1.单选题- (共9题)



A.甲、乙两质点的运动方向相同 |
B.甲质点做直线运动,乙质点做曲线运动 |
C.![]() |
D.0~![]() |
A.速度是表示物体运动的快慢的物理量,既有大小,又有方向,是矢量 |
B.平均速度就是初、末速度的平均值,它只有大小,没有方向,是标量 |
C.运动物体在某一时刻或某一位置的速度,叫做瞬时速度,它是标量 |
D.汽车上的速度计是用来测量汽车平均速度大小的仪器 |

A.前5 s质点静止 |
B.10 s末质点的速度为3 m/s |
C.0~15 s内质点的平均速度为3.5 m/s |
D.5~15 s内质点做匀加速运动,加速度为0.3 m/s2 |

A.![]() |
B.![]() |
C.![]() |
D.![]() |

A.受竖直向下的重力、垂直斜面向上的支持力 |
B.受竖直向重力、沿斜面向下的下滑力、垂直斜面向上的支持力 |
C.受竖直向下的重力、垂直斜面向上的弹力、沿斜面向上的摩擦力 |
D.受竖直向下的重力、垂直斜面向上的弹力、沿斜面向下的下滑力、沿斜面向上的摩擦力 |
A.只有一个物体也能产生力的作用 |
B.受力物体必定也是施力物体 |
C.只有直接接触的物体间才有力的作用 |
D.鸡蛋碰石头鸡蛋破,因为石头对鸡蛋的力大于鸡蛋对石头的力 |
A.![]() | B.![]() | C.![]() | D.![]() |
2.选择题- (共4题)
Gabi Rizea only discovered his talent for woodcarving three years ago, and has since put{#blank#}1{#/blank#} to good use, saving dozens of old tree stumps (树桩) from {#blank#}2{#/blank#} (remove) by turning them into impressive works of art.
Rizea became a woodcarver{#blank#}3{#/blank#} (complete) by accident. Three years ago, after buying himself a new chainsaw (链锯), he{#blank#}4{#/blank#} (start) “playing” with it on a block of wood. He tried carving a human face into the wood, and to his surprise, it turned out pretty good. Today, he is so good at woodcarving that his home city allows him to work his magic on old tree stumps and so far about 40 works of art{#blank#}5{#/blank#}(create) in the local parks.
“In 99% of the cases, the wood just doesn't match my ideas,” he said in an interview. “I first have to remove all the rotten parts, and sometimes{#blank#}6{#/blank#} is left isn't enough for my designs.”
Following his recent rise to fame, Rizea has been asked by many{#blank#}7{#/blank#} (city), including the capital of Romania to transform their old tree trunks {#blank#}8{#/blank#} works of art. He promised to honor their requests, but he will never repeat any of the artworks{#blank#}9{#/blank#} (find) in his home city.
In spite of his obvious talent, the Romanian {#blank#}10{#/blank#} (art) recently got into art school in order to fully master woodcarving.
3.多选题- (共3题)
A.物体 B 的速度可能在减小 | B.物体 B 的速度变化比 A 的速度变化快 |
C.物体 A 的速度一定在增加 | D.物体 A 的加速度比 B 的加速度大 |
A.挂在电线下的电灯受到向上的拉力,是因为电线发生微小形变产生的 |
B.绳对物体的拉力方向总是沿绳方向的,但可以不指向绳收缩的方向 |
C.木块放到桌面上受向上的弹力,是由于木块发生微小形变产生的 |
D.弹簧的弹力方向总是沿弹簧方向,但可以沿弹簧向外 |
4.解答题- (共4题)
(1)乙车追上甲车之前,两车之间的最大距离xm;
(2)经过多少时间t,乙车追上甲车?
(1)该物体经多长时间落到地面?
(2)落地前的最后 1s 的初速度是多少?
(3)在落地前最后 1s 内通过的高度是多少?

(1)力的大小;
(2)地面间的动摩擦因数μ.

(1)轻绳OA、OB受到的拉力是多大;
(2)若物体乙的质量m2=5kg,物体乙与水平面之间的动摩擦因数为μ=0.3,则欲使物体乙在水平面上不滑动,物体甲的质量m1最大不能超过多少?
5.实验题- (共1题)
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【1】题量占比
单选题:(9道)
选择题:(4道)
多选题:(3道)
解答题:(4道)
实验题:(1道)
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【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:4
7星难题:0
8星难题:8
9星难题:4