Terms : Hide Images
| 9719154865 | vector | quantity that involves both magnitude and direction |  | 0 |
| 9719154866 | scalar | a quantity that does not involve a direction |  | 1 |
| 9719154867 | kinematics | mathematical tools for describing motion in terms of displacement, velocity, and acceleration |  | 2 |
| 9719154868 | position | location in some point in space |  | 3 |
| 9719154869 | displacement | change in position |  | 4 |
| 9719154870 | average speed formula | total distance/ time d/t |  | 5 |
| 9719154871 | average velocity | displacement / time △x/△t |  | 6 |
| 9719154872 | velocity | speed with a direction |  | 7 |
| 9719154873 | acceleration | change in velocity/ time △v/△t |  | 8 |
| 9719154874 | slope of position-versus-time graph | velocity |  | 9 |
| 9719154875 | slope of velocity-versus-time graph | acceleration |  | 10 |
| 9719154876 | area between the graph and the t axis on a velocity-versus-time graph | object's displacement |  | 11 |
| 9719154877 | gravity | -10 m/s^2 |  | 12 |
| 9719154878 | Newton's first law | an object at rest will stay at rest and an object in motion will stay in constant velocity unless a net force acts on it (law of inertia) |  | 13 |
| 9719154975 | Newton's second law |  | 14 | |
| 9719154879 | Newton's third law | for every action there is an equal but opposite reaction (action/ reaction pair) |  | 15 |
| 9719154880 | newton | kg m/s^2 unit of force |  | 16 |
| 9719154881 | inertia | the property of objects to naturally resist changes in their states of motion |  | 17 |
| 9719154882 | weight (of an object) | the gravitational force exerted on it by the Earth or whatever planet Fw or Fg= mg |  | 18 |
| 9719154883 | normal force | component of force that's perpendicular to the surface |  | 19 |
| 9719154884 | free-body diagram | A diagram that shows all the forces acting on an object |  | 20 |
| 9719154885 | friction force | force that's parallel to the surface |  | 21 |
| 9719154886 | static friction | occurs when there is no motion between two objects (friction that holds an object still) |  | 22 |
| 9719154887 | mu | coefficient of friction |  | 23 |
| 9719154888 | kinetic friction | occurs when there is relative motion (when there's sliding) |  | 24 |
| 9719154889 | kinetic energy | the energy of an object due to motion K= .5mv^2 |  | 25 |
| 9719154890 | potential energy | the energy an object or system has by virtue of its position Ug - gravitational potential energy △Ug= mg△h |  | 26 |
| 9719154891 | uniform circular motion | -speed is constant - velocity is not constant because the direction of velocity is always changing -in order to produce acceleration there must be a force towards the center |  | 27 |
| 9719154892 | centripetal force | Caused by something - friction, tension, gravity. Always points towards the center. NEVER used as a force on a force diagram |  | 28 |
| 9719154893 | newton's law of gravitation | any two objects in the universe exert an attractive force on each other called the gravitational force |  | 29 |
| 9719154894 | universal gravitational constant (G)= | 6.7 E-11Nkg^2/m^2 |  | 30 |
| 9719154895 | gravitational force | r is the distance between the two objects |  | 31 |
| 9719154896 | torque | -a property of force that makes an object rotate - NOT A FORCE - theta = angle between force and object |  | 32 |
| 9719154897 | equilibrium | - sum of all forces acting on an object is 0: F net=0 acceleration = 0 |  | 33 |
| 9719154898 | rotational equilibrium | - sum of all torques on an object is 0: T net = 0 |  | 34 |
| 9719154899 | static equilibrium | an object is at rest |  | 35 |
| 9719154900 | rotational inertia | also known as the moment of inertia -the tendency of an object in motion to rotate until acted upon by an outside force |  | 36 |
| 9719154901 | Joule | unit of energy; Nm |  | 37 |
| 9719154902 | meter | Unit of distance or displacement. |  | 38 |
| 9719154903 | second | Unit of time. |  | 39 |
| 9719154904 | Greater | The longer the lever arm, the ... the torque. |  | 40 |
| 9719154905 | Less | The less the force applied, the ... the torque. |  | 41 |
| 9719154906 | decreases | As the distance from a planet increases, the velocity to orbit at that location ... |  | 42 |
| 9719154907 | increases | As the distance from the planet decreases, the force of gravity at that location ... |  | 43 |
| 9719154908 | inverse square | Gravitational force is what type of formula? |  | 44 |
