# Physics

 What do scalar quantities only have? A magnitude/size Vector quantities have a m______, d______ and a p___ of a_______ MagnitudeDirectionPoint of application Speed is the r____ of c_____ of d______ RateChangeDistance Speed is a s____ quantity scalar speed= speed= total distancetotal time For constant acceleration situations, the average speed is also equal to the a______ of the i____ and f____ speeds. average of the initial and final speeds s= ___ speed+____ speed 2 s= initial speed + final speed2 Velocity is the r___ of c____ of d__________. Velocity is the rate of change of displacement. Velocity is s_____ in a given d_______ Velocity is speed in a given direction Acceleration is the r____ of c_____ of v______ Acceleration is the rate of change of velocity acceleration=final __X___ - initial __X___ y acceleration=final velocity - initial velocitytime Mass is a property of a body that ____ ____ resists change Weight is a ____ on a ____ due to the ___________ ____ of the _____ Words: force - mass - gravitational field - Planet Weight is a force on a mass due to the gravitational field of the Planet Weight c_____ from _____ to _____ Weight changes from planet to planet Weights can be compared using a b_____ balance Weight=_____ x _______ ____ _______ Weight=mass x gravitational field strength IS WEIGHT MEASURED IN NEWTONS OR KILOGRAMS ????? newtons OF COURSE IS MASS MEASURED IN NEWTONS OR KILOGRAMS???? kilograms Density is the _____ per unit ______ Density is the mass per unit volume density= ______ massvolume Density can represented by the letter _ ρ or D Density is measured in __/___3 or g/m3 Kg/m3 or g/cm3 A force is a p___ or p___; it can change the s____, d______, and/or s____ of an object. A force is a push or pull; it can change the shape, direction, and/or speed of an object. force=____ x ________ force=mass x acceleration Load/ Hookes law load=sp___ c_____t x e______n load=spring constant x extension A moment is the t_____ affect of a f______. A moment is the turning affect of a force. Moment=f____ x p_________ d_________ from the pivot Moment=force x perpendicular distance from the pivot Moments are measured in _______ _______. Moments are measured in Newton metres (Nm) When there is no r_______t f____e AND no r______g t____ing a___t, a system is in e________m. When there is no resultant force AND no resulting turning affect, a system is in equilibrium. Work done=f____ x d______e in the direction of the force = change in e____y or W=Fd=ΔE Work done=force x distance in the direction of the force = change in energy or W=Fd=ΔE Work done is in _____ Work done is in Joules (J) Momentum=m____ x v_____ Momentum=mass x velocity or p=mv Kinetic energy is the e____ of a b_____ due to its m_____ Kinetic energy is the energy of a body due to its motion Kinetic energy= 1/2 x m___ x v______2 Kinetic energy= 1/2 x mass x velocity2 Kinetic energy is measured in J_____ (J) Kinetic energy is measured in Joules (J) Gravitational potential energy is the e____ of a b____ due to its p____ in the gr_______ field. Gravitational potential energy is the energy of a body due to its position in the gravitational field. Gravitational energy=m____ x a________ due to g_______ x h_____ gained/lost Gravitational energy=mass x acceleration due to gravity x height gained/lost GPE=_ _ _ GPE=mgh GPE is in J____ (J) GPE is in Joules (J) Efficiency=______ _____x 100% _____ _____ Efficiency=useful output x 100% total input Power is the r___ at w___ e_____ is c_______ Power is the rate at which energy is converted Power=w___ d____ t___ t____ Power=work done time taken Power=e____ c_____ t___ t____ Power=energy change time taken Power is measured in W____ Power is measured in Watts Pressure=f____ a___ Pressure=force area Pressure is measured in _/_2, p____ (Pa), m__b_r Pressure is measured in N/m2, pascals (Pa), millibar FLUID PRESSURE=d____ of fluid x a_______ due to gravity x h____ of f____ above or P=dgh FLUID PRESSURE=density of fluid x acceleration due to gravity x height of fluid above or P=dgh Authortimothynank ID9110 Card SetPhysics Descriptionphysics Updated2010-03-08T19:49:20Z Show Answers