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Match Germany border school Academic Year 2000-2001 descend a mid-term period examination to try
Grade one physics in the senior high school tries
Explain: (1)Originally try for an examination time, always divide for 100 minutes 100 cent.
(2)The gravity acceleration g unifies to take a 10 ms/ s 2.
(3)Two additional is total 20 cent, account to go into total cent.
A, the subject is total 15, each small 2 cent, total 30 cent, in the each small four optionses for giving, only 1 are correct.
1.The object evenly and soon and straightly exercising:
A.Kinetic energy, the momentums all constant B.Kinetic energy, the momentums all change
C.Kinetic energy variety, the momentum constant D.The kinetic energy is constant, the momentum change
2.The quality is the object with 1 kg, from 0. 2 m eminence from static beginning whereabouts, the air resistance doesn't account, the object falls a ground of kinetic energy is:
A. 0. 2 J B.1 J C.2 J D.3 J
3. BE leaving a ground of height as 2 ms, quality for the small ball with 2 kgs with must the early speed level throw, then
Small ball the gravity does from throw to get to the process for fall to the ground of achievement BE:
A.10J B.20J C.30J D.40J
4.Keep one object throws upward with the some speed Shu, in the process of rise in, kinetic energy and gravity of object certainly the variety circumstance of ability is:
A.Kinetic energy increment, the gravity certainly can let up B.The kinetic energy let up, the gravity certainly can increase
C.Kinetic energy and gravity certainly can all let up D.Kinetic energy and gravity certainly can all increase
5.For do evenly and soon the object of circumference sport, what following and physical quantity change BE:
A.Line speed B.Cape speed C. Velocity D.Period
6.Car's highway in the level evenly and soon and straightly exercises, drive the speed as 18 meters/ per second, its exportation power is
36 kilowatts, then the resistance be subjected to by car BE:
A.2000N B.3000N C.4000N D.5000N
7.The quality is the object with 2 kgs to start free whereabouts from the quiet, don't account air resistance, at 3 end gravities to
The object does the moment power of achievement BE:
A.150W B.300W C.60W D.600W
8.Use Heng dint F to make the quality as the object with 10 kgs with the speed of the 2 ms/s evenly and soon the Shu be straight up to rise, don't account air resistance and so the Heng dint in the 2 ses F do an achievement: A.80J B.200J C.400J D.480J
9.In being apart from the ground Gao as H table's top, with speed V the level throw a quality for m small ball, when the A which is small ball to exercise to be apart from the ground Gao as h order, the following parlance is correct BE:(neglect to exercise process of air resistance)
A.The machine ability that the object orders in the AN is
B.The machine ability that the object orders in the AN is
C.The kinetic energy that the object orders in the AN is
D.The kinetic energy that the object orders in the AN is
10.Two cars drive in the same level road noodles north bound, the ratio of their qualities is a m 1:m 2=1:2,
The ratio of speed is a V1: V 2=2:1.When the car nasty brake after, A, B two cars skid most
The big distance is S1 and S2, two the friction factor of the move of cars and road noodleseses homology, don't account air resistance, then:
A.S1 :S2 = 1 :2 B.S1 :S2 = 1 :1
C.S1 :S2 = 2 :1 D.S1 :S2 = 4 :1
11. A quality is a m wood piece under the function of the level Heng dint F, from quiet the beginning exercise on the smooth horizontal plane and pull the achievement that the dint do in the process time the t process for:
A. B. C. D.
12.The derrick Shu keeps upward process of bring up the goods in:
Gravity certainly the ability must increase and the machine's ability must let up;
B.Gravity certainly the ability must let up, the machine's ability must increase;
Gravity certainly the ability must let up;The machine ability must let up;
D.Gravity certainly the ability must increase, the machine's ability must increase
13.One personal station keeps three ball Shus to throw upward respectively by same velocity on the veranda and the Shu keeps to throw downward and the level throws, don't account air resistance.Then speed size for three balls to fall to the ground:
A.Up throw biggest B of ball, descend to throw biggest C of ball, even throw biggest D of ball, three balls are similar big
14.The quality fastens in the Shu keep the flat surface to do circumference sport with a cordage for the m small ball, the small ball pass
Apogee pull cordage dint to 0, the length of string is a r, then small ball at apogee of speed is:
A, B, C, D,
15.The artificial earth satellite rounds the Earth to make evenly and soon circumference sport, the orbit radius is more small:
A.The speed is more small, the period more small B.The speed is more small, the period is more big
C.The speed is more big, the period more small D.The speed is more big, the period is more big
Two, the subject is total 6, each small 3 cent, total 18 cent.1 are correct at least in the each small give of four optionses.Each small, all choose rightness of get 3 cent, choose a rightness but not whole of get 1 cent, choose wrong of get 0 cent.
16.The ratio of two qualities of objects is a m 1:m 2=1:2, velocity of the ratio is a v 1:v 2=4:1, then the kinetic energy and momentum of two objects of ratio is:
A.EK1:EK2 =4 :1 B.EK1:EK2 = 8 :1
C.P1:P2 =2 :1 D. P1:P2 = 4 :1
17.In the underneath enumerate of each solid example, in addition to A, all don't account air resistance, which circumstances machine abilities guard Heng
A.Bail out the member takes to open of the parachute is evenly and soon up in the air whereabouts;
B.The hand grenade which throws make inclined throw sport;
C.Pull an object along the smooth inclined plane evenly and soon rises;
D.The small ball follows smooth inclined plane to freely fall
18.Is shown as diagram to a leather belt to spread to move device, the radius of right round is a r, the an is it 1:00 on the edge.The radius of left round is 2 rs.The c orders on the left round and arrive a left round the distance of the center to order for the r.a with the b order respectively an edge of Be located on the right round and left round up.If in the process of spreading to move in, the leather belt doesn't beat slippery.Then:
A. The an orders the line speed which orders with b size equal
B. The b orders the Cape speed which orders with c size equal
C. The an orders to order with b of the centripetal cceleration size be equal
D. The b orders to order with c of the centripetal cceleration size be equal
19.The quality is a m slippery piece, along the Gao is a h, long evenly and soon fall for the L rough inclined plane, in slipperily the piece from the inclined plane top slipperily go to the bottom carry of the process:
Gravity to slippery piece do of achievement is mgh
Support dint the achievement for do to the slippery piece for 0< BRs>
The slippery piece overcomes the achievement that the friction do for-mgh
Match outside dint to the object do of the achievement is a mgh
20. Concerning centripetal acceleration of two formulas with of in the following parlance, correct BE:
A.Line speed when the V be certain, the size of centripetal acceleration becomes inverse ratio with radius r
B.Line speed when the V be certain, the size of centripetal acceleration becomes a direct proportion with radius r
C.Cape speed when the ω be certain, the size of centripetal acceleration becomes inverse ratio with radius r
D.Cape speed when the ω be certain, the size of centripetal acceleration becomes a direct proportion with radius r
21. The small flat panel car B holds still on the smooth horizontal plane, at it left carry to have another object A to fly up a car by the level early speed V0 of left carry.Because of A, the B existence rub, as a result AN after the B ascend skid, the A starts in to evenly decelerate sport, the B starts evenly accelerating sport and establish a B car enough long, the B speed then attains biggest, should appear at:
A speed minimum hour
A, B speed equal hour
When AN and B were opposite to hold still
When B car started evenly and soon and straightly exercising
Match Germany border school Academic Year 2000-2001 descend a mid-term period examination to try
Grade one physics in the senior high school tries to answer a card
(Originally try for an examination time, always divide for 100 minutes 100 cent)
A, total 30 cents, each 2 cent.
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Score
Answer
Two, total 18 cent, all choose to each one get 3 cent, choose a rightness but not whole of get 1 cent, choose wrong or much choose 0 cent.
Number
16
17
18
19
20
21
Divide a number
Answer
Three, fill blank
22.The Earth synchronous satellite rounds the Cape speed of the Earth revolution around sun ω 1 rotate with the Earth of Cape speed ω 2 it ratio is;The second hand of machine form does evenly and soon the Cape speed radian/ second of circumference sport.
23 .A quality is upward a m object, keep by speed v Shu to throw, the object is in the process of rise in, the air resistance doesn't account, the object then can arrive of biggest height is, person to the achievement that the object do is.
24.On the smooth horizontal plane, the quality is the object with 4 kgs, inclined get down the Heng with 12 Ns certainly pushes under the dint function follow the level direction move a 6 ms and then push the achievement that the dint do as J.
25.Is shown as diagram, rope of on carrying to fix, another on carrying to link a quality as the small ball with 1 kg, the length of fine thread is 0. 8m.While pulling the fine thread to the level position, the small ball has no beginning to soon release, the small ball then passes by a little bit lowest, the speed size of small ball is m/ s, string is pulled the dint size as N.(The air resistance doesn't account)
26.The quality is 3,000 gram object As to hold still on the smooth level table's top, another quality's ising 1,000 gram object Bs is collide with each other with level speed and object AN of 4.0 meters/ per second, collision after object B with the speed of 2.0 meters/ per second anti- to bounce, then two ball collision after the speed size of B ball is for the m/s collide with each other in the process lose of ability machine ability BE____burnt.
Four, experiment. The subject is total 3, total 12 cents, get empty each time 2 cent.
In"the momentum in the collision guard Heng" the experiment:
27.The desire makes to go in to shoot small ball to can make even throw sport, to make while fixing inclined slot.
28.Go into quality m of shoot the ball 1 is touched the quality m of ball 2, go into radius r of shoot the ball 1 is touched the radius r of ball 2.(Fill big in, equal, small in)
29.A certain test the trace which records on the paper to is shown as diagram.Then go in to shoot small ball before touch of equally fall a point is an order of paper, after touch go into shoot equally fall of the small ball a point to order, is touched equally fall of the small ball to order is to order.
Five, calculation:the subject be total 20 cents, 3 small, the solution wants to write a writing of necessity to explain, sketch map, equation, important calculation step.
30. (6 cent)someone with early speed v 0=2 ms/s quality for the m small ball Shu keep to throw downward, the speed for small ball to fall to the ground is a V=4 ms/s, beg small ball just drive next throw leave the high h of ground.
31.(7 cent)the quality is a m=the object with 2 kgs, at size is under the level Heng dint F function with 40 Ns, from quiet the beginning evenly speeds up on the horizontal plane, have already known the friction factor of the move of object and level ground μ =0.2, beg to pull dint to do the moment power(g=10 ms/s 2) of achievement in 2 ends
F
32. (7 cent) the quality is a M wood piece, hold still on the smooth horizontal plane, existing one quality is M, speed for v 0 shoot of bullet levelses make the wood piece exercise on the horizontal plane into the wood piece, bullet after the wood go deep into be apart from d inside piece and the wood piece be opposite static, and stay in the wood piece.Establish bullet the dint Heng get difficulty to settle constantly in the wood piece, beg:
(1)The speed V which together exercise together of bullet and wood piece=
(2)The bullet shoots into the process of wood piece d, the wooden board skids on the ground of move S=

Five, add to try:the subject be total 20 cents, 2 small, the solution wants to write a writing of necessity to explain, sketch map, equation, important calculation step.
33.(10 cent)once one light pole carry to fix one quality as m small ball, with another a carry O for center of a circle, make the small ball do radius to exercise for the R circumference in the Shu keep the flat surface, small ball lead apogee, the light pole is contrary to the gravity direction that function dint and small ball of small ball be subjected to and the size beg for the mg/3:
Small ball at apogee of speed size
Small ball at a little bit lowest the light pole pull small ball dint to have another greatly
34.(10 cent)have already known that a ground of radius is a R, the Earth rotates Cape speed is, the Earth surface of gravity acceleration is g, then the sky in equator, an opposite ground hold still of the synchronous communications satellite leave the height of ground for how much(use have already known that the quantity mean)

Make a piece of rock throw inclined from the certain height upward, the speed size for rock to fall to the ground relates to following those factorses:
A.The quality B of piece of stone.Speed size for piece of stone to throw
C.Speed direction(throw angle of shoot the hour) for piece of stone to throw D.Height for piece of stone to throw
a
v
A
h
H
b
c
r
2r
r
F
h
L
B
A
V
600
d
S
m
M
O
O
.
O
M
P
N
.
.
.
.
'