| 9719154909 | Dynamic equilibrium | moving at a constant velocity forces are balanced |  | 45 |
| 9719154910 | sine | Trig function - opposite/hypotenuse |  | 46 |
| 9719154911 | cosine | Trig function - adjacent/hypotenuse | | 47 |
| 9719154912 | tangent | Trig function - opposite/adjacent |  | 48 |
| 9719154913 | tension | Type of force in a cable or rope |  | 49 |
| 9719154914 | atwood machine | A single pulley with two different masses, allowed to accelerate under the influence of gravity |  | 50 |
| 9719154915 | doubles | If you double one mass, what happens to the Fg between two masses? |  | 51 |
| 9719154916 | quadruples | If you decrease the distance between two masses, what happens to the Fg between them? |  | 52 |
| 9719154917 | increases 9 fold | If you triple your velocity, what happens to the stopping distance required for decent tires? |  | 53 |
| 9719154918 | Period | Time for one rotation or revolution |  | 54 |
| 9719154919 | frequency | number of rotations/second |  | 55 |
| 9719154920 | T = 1/f | Formula for the relationship between period and frequency |  | 56 |
| 9719154921 | add | If you have a mass moving up an incline, what do you do with the force down the incline and the force of friction? |  | 57 |
| 9719154922 | terminal velocity | Fastest falling speed; due to air resistance |  | 58 |
| 9719154923 | Hooke's Law | F = -kx |  | 59 |
| 9719154924 | 45 | angle for the best range for a projectile |  | 60 |
| 9719154925 | 90 | angle for longest hand time for a projectile | | 61 |
| 9719154926 | down | What direction does gravity always point? |  | 62 |
| 9719154927 | peak | The name for the tippy top of a trajectory for an upwardly fired projectile. |  | 63 |
| 9719154928 | linear velocity | angular velocity/r |  | 64 |
| 9719154929 | gm1/(m1+m2) | acceleration for something falling and pulling another object along |  | 65 |
| 9719154930 | Watt | The unit of power; J/s |  | 66 |
| 9719154931 | Ohm's "law" | I = V/R |  | 67 |
| 9719154932 | nonohmic | resistors that don't obey Ohm's law |  | 68 |
| 9719154933 | source | battery or wall socket |  | 69 |
| 9719154934 | conductor | wire |  | 70 |
| 9719154935 | load | another name for an appliance or resistor |  | 71 |
| 9719154936 | Power | IV |  | 72 |
| 9719154937 | decreases by a factor of 16 | If you quadruple the distance between two charges, what happens to the electrical force between them? |  | 73 |
| 9719154940 | Coulomb's Law | Ge = kQ1Q2/r^2 |  | 74 |
| 9719154941 | repulsion | When the value for Fe is positive, what does that mean? |  | 75 |
| 9719154947 | volt | unit of potential difference |  | 76 |
| 9719154948 | ampere | unit of current; C/s |  | 77 |
| 9719154949 | 1.60 E-19 C | value of the charge of a single electron? |  | 78 |
| 9719154950 | outward | What direction do positive charges point? |  | 79 |
| 9719154951 | electrons | All charges are about added or lost ... | | 80 |
| 9719154952 | 345 m/s | the average speed of sound is ... |  | 81 |
| 9719154953 | beats | [f2-f1] = ? |  | 82 |
| 9719154954 | echo | Reflected sound is called a/an ... |  | 83 |
| 9719154955 | open pipe | fundamental f = v/(2L) |  | 84 |
| 9719154956 | closed pipe | fundamental f = v/(4L) |  | 85 |
| 9719154957 | refraction | the bending of a wave as it changes media |  | 86 |
| 9719154958 | reflection | the bouncing off of a wave from a rigid suface |  | 87 |
| 9719154960 | wave | wiggle in time |  | 88 |
| 9719154961 | crest | the high point on a transverse wave |  | 89 |
| 9719154962 | longitudinal | the type of wave sound is |  | 90 |
| 9719154963 | transverse | the type of wave light is |  | 91 |
| 9719154964 | constructive interference | Superposition of waves where the amplitude increases |  | 92 |
| 9719154965 | destructive interference | Superposition of waves where the amplitude decreases |  | 93 |
| 9719154966 | pitch | A musician 's term for the frequency of a sound |  | 94 |
| 9719154967 | ultraviolet | the type of light radiation that causes skin cancer and cataracts |  | 95 |
| 9719154968 | infrared | the type of light radiation that causes your skin to feel warm but undamaged. |  | 96 |
| 9719154969 | kinetic and rotational energy | When a ball is rolling down an incline it is converting potential energy into ... |  | 97 |
| 9719154970 | hollow | Between a hollow and a solid ball, the one with the most rotational inertia, who gets to the bottom last is ... |  | 98 |
| 9719154971 | atwood machine | a(m2-m1)/(m2 + m1) |  | 99 |
