1.单选题- (共2题)
1.
如图所示,曲面AO是一段半径为2m的光滑圆弧面,圆弧与水平面相切于O点,AO弧长10cm.现将一小球先后从曲面的顶端A和AO弧的中点B由静止释放,到达底端O的速度分别为v1和v2,所经历的时间分别是t1和t2,那么()


A.v1>v2,t1>t2 |
B.v1=v2, t1>t2 |
C.v1>v2,t1=t2 |
D.v1=v2, t1=t2 |
2.选择题- (共5题)
5.
从b栏中找出与a栏中相对应的答语。
a | b |
Can I help you?{#blank#}1{#/blank#} | B. The same to you. |
When is his birthday?{#blank#}2{#/blank#} | C. I don't know. |
Happy New Year!{#blank#}3{#/blank#} | D. No, I can't. |
Do you have a tennis racket?{#blank#}4{#/blank#} | E. No, I don't. |
Can you play chess?{#blank#}5{#/blank#} | F. That sounds great. |
Are these your parents?{#blank#}6{#/blank#} | G. It's fifteen dollars. |
Does Gina like comedies?{#blank#}7{#/blank#} | H. History. |
How much is the blue sweater?{#blank#}8{#/blank#} | I. May, 5th. |
What is your favorite subject?{#blank#}9{#/blank#} | J. No, they are my uncle and aunt. |
Let's play soccer ball.{#blank#}10{#/blank#} | A. Yes, please. |
6.
从b栏中找出与a栏中相对应的答语。
a | b |
Can I help you?{#blank#}1{#/blank#} | B. The same to you. |
When is his birthday?{#blank#}2{#/blank#} | C. I don't know. |
Happy New Year!{#blank#}3{#/blank#} | D. No, I can't. |
Do you have a tennis racket?{#blank#}4{#/blank#} | E. No, I don't. |
Can you play chess?{#blank#}5{#/blank#} | F. That sounds great. |
Are these your parents?{#blank#}6{#/blank#} | G. It's fifteen dollars. |
Does Gina like comedies?{#blank#}7{#/blank#} | H. History. |
How much is the blue sweater?{#blank#}8{#/blank#} | I. May, 5th. |
What is your favorite subject?{#blank#}9{#/blank#} | J. No, they are my uncle and aunt. |
Let's play soccer ball.{#blank#}10{#/blank#} | A. Yes, please. |
3.多选题- (共3题)
8.
如图所示为一弹簧振子的振动图象,在0~0.8 s 时间内,下列说法正确的是


A.振子在0和0.8 s时刻有正向最大速度 |
B.振子在0.2 s时刻有最大加速度 |
C.0至0.4 s振子加速度始终指向负方向 |
D.在0.2 s至0.4 s时间内,加速度方向和速度方向相同 |
9.
一弹簧振子做简谐运动,O为平衡位置,当它经过O点时开始计时,经过0.4 s,第一次到达
点,再经过0.2 s第二次到达
点,则弹簧振子的周期为


A.0.67 s | B.1.67 s | C.2.0 s | D.2.4 s |
10.
一列简谐横波沿x轴方向传播,某时刻的波形如图5所示,a、b、c为三个质点,a正向上运动。由此可知


A.该波沿x轴正方向传播 |
B.c正向下运动 |
C.该时刻以后,b比c先到达平衡位置 |
D.该时刻以后,b比c先到达离平衡位置最远处 |
4.填空题- (共1题)
11.
.在均匀介质中选取平衡位置在同一直线上的9个质点,相邻两质点的距离均为
,如图11(a)所示,一列横波沿该直线向右传播,
时到达质点1,质点1开始向下运动,经过时间
第一次出现如图11(b)所示的波形.则该波的周期为 ,波速为 。




5.解答题- (共2题)
12.
渔船常利用超声波来探测远处鱼群的方位.已知某超声波频率为1.0×105Hz,某时刻该超声波在水中传播的波动图像如图所示.

(1)从该时刻开始计时,画出x=7.5×10-3 m处质点做简谐运动的振动图像(至少一个周期).
(2)现测得超声波信号从渔船到鱼群往返一次所用时间为4 s,求鱼群与渔船间的距离(忽略船和鱼群的运动).

(1)从该时刻开始计时,画出x=7.5×10-3 m处质点做简谐运动的振动图像(至少一个周期).
(2)现测得超声波信号从渔船到鱼群往返一次所用时间为4 s,求鱼群与渔船间的距离(忽略船和鱼群的运动).
6.实验题- (共1题)
试卷分析
-
【1】题量占比
单选题:(2道)
选择题:(5道)
多选题:(3道)
填空题:(1道)
解答题:(2道)
实验题:(1道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:1
5星难题:0
6星难题:3
7星难题:0
8星难题:5
9星难题:0