以下哪项没有速度?

六年级科学练习(力、摩擦力、速度)

Quiz
•
Science
•
1st Grade
•
Medium
CHOI Moe
Used 535+ times
FREE Resource
13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
奔跑中的鹿
行驶中的汽车
正在滚动的轮子
在树上休息的小鸟
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一个汽车司机需要两个小时才能抵达长达160km的目的地。该汽车司机驾驶的速度是多少?
60km/j
80km/j
90km/j
120km/j
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
林先生在9:30 a.m. 从 P城市出发前往T城市。整个路程以70km/h 的速度驾驶汽车。他将在什么时刻抵达T城市?
10:30 a.m.
11:30 a.m.
12:30 p.m.
1:30 p.m.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
根据上图,以下哪项说明是正确的?
力会改变物体的形状
力会使静止的物体移动
力会改变物体移动的速度
力会改变物体移动的方向
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下那个情况和摩擦力的效应有关?
电路中的灯泡发亮
橡皮的体积逐渐变小
墙上的壁钟突然掉下来
充满空气的气球突然爆炸
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是摩擦力?
阻碍物体移动的力
推动静止不动的物体的力
使移动的物体静止不动的拉力
施加在正在移动的物体上的推力
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
计算该汽车的行驶速度。
70km/j
75km/j
80km/j
85km/j
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