Force Detectives
What is a force?
A push or a pull
Is kicking a soccer ball a push or a pull?
Push
What is an object called that can attract certain materials without touching them?
A magnet
What does it mean when two magnets attract?
They pull towards eachother
True or False: Every force requires two objects to touch
False
What can happen when a force acts on an object?
The object can start moving, stop moving, slow down, or change direction.
Is opening a drawer handle a push or a pull?
Pull
Name one material that magnets can attract
Iron or steel (metal)
What does it mean when two magnets repel?
They push away from eachother
What is the name of the force that allows magnets to pull certain objects towards them?
Magnetic force
What must happen for an object at rest to start moving?
A force must act on it
Name one example of a force that can make an object stop moving
Will a magnet attract a wooden block? Why or why not?
No. Wood is not a material that magnets attract
What happens when the north pole of one magnet faces the south pole of another?
They attract
A magnet attracts a paper clip from across a desk. What evidence shows that a force is acting?
The paper clip moves toward the magnet even though they are not touching
A toy car is sitting still. Someone pushes it and rolls forward. What caused the car to move?
A student pushes a box, but the box does not move. Does that mean the student did not use a force? Explain.
No, the student still applied a force
A magnet moves a metal paper clip without touching it. What does this tell us about magnetic force?
Magnetic force can act on objects without touching
What happens when the north pole of one magnet faces the north pole of another?
They repel
Two magnets are placed near eachother. Sometimes they pull together and sometimes they push apart. What determines whether they attract or repel?
Which poles are facing each other.