Which are the effects on bodies when force es applied? (3)
1. It can change the shape
2. Change the direction
3. Change the speed
Talking about friction... What is the difference between smooth and rough surfaces?
Smooth surfaces (little friction)
Rough surfaces (a lot of friction)
Define the magnetic force.
It is a non-contact force. When a magnet is near certain objects it attracts them
When do we use force?
We use it to slow down, speed up, stop or change the direction of a moving object.
What gravity is
-Attracts the objects to the ground
-Gravity is the force by which our planet Earth pulls objects towards its center
Define force
is the interaction between two or more objects. We use force to pull and to push.
Give an example of friction
answers may vary
What is friction?
Friction is the interaction between bodies that are in contact
Magnetic Force can repel. Explain this statement.
A magnet has a Norte Pole and a South Pole.When we hace N N or S S The magnetic force in this case causes repulsion, because the magnets do not come together.
Give an example of gravity
answers may vary
Define the non-contact force
the body making the force is not in physical contact with the object that receives it.
Define contact force
the body making the force is in physical contact with the object receiving the force
Which are the 2 types of forces?
Contact and non-contact force
Magnetic Force can attract. Explain this statement.
When we have N S or S N: the magnetic force in this case causes attraction, because the magnets come together.
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