### physics

miriel baniel

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Across
5.an image in which the outgoing rays from a point on the object always diverge.
6.an upward force exerted by a fluid that opposes the weight of an immersed object.
9.an image which is located in the plane of convergence for the light rays that originate from a given object.
10.a mathematical description of the magnetic influence of electric currents and magnetic materials.
11.the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.
12.any influence that causes an object to undergo a certain change, either concerning its movement, direction, or geometrical construction.
15.makes use of Faraday's law and the ferromagnetic properties of an iron core to efficiently raise or lower AC voltages.
16.a mathematical description of the magnetic influence of electric currents and magnetic materials.
19.the amount of energy consumed per unit time.
25.positively charged particle
26.the change in direction of a wave due to a change in its transmission medium.
27.The potential energy of a magnet of magnetic moment m in a magnetic field B is defined as the work of magnetic force .
28.one of the basic quantitative properties describing a physical system or object's state.
29.when it acts on a body, and there is a displacement of the point of application in the direction of the force.
31.is the rate at which the velocity of an object changes with time.
32.linear momentum or translational momentum is the product of the mass and velocity of an object.
34.the principle of transmission of fluid-pressure.
36.curving in or hollowed inward, as opposed to convex.
37.electromagnetic radiation that is visible to the human eye, and is responsible for the sense of sight.
38.mechanics, the universal force of attraction acting between all matter.
41.mechanical phenomenon whereby oscillations occur about an equilibrium point.
42.the amount of time required for a quantity to fall to half its value as measured at the beginning of the time period.
43.is an object that reflects light in a way that preserves much of its original quality subsequent to its contact with the mirror.
44.states that for an inviscid flow, an increase in the speed of the fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.
45.an object is the magnitude of its velocity.
Down
1.usually means the part of the energy of an atomic nucleus, which can be released by fusion or fission or radioactive decay.
2.energy stored in a system of forcefully interacting physical entities .
3.a basic unit of matter that consists of a dense central nucleus surrounded by a cloud of negatively charged electrons.
4.the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated.
7.an object is the energy which it possesses due to its motion.
8.negative charged particle
13.is a mirror with a planar reflective surface.
14.the overall force acting on an object. In order to calculate the net force.
17.a nuclear reaction or a radioactive decay process in which the nucleus of a particle splits into smaller parts.
18.the rate of change of the position of an object, equivalent to a specification of its speed and direction of motion, e.g. 60 km/h to the north.
19.study of matter
20.the resistance of any physical object to any change in its state of motion.
21.transfer of energy from a hotter body to a colder one, other than by work or transfer of matter.
22.is an artifact that depicts or records visual perception.
23.curving out or bulging outward.
24.loosely defined term in science
30.Electromagnetic radiation of the shortest wavelength and highest energy
33.class of physical phenomena that includes forces exerted by magnets on other magnets.
35.that the upward buoyant force that is exerted on a body immersed in a fluid,
39.the ratio of force to the area over which that force is distributed.
40.also known as a reversed image is an image which has undergone a rotation of 180 degrees about a plane.

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