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What do scalar quantities only have?
A magnitude/size
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Vector quantities have a m______, d______ and a p___ of a_______
- Magnitude
- Direction
- Point of application
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Speed is the r____ of c_____ of d______
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Speed is a s____ quantity
scalar
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speed=
- speed= total distancetotal time
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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
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s= ___ speed+____ speed
2
- s= initial speed + final speed2
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Velocity is the r___ of c____ of d__________.
Velocity is the rate of change of displacement.
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Velocity is s_____ in a given d_______
Velocity is speed in a given direction
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Acceleration is the r____ of c_____ of v______
Acceleration is the rate of change of velocity
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acceleration=final __X___ - initial __X___
y
- acceleration=final velocity - initial velocitytime
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Mass is a property of a body that ____ ____
resists change
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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
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Weight c_____ from _____ to _____
- Weight changes from planet to planet
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Weights can be compared using a b_____
balance
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Weight=_____ x _______ ____ _______
Weight=mass x gravitational field strength
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IS WEIGHT MEASURED IN NEWTONS OR KILOGRAMS ?????
newtons OF COURSE
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IS MASS MEASURED IN NEWTONS OR KILOGRAMS????
kilograms
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Density is the _____ per unit ______
Density is the mass per unit volume
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Density can represented by the letter _
ρ or D
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Density is measured in __/___3 or g/m3
Kg/m3 or g/cm3
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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.
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force=____ x ________
force=mass x acceleration
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Load/ Hookes law
load=sp___ c_____t x e______n
load=spring constant x extension
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A moment is the t_____ affect of a f______.
A moment is the turning affect of a force.
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Moment=f____ x p_________ d_________ from the pivot
Moment=force x perpendicular distance from the pivot
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Moments are measured in _______ _______.
Moments are measured in Newton metres (Nm)
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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.
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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
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Work done is in _____
Work done is in Joules (J)
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Momentum=m____ x v_____
Momentum=mass x velocity
or p=mv
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Kinetic energy is the e____ of a b_____ due to its m_____
Kinetic energy is the energy of a body due to its motion
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Kinetic energy= 1/2 x m___ x v______2
Kinetic energy= 1/2 x mass x velocity2
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Kinetic energy is measured in J_____ (J)
Kinetic energy is measured in Joules (J)
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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.
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Gravitational energy=m____ x a________ due to g_______ x h_____ gained/lost
Gravitational energy=mass x acceleration due to gravity x height gained/lost
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GPE is in J____ (J)
GPE is in Joules (J)
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Efficiency=______ _____x 100%
_____ _____
- Efficiency=useful output x 100%
- total input
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Power is the r___ at w___ e_____ is c_______
Power is the rate at which energy is converted
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Power=w___ d____
t___ t____
- Power=work done
- time taken
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Power=e____ c_____
t___ t____
- Power=energy change time taken
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Power is measured in W____
Power is measured in Watts
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Pressure is measured in _/_2, p____ (Pa), m__b_r
Pressure is measured in N/m2, pascals (Pa), millibar
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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
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