![]() The diagram below shows a transverse wave moving toward the right along a rope.Īt the instant shown, point on the rope is moving toward theģ0. As a light ray travels from medium into medium, the speed of the light ray isĢ9. The absolute index of refraction of medium is twice as great as the absolute index of refraction of medium. If monochromatic light passes from water into the air with an angle of incidence of, which characteristic of the light will remain the same?Ģ8. (4) an electron traveling back and forth in a wireĢ7. Which type of oscillation would most likely produce an electromagnetic wave? ![]() Which waves require a material medium for transmission?Ģ6. Glass may shatter when exposed to the sound of a particular frequency. When a wave travels through a medium, the wave transfersĢ4. What is the rate at which work is done in lifting a -kilogram object vertically at a constant speed of meters per second?Ģ3. What is the total electrical energy used to operate the toaster for seconds?Ģ2. An electric toaster is rated watts at volts. (4) series with multiple current pathwaysĢ1. ![]() (2) parallel with multiple current pathways The lights in this string must be connected in When only one lightbulb blows out, an entire string of decorative light goes on. ![]() Neglecting friction, if the gravitational potential energy of the block increases by joules, its kinetic energyĢ0. A motor does joules of work on a block, accelerating the block vertically upward. Which metal conducts electricity better than copper at C?ġ9. Copper is a metal commonly used for electrical wiring in houses. An observer counts complete water waves passing by the end of a dock every seconds. What is the energy of the photon emitted when an electron in a mercury atom drops from energy level f to energy level b?ġ7. (4) repulsion between the two charges increasesġ6. (3) repulsion between the two charges decreases (2) attraction between the two charges increases (1) attraction between the two charges decreases As the distance between the two point charges is decreased, the electrostatic force of An electrostatic force exists between two -coulomb point charges separated by a distance of meter. (3) Both forces may be either attractive or repulsive.ġ5. (2) The gravitational force must be attractive, whereas the electrostatic force may be either attractive or repulsive. (1) The gravitational force may be either attractive or repulsive, whereas the electrostatic force must be attractive. Which statement describes the gravitational force and the electrostatic force between two charged particles? The energy required to move a charge of coulomb from point to point isġ4. The potential difference between two points, and, in an electric field is volts. Which arrow represents the direction of the net force acting on the electron when the electron is at position ?ġ3. An electron in a magnetic field travels at a constant speed in the circular path represented in the diagram below. What is the speed of cart after the spring is released?ġ2. After the spring is released, the speed of cart is meters per second, as represented in the diagram below. When a compressed spring attached to one of the carts is released, the carts are pushed apart. A -kilogram cart,, and a -kilogram cart,, are initially held together at rest on a horizontal, frictionless surface. What is the magnitude of the electric field strength at the location of the electron?ġ1. An electric field exerts an electrostatic force of magnitude newton on an electron within the field. The diagram below shows a light ray striking a plane mirror.ġ0. If a block is in equilibrium, the magnitude of the block’s acceleration isĩ. If the time of fall is seconds, what is the magnitude of the acceleration due to gravity on planet ?Ĩ. An object starts from rest and falls freely for meters near the surface of planet. What is the magnitude of the acceleration of the car?ħ. A car traveling in a straight line at an initial speed of meters per second accelerates uniformly to a speed of meters per second over a distance of meters. The magnitude of the acceleration due to gravity on the surface of planet isĦ. On the surface of planet, a body with a mass of kilograms weighs newtons. What is the acceleration of the car during this -second interval?ĥ. A car with an initial velocity of meters per second east slows uniformly to meters per second east in seconds. What is the total distance traveled by the hiker?Ĥ. A hiker travels kilometer south, turns and travels kilometers west, and then turns and travels kilometers north. A displacement vector with a magnitude of meters could have perpendicular components with magnitudes ofģ.
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