Magnetism
6 - Light and Optics
7 - The Atom
8 - Linear Motion
9 - Vectors and Forces
10 - Forces
11 - Newton's Laws and Gravitation
12 - Circular Motion and Gravitation
13 - Torque and Static Equilibrium
14 - Momentum and Collisions
15 - Angular momentum
16 - Power and Machines
17 - Harmonic Motion
18 - Waves
19 - Sound
20 - Electricity
21 - Electric and Magnetic Fields
22 - Electromagnetism and Induction
23 - Light and Color
24 - Geometrical Optics
25 - Electromagnetic Radiation
26 - The Properties of Matter
27 - Thermodynamics and Heat Transfer
28 - The Atom
29 - The Quantum Theory
30 - TBD
31 - TBD
32 - TBD
33 - TBD
34 - TBD
35 - TBD
36 - TBD
37 - The atomic nucleus and radioactivity
38 - Nuclear reactions
39 - Relativity
40 - Particle physics and the standard model
41 - Electronics (semiconductors)
42 - Nuclear technology
43 - Lasers and photonics
44 - Metals, alloys and materials science
45 - Communications technology
46 - Buildings and structures
47 - Energy technology
48 - Biophysics
49 - Matter and Energy, Space and Time
50 - Energy Transformations
51 - Nanotechnology
52 - Website Videos
53 - ExtraStuff
55 - Modeling Motion, Friction, and Center of Mass
56 - Work and the Conservation of Energy
Chapter 2 Review

    Vocabulary
    Match each word to the sentence where it best fits.
      Section 2.1

      positionacceleration
      speedscalar
      coordinatesposition
      velocityslope
      1. The rate of change of velocity is _______

      2. _______ can be calculated by dividing the change in position by the change in time.

      3. _______ measures the steepness of a graph.

      4. _______ are values that together determine a unique position in space.

      5. _______ is a vector that identifies a specific location in space relative to an origin.

      6. _______ has the same units as speed but is a vector so includes information about direction.

      7. Mass, speed and temperature are examples of _______ quantities unlike the vector quantities such as velocity and force

      Section 2.2

      forcenewton (N)
      poundnet force
      weightfree-body diagram
      normal forcespring
      spring constanttorque
      line of actionequilibrium
      leverfulcrum
      frictionNewton's first law of motion
      Newton's second law of motionNewton's third law of motion
      1. "To every action there is always an equal and opposite reaction" is a statement of _______.

      2. A _______ is a simple machine that uses torque to multiply linear forces.

      3. An object in _______ has no net force and no net torque on it.

      4. The _______ measures how stiff a spring is and how much force it takes to deform it.

      5. A _______ is a device that can store energy when it is deformed.

      6. The _______ prevents two objects from going through each other.

      1. The action that causes the motion of a body to change is called a _______.

      2. The _____ is the SI unit of force.

      3. The supermarket often sells meat and vegetables by the ______, a unit of force often associated with weight.

      4. When multiple forces act on an object, the ________ is the sum of all forces, taking account of both strength and direction.

      5. _______ is measured in units of Newton meters.

      6. The _______ goes through an object and points where a force goes.

      7. The point about which a lever rotates is the _______.

      8. Force that act to resist motion are called _______.

      9. Another name for _______ is the law of inertia.

      10. According to _______, the acceleration of an object is directly proportional to the force exerted on it.

      11. The force of gravity acting on an object is the _______.

      12. A _______ is a diagram showing all the forces acting on an object.

      Section 2.3

      centripetal forcesatellite
      radianangular velocity
      centripetal accelerationorbit
      law of universal gravitation
      1. The force that causes an object to move in a circle is the _______.

      2. When measuring angles, the _______ is an alternative unit to a degree.

      3. _______ is expressed in radians per second.

      4. Although acceleration usually causes a change in speed, _______ causes a change in direction.

      5. Many man-made satellites _______ the earth and relay information across the globe.

      6. The _______ relates the two objects' masses and the distance between the to how much they are attracted to each other.


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