六年级科学速度

下列哪项没有速度？

Which of the following living things have speed?

• 站立的小孩 Small kid who is standing still

• 走路的行人 Pedestrian who is walking

• 正在飞行的小鸟 Small bird that is flying

• 在海上航行的轮船 Ship which is sailing in the sea

哪项是速度的定义？

What is the meaning of speed?

• 物体移动的远的程度

  How far an object moves

• 物体移动长的程度

  How long an object moves

• 物体移动快慢的程度

  How slow or fast an object moves

• 物体大小的程度

  How big or small an object is

下列哪项的说明关于速度是正确的？

Which of the following statements about speed is correct?

• 全部的 物体都有速度

  All objects have speed

• 静止的物体是没有速度的

  Objects that are not moving do not have speed

• 物体移动得快， 比较迟抵达目的地

  A faster object arrives later at its destination

• 物体移动得快需要更多的时间抵达目的地

  A faster object needs more time to reach its destination

一位司机驾驶速度是 80km/h ( 公里/ 小时)

A driver is driving at a speed of 80 km/ h.

当司机看到在路旁的交通标志如上图显示的，司机应该怎么做?

What should the driver do when he sees the road sign shown in diagram above?

• 减少速度 Reduce the speed

• 增加速度 Increase the speed

• 保持速度 Maintain the speed

• 把车停泊在路旁 Stop his car on the roadside

李先生在 20分钟内行驶了 35 公里的距离。 计算李先生的驾驶速度。

Mr Lee takes 20 minutes to drive on distance which is 35 km away. What is the speed of his car?

• 95 km/j

• 85 km/j

• 105 km/j

• 115 km/j

下表显示四个运动员完成100米自由泳所需的时间。

Table above shows 4 swimmers take the time to complete 100 m freestyle .

从速度最快的运动家到最慢的运动员，以下哪项是正确的的排列？

Choose the correct sequence starting form the fastest speed to the slowest speed.

• W、Y、Z 、X

• X、Z、Y 、W

• Y、Z、X 、W

• Z、X、W 、Y

下图显示一辆电动玩具车绕着100厘米的跑道移动。

Diagram above shows a control car moves around the race track which the length is 100 cm .

电动玩具车的速度是 20 厘米/秒。 30 秒后，电动车移动了几圈？

The speed of the control car is 20 cm/s. How many round does the control car move after 30 second?

• 2

• 4

• 6

• 8

图上显示 P、Q、R 和 S 汽车的驾驶速度比较。

Diagram above shows that the comparison of the speed for car P, Q, R and S.

下列那个图表能显示上图的资料？

Which of the following graphs match to the information on diagram above ?

• 
• 
• 
• 

上表显示P、Q、R和 S 四辆汽车在一小时内所行驶的距离。

Table above shows the distance travelled by for cars P, Q, R and S in one hour.

哪辆汽车移动的速度最快？

Which cars move the fastest?

• P

• Q

• R

• S

一组学生想要确定豹奔跑地速度。最适合用来计算该速度的单位是......

A group of students want to make sure that the speed of leopard runs. The suitable standard units for its speed is .....

• 厘米/秒 cm/ s

• 米/秒 m/s

• 米/分钟 m/m

• 公里/小时 km/h