Physics Experiments
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| show | *level air track so rider travels with constant velocity
*attach card of length l
*record time card breaks light gate for t
*calculate velocity using v=l/t
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| show | *attach card of length l
*connect newtons to rider
*measure t1 on first light gate and t2 on the second
*record distance s between two light gates
*calculate acceleration by v^2=u^2+2as i.e: a=v^2-u^2/2s
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| Measure 'g' acceleration due to gravity using free fall apparatus and a scalar timer *GRAPH | show 🗑
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| To show that a∝f *GRAPH | show 🗑
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| Verify the principle of conservation of momentum | show 🗑
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| To verify Boyle's law i.e. p∝1/v *GRAPH | show 🗑
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| The Laws of equilibrium for a set of co-planar forces | show 🗑
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| show | *length as long as possible
*swing: with angle<5° :in one plane only
*record :length l :the time T for 50 oscillations *dec. length and record range
*calculate :T1 time for 1 oscillation and T^2
:l/T^2, all values should be approx. same
g=4π^2(l/T^2)
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| Plot the calibration curve of a themometer *GRAPH | show 🗑
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| show | *find mass of calorimeter mc and mass of water mw
*measure temp. of cold water & calorimeter Θ1
*switch on joulmeter and current and allow temp. rise of 15°C
*record reading on joulmeter Q and highest temp. reached Θ2
*use E=(mcΔΘ)w+(mcΔΘ)c
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| Measure Specific Latent Heat of Fusion of Ice | show 🗑
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| show | *mass of calorimeter mc & water mw
*cool water 5°C below room temp. Θi
*generate steam with steam trap
*heat to 5°C above room temp. Θf
*get new mass of all after
*use (mcΔΘ)s+(ml)s=(mcΔΘ)w+(mcΔΘ)c
*find l
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| show | *non symmetrical letter (object)
*get approx. focal length
*make sure object distance>approx. focal length
*get sharpest image on screen
*get: distance u and v
*repeat with range of u
*formula: 1/f=1/u+1/v
*find f
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| show | *two pins mark incident ray
*method of no parallax 2 pins on opposite side (emergent ray)
*mark: around block, rays in & out, normal.
*join incident and emergent ray to get refracted ray
*protractor: measure angle of i and r
*find sini/sinr of range
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| show | *fill beaker to top, pin at bottom
*other pin in retord stand
*line up image in mirror and pin in water
*back of mirror to pin in retord stand = apparent depth
*back mirror to bottom of beaker = real depth
*refractive index=real/apparent
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| show | *same as concave mirror
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| show | *laser 90° to wall(metre stick) and diffraction grating
*n=0 at 50cm mark
*measure distance from n=0 to n=1, n=2 & n=3
*use trig TanΘ=o/a to find Θ for each n value
*formula: nλ=dSinΘ to figure out λ(wavelength)
*d=1/x÷1000 when x is in mm
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| show | *sonometer length as long as possible
*tension constant value: when lowest frequency causes resonance
*strike next highest tuning fork and adjust length until resonance occurs
*get range of values: f, l & 1/l
*all values of fxl should be approx same
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| show | *length about 1/3 of max length- keep constant
*use lowest frequency tuning fork and adjust tension until resonance occurs
*record range of values for tension and frequency
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| To measure the Speed of Sound in air using a Resonance tube. *GRAPH | show 🗑
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| Demonstrate Ohm's Law *GRAPH | show 🗑
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| Verify Joule's Law: Change in temp. due to a current ∝ I^2 (ΔΘ∝I^2) *GRAPH | show 🗑
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| To measure resistivity of the material of a wire | show 🗑
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| Investigate the variation of the resistance of a Metallic Conductor with temperature *GRAPH | show 🗑
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| show | *thermistor to ohmmeter note resistance
boiling tube of glycerol, note temp. (also temp. of thermistor)
*measure approx. resistance of thermistor
*heat
*for every 10°C rise, record temp. and resistance
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| Investigate variation of current (I) with p.d (V) :Metallic Conductor :Filament Bulb :Copper Electrodes :Semi-conductor | show 🗑
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