Show:
Frictional Force
Elastic-Spring Force
Gravitational Force
Magnetic Force
Mystery
100
friction is a force that opposes motion which means it is a force that _ _ _ _ _ _ _ _ _ _ _ _ _ motion
What is "fights against"?
100
Elastic spring force is created when we change the _ _ _ _ _ of something and it springs back to its original _ _ _ _ _.
What is "shape"?
100
Gravity is the only force in this UNIT that exerts only one kind of force.
What is a "pull"?
100
A magnetic "PULL" is called _ _ _ _ _ _ _ _ _ _ .
What is "attraction"?
100
It is measured by kilograms?
What is mass?
200
Friction can cause _ _ _ _.
What is heat?
200
It can be stretched to create elastic spring force, and it is used to hold things together.
What is an "elastic" or a "rubber band"?
200
The more the _ _ _ _, the more the gravitational force.
What is "mass"?
200
A magnetic "PUSH" is called _ _ _ _ _ _ _ _ _ .
What is "repulsion"?
200
It is measured by Newtons.
What is weight?
300
Friction is _ _ _ _ _ _ for making fire.
What is "useful"?
300
It works in a ball point pen to create elastic spring force.
What is a spring?
300
The greater the _ _ _ _ _ _ _ _ , the weaker the gravitational force.
What is "distance"?
300
The ends of the magnets are called this: ____________.
What are "poles"?
300
Weight is a ______________.
What is a "force"?
400
Friction is _ _ _ _ _ _ _ when machine parts rub against each other to produce too much heat.
What is "harmful"?
400
When we PULL something elastic, it is called _ _ _ _ _ _ _ _ _ .
What is "extension"?
400
Gravity can be our _ _ _ _ _ _, to keep us from floating into space.
What is "friend"?
400
Magnets are attracted to each other and this material: _ _ _ _.
What is "iron"?
400
Mass is NOT a ____________.
What is a force?
500
We can use these 3 things to overcome friction.
What are "lubricants" , "rollers" , "wheels".
500
When we PUSH something to create elastic spring force, we _ _ _ _ _ _ _ _ it.
What is "compress"?
500
Gravity can be our _ _ _ _ _ when we fall down and get hurt or die.
What is "enemy"?
500
Magnetic Force can be useful for a _ _ _ _ _ by creating 0 friction.
What is a "train" or a "magnetic train"?
500
Weight can _ _ _ _ _ but Mass never can _ _ _ _ _ (unless we eat or we get cut in half, or something like that).
What is "change"?