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Worksheets科学：力
Total questions: 10
Worksheet time: 5mins
什么是力？
What is the meaning of force?
拉力施加在物体上
The pulling effect of an object
推力施加在物体上
The pushing effect of an object
推力和拉里施加在物体上
The pulling and pushing effect of an object
物体的移动而产生一种力量
哪项显示活动涉及推力？
Which of the following activities involves a pushing force?
上图显示一个男人正在进行活动。
Diagram above shows a man carrying out an activity.
什么力涉及这个活动？
What is the force involved in this activity?
推力 Pulling force
拉力 Pushing force
地心引力 Gravity force
压缩力 Compressing force
哪项的活动涉及拉力和推力？
Which of the following activities involves pushing and pulling forces?
打排球 Playing volleyball
放风筝 Flying a kite
推轮椅 Pushing a wheelchair
为自行车的轮胎填气 Pumping bicycle tyres
上图显示 球员在踢球。
Diagram above shows a player is kicking a ball.
当球被踢后， 球涉及什么力使球移动？、
What makes the ball move after being kicked?
脚力 Leg force
推力 Pushing force
拉力 Pulling force
摩擦力 Frictional force
下列哪项活动涉及力能改变物体的形状？
Which of the following actions of force causes a change in shape?
在操场骑自行车 Cycling in the field
球在地板上滚动 Rolling a ball on the floor
划船 Rowing a boat
吹气球 Blowing a balloon
如果一件物体涉及力，物体将是什么情况？
What will happen if an object is acted on by a force?
物体的质量将会增加 The object will become heavier
物体的质量将会减少 The object will become lighter
物体的速度将会减少 The object will move slowly
物体 的颜色会改变 The object will change colour
下列哪项活动显示力能改变物体的形状？
Which of the following shows that a force can change the shape of an object?
上图显示球在移动。
Diagram above shows that a ball is moving.
如果球员从相反的方向踢那个球， 球将是什么情况？
What will happen if a player kicks the ball form the opposite direction?
球j将会静止 The ball will stop
球将会改变形状 The ball will change its shape
球将会慢慢地移动 The ball will move slowly
球将会改变移动的方向
The ball will change its direction of movement
什么是摩擦力？
What is the meant by frictional force?
一种力涉及阻碍物体的移动
An effort to resist movement
一种力涉及改变物体
A force to change an object
一种力涉及当两个物体的表面互相接触时所产生的阻碍物体移动
The force produced when two surfaces are in contact with each other
推力和拉力施加在物体上
Pulling and pushing that is applied on an object
