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Specific Heat Capacity

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Transformer

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Wave

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ModelShape of the

wall barrier

Depth of the

sea water

Gap between

the wall

barriers

Base between

the wall

barriers

P

Shallow None Small

Q

Deep Large Large

R

Shallow None Small

S Deep Small Large

Explain the suitability of characteristic in Table 12. Determine the suitable model.

Give your reasons for your choice.

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Most suitable is Q

Characteristic Reason

High amplitude louder

Longer wavelength Can diffract easily

Low damping Can be heard clearly

Low frequency Low pitch/ distinguished from othersound/can be heard by human

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Electricity

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Force and Pressure

Sugestion Reason

Cylinder with a larger diameter at the lowerpart/diagram

To sink the hydrometer and prevent theoverturned .

Lead shots / diagram To enable it stand upright

Cylinder with small diameter at the top /diagram

Small scale reading can be combined

Glass bulb at the lower partScale can be made larger or smaller from thedensity of water

Filled with air / diagramCan measure the density of the higher andlower than the water

Hydrometer is placed in low density liquid Mark the low level

Hydrometer is placed in high density liquid Mark the high level

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Electromagnet

Change cumutator by two slip rings/diagram current flow as a.c

Add the number of coils/diagram increase the induced current

Increase the thickness of wire reduce resistance /

more induced current.

Increase the strength of magnet increase the induce current

Curved magnet catapult field more stronge

Cylinder shaped iron core increase the strength of

electromagnet

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Force and motion

Most suitable is C

Characteristic Reason / Explanation

Spring constant is small More elastic

Density is small The spring is lighter

Elastic limit is high Elastic for a large range of fore /Can support the large force

The strength is high Can support the large force

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Radioisotopes

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