Magