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The deluxe junior high school of province Qingdao City, Shandong solicits students to unify examination in 2005
The physics tries
(Originally try a full marks:100 cent, examination time:90 minutes)
Book(I) physical small knowledge(full marks 30 cents)
Single crest choice:please select right answer, and will answer a card of to black down in response to the options.
1.Following concerning physical concept of parlance in false BE:
A .The material is directly become gaseous process to call to sublimate C by the solid.The pressure that the object is subjected to on the unit area calls to press strong
B .The electric power which uses to consume inside the electric appliances l second calls electricity power D.The object temperature is more high.The calories of imply is more many
2 .In the following phenomenon what to belong to liquefaction BE:
A .The camphor ball in the trunk's leading a period of time will diminish C.In summer, the cold drink wall outside the cup appears small water bead
B .The ground becomes after rain dry D. In winter, river water freeze
3 .In the following phenomenon what to belong to a bare glint phenomenon BE:
A .Shadow C. Inclined insert aquatic chopsticks to see curved fold
B .The reflection on water D that the quiet lake noodles climb mountain.See outdoor scenery through the glass window
4 .Following what to convert the electric power as machine ability BE:
A .Generator B.Electric motor C.Fluorescent lamp D.Give or get an electric shock a hot cup
5 .Being false in following each diagram is:
6 .Following measure most the operation method of tool.False BE:
A .Shoulding steep glass to completely immerse while using the liquid temperature of the thermometer diagraph didn't in the liquid
B .Should regulate the horizontal Liang balance of weighing scales before use the weighing scales calls object quality
C .Use the graduated cylinder measures an aqueous physical volume and read that few points should take the surface cave form bottom as quasi-
D .Absolutely disallow to directly connect on the power supply while using electric voltage form two very up
7 .Electric power form is use to measure following which physical quantity of appearance:
A .Electric current B.Electric voltage C.Electric resistance D.Electric power
8 .Play on the river surface that a kid is freeze, suddenly discover that the ice of foot will soon break, he should adopt of measure BE:
A .Stand still C.At once leave, keep off the ice of foot
B .Change to an one foot to stand D right away.Immediately lie prone on the ice noodles also to move toward the near the bank
9 .Following physical knowledge associate by cook a meal, false BE:
A . Hold still the gravity which is subjected to in the level cup of the table's top and it to table's top of the pressure be a rightness of equilibrants
B .Follow the egg is toward the bowl ascend on touch, the egg broke, is the function which makes use of dint is mutual
C .Kneading beautiful lace on the steamed stuffed bun skin is the shape that the dint changed object
D .While splash water, the basin stays in hand, water because of inertial fly to go out
10 .A few electric lights establish, after connecting power supply, if an among those the light silk of the electric light broke, other parts of electric circuit didn't have occurrence breakdown, then rest electric light will:
A .Still bright B. Not bright C.Have of bright, the not bright D have. Can't judge
11 .The conductor wants to produce to respond electric current in the magnetic field, should satisfy:
A . A conductor exercises in the magnetic field
B . A conductor does parallel Ci feeling line sport in the magnetic field
C . A conductor does to incise Ci line sport in the magnetic field
D . Shut a conductor of match the electric circuit to do to incise Ci line sport in the magnetic field
12 . Being false in the following knowledge structure is:
13 .A, when B two classmates push table, do one many achievement, AN used a 3 mins, B used a 2 mins, then A, B is power all of the relations of achievement BE:
A . P A P B C.P A=P B D.Can't make sure
14 .Two give or get an electric shock hot silk R1, the R2 establish and connect in the electric circuit.Is shown as diagram, if the R be 1> R2s, the match which then is spark first BE:
A .The match of the electric stove silk R1
B .The electricity protects the match of the silk R2
C . Two give or get an electric shock the match of hot silk to be spark in the meantime
D .Can't make sure
1 5 .The density is a p, side's ising long is the exactly square body thing of the a piece, put in keeping the level crest noodles of the wodden post a Shu, the wodden post crest noodles is a side
Long is of exact square, wodden post crest the center of the noodles and exactly square body thing piece bottom but center by luck fit together.At this time exactly square body thing the piece presses to the wodden post crest noodles strong BE:
Book(â…¡ ) physical research group case(full marks 70 cents)
Pony, small piece, little Lee with you(small jade) is a thing in the class a research group now, underneath is several of your research case.
Topic a:the mirror(subject full marks 11 cents, total 3) of various each kind
1 . The group looked back a few important investigations first:
( L)investigation flat surface when the mirror become to be like, because the flat surface make be like, can't use up to hold to accept.For the sake of the position found out to be like, the pony replaces a flat surface mirror with the transparent glass, put a the fulcrum burning candle before glass, put another the same candle which sparked at the back of the glass and make it with spark the position of be like of candle.This calls in the physics etc. follow example of.
(2)Little Zhang Hui2 the agreeable convex lens become to be like as follows a contents and have a mistake among them.Please come out a false place turn, and correct in the form.
2, the pony discover that the shining surface of metals thumb tack can see into a kind of optical mirror which calls a convex noodles mirror, hence he to convex noodles mirror investigation as follows:
(1)when he uses to pay laser flashlight more to project light upon over against a convex noodles mirror, the circumstance is shown as diagram, it is thus clear that the convex noodles mirror have(fill "will gather"or" dissipate of") function to the ray.
(2)Pony design as follows the project study a convex noodles mirror to become of be like:
â‘  Device:transparent arc-shaped(ball hat form) glass, only hold, the length differently pays candle more
â‘¡ Step:at light up, put one fulcrum burning candle in transparent ex- some position of the arc-shaped glass, use up first to hold to carry on be like of accept;Then choose again another put at the back of the glass with the candle which is like length, with the position be like.The position which changes a candle does many experiments.The â‘¢ experiment is record as follows:
The candle leaves the distance of arc-shaped glass
Only hold ascend of be like
Be like of the empress of the glass
Very near
Have no
Contract
BE sign
Farther
Have no
Contract
BE sign
Very far
Have no
Contract
BE sign
(3)the pony get conclusion: convex noodles mirror can become, of be like.
3 .Ask the explanation reaches agreement to answer the following problem:
( L)little Lee use a f=the magnifier with 5 cms to observe the an in the map to order, can see the an order clear enlarge of be like.
He says that a point leaves anastigmatic distance is 5 cms.
His parlance inaccuracy, please come out a false place turn, and correct under at it.
(2)There is a convex lens and a flat surface mirror that the focal distance is a 3 cms inside black box, please draw light road in a black box diagram, and mark out a flat surface mirror a top the number of degrees of the angle of incidence.
The convex noodles mirror that can see in the â‘¢ daily life have: metals thumb tack noodles, .The main advantage of convex noodles mirror BE:the convex noodles mirror ratio flat surface mirror of same area observe of scope.
Topic two:the research once hot phenomenon(subject full marks 12 cent, total 5)
The group carries on the 200 g melt of ice experiment, picture as follows:
4 .Basis picture judgment, following parlance inaccuracy.Please come out a false place turn, and correct under at it:
( L)the crystal continuously absorbs calories while melt and the temperature continuously rises.
(2) When the C order, the material is a solid appearance.
5 .AB, in the DE segment, the temperature of water, inside ability.
6 .Please compute in the DE segment, the calories absorb by water.If the spirit lamp let out of calories' having 40% will be absorb by water, ask:the wine Shao in this process the light let out of calories is how much
7 .Please design an experiment and verify the accuracy of standpoint in"the member be hot athletic of the speed relate to temperature".Request:the synopsis write a process(contain a device) of experiment, phenomenon and conclusion.
8 .Blazing hot summer, four people go to Qingdao to float mountain to play.While climbing to barren summit of hill rock to up take a rest, a few mineral springs along with taken are all bask Wen Shui3.Everyone how wants to drink last and cool water!Thoughted of a way when little Zhang Yong4's towel wipe perspiration, everyone finally drank to ascend cool water!
( L)way: ;
(2) Truth: ;
Topic three:the research has something to do with dint phenomenon(subject full marks 15 cent, total 4)
9 .For the sake of the sport circumstance for research object to be free from dint, the group looked back vacuum whether transmit sound of investigation:
BE putting in the glass the cover in the alarm clock of bell, draw out the air in the cover gradually, make the glass cover inside of the air be more and more thin and diluted and the voice which discovers an alarm clock is more and more small.Predict further, be cover inside completely without air, voice will complete.
10 .Group compares an orotund research method and carried on as follows of experiment:
Little Lee lets into the small car with 5 Ns follow inclined plane from same height the freedom be slippery bottom, let it with same early speed v 0 exercise forward on the different flat surface, Be get as follows to test a record, have a not yet finished among them, please add in the form integrity:
Surface
Towel
Cotton
Wooden board
Friction
Biggest
Bigger
Minimum
Small car sport be apart from
Recent
Farther
The small car exercise time/s
4
6
8
The small car speed change
The speed is from the v 0 all change into 0< BRs>
(1)predict from here, be the friction is zero:00, small car at the level dint be subjected to on direction for, will do sport.
(2) The small piece is still from here anti- to predict:the small car is subjected to on the level direction of the friction be more big, the speed change more big.Her parlance inaccuracy, please come out a false place turn for her, and correct under at it.
11 . The pony uses a set the small car which jack up a heavy 5 Ns such as the diagram pulley.If take no account of to rub and the rope be heavy, please compute the following problem:
( 1)If don't account to move pulley weight, the cordage freely carries spring coil to measure dint to account of show a number is much big
(2)If consider moving pulley weight, the spring coil side dint accounts at this time of show a number is a 2.5 Ns, then should
The machine efficiency of pulley set is much big
(3)When move pulley total heavy exceed how much, use that to lift that small car no longer labor-saving
12 .The some spring coil measures dint to calculate the distance as 5 Ns, if thinks that measuring with it is heavy about is the heavy thing with 15 Ns, in response to how to measure an at hand existing pencil 1, the nail is 1, the wire is 1, please explain measure a method and it physical principle.(Don't account a device to hold with dignity with rub)
Topic four:have something to do with electric resistance problem(subject full marks 19 cent, total 5)
13, the group measures the electric resistance of small lamp bulb and design of have a mistake in the electric circuit diagram, please come out a false place turn, and correct on the original diagram.Then according to change exactly electric circuit diagram, will have no finished real object diagram a conjunction like.

14 .The usage corrects behind of test electric circuit to start experiment, the pony is acquire as follows of data:
If the diagram is the dial circumstance of electric voltage form in the first-time experiment, there aren't complete 2ses in the above-mentioned form, ask you fill in an integrity: at this time small lamp bulb of the electricity power is a W.
1 5 .The pony contains an electric circuit box, front-panel(as follows diagram 》 up is red, the green light is an one for each, two switch ses 1, s 2, an electric voltage form.Under the sistuation that don't open box, he lets a group other electric circuit structure in the box of the classmate investigation.For this, the small piece did to as follows test:
According to the experiment circumstance, please draw the electric circuit diagram of electric circuit inside a box in the underneath the square frame:
16 .Two electricity limit R1s, the R2 merge, if it the total electric resistance pleases according to Mu laws in Europe and merges the electric current of electric circuit for the R, electric voltage characteristics, certificate:
1 7 .The pony changes a glide of Ωs O-16 to Zu machine and electric current form,such as diagram A, to show a conjunction on the power supply with 6 Vs and shut to match a switch.Please compute the following problem:
( L)be slippery slice P to place in change Zu machine middle point, wait effect electric circuit,such as diagram B, to show at this time.The total electric resistance is much big in the electric circuit
(2)If the electric current form quantity distance is a 2 As, then when change the Zu machine be slippery slice the P glides between the AB, the variety scope of the Rap resistivity is how much
Topic five:investigate an our country western region slippery ascent mudslide silently condition(subject full marks 13 cent, total 3)
The last few years, western mudslide disaster in the region is multifarious.The group investigates to discover in 2003 6, that region take place slippery ascent mudslide 5, result in more than 50 persons' death and harm, more than 5000 persons' disaster, parts of houses, highways, the bridge is damaged.
The small piece is some production circumstances which investigated the region, detection as follows problem:
1 8 .From investigate data, the group found out a creation slippery ascent mudslide of reason:
Because the activities such as above-mentioned circumstance and circumstance etc.'s creation is many loose move of rock.The rock that these are loose to move after the slope ascend be subjected to downward push of the rain-storm or flood infliction dint, take place fall phenomenon.The pony drew rock on the slope of be subjected to dint sketch map, there aren't complete 2ses in the diagram, please repair a painting in the original diagram integrity.
19 .How avoid and manage mudslide just what group study be the dint which makes the rock fall and start to study mutually counter-effect dint now-Rub resistance.
( L)the group recalled before to the investigation of friction:
Measuring dint to account to follow a level direction to pull a wood piece with the spring coil, making some exercises on the different flat surface is get as follows to test a record;
If all exercise on the wooden board, pass on the wood piece to add Fa code to change to the pressure of horizontal plane, Be get as follows to test a record:
If the wood piece is subjected to the friction with 12.0 Ns in the towel surface, the wood piece then is a N to the pressure of towel surface at this time.(2)in the actual circumstance, the pressure be subjected to by slope is decide by gravity and slope Qing Cape of rock, can't change.Therefore, the rough degree that can pass change slope surface-Much plant trees on the slope, protect to plant a quilt to change friction resistance.invite you to make use of physics to study a medium model method, design an emulation to test to verify.
â‘  Experiment device:wooden board inclined plane(replace slope), several glass pawns.(generation material rock)Several nails.(replace tree)Towel(replace to plant a quilt), water, pipe line or watering can( replace flood or rain-storm].
The â‘¡ tests process;
a .Put first the pawn directly puts on the wooden board inclined plane, then follows inclined plane to from top to bottom hurtle water.Discover pawn drive very easily blunt descend inclined plane.
b.
.
20 .The group discusses further:
( L)many highways follow line to contain mudslide ditch, if mudslide explosion the car by luck passes by and the result will be so terrible we dare not think about it.Small set up to account 1 to report to the police device, as follows diagram.
The â‘  invites you the work process which introduce it for the small piece:
When the mudslide blunt Kua impedes a wall, the electromagnet electric circuit, electromagnet, iron piece, buzzer electric circuit, the buzzer sends out a caution voice and once warned road vehicle an attention.
â‘¡ Little Lee think.In the mountain because of mudslide, the windstorm south waits an output huge voice ring, will make the buzzer voice can't hear.Please carry on an improvement.
Improve a way:
(2)If the car need a 2 ses through a mudslide ditch, the mudslide speed is a 1 Om/s.Small piece think: want to promise vehicle of safety, Zu file should leaves highway at least 15 ms.
Her parlance is false.Please point out false place, and correct under at it.
(3)Be a high school student, we can't directly prevent°from and manage mudslide, in the reality the life for can make some beneficial, the affair of what lies in one's power to match with to prevent°from and manage a mudslide work, the group drafted a daily behavior treaty, among them have a problem and not agree with an establishment purpose of match that treaty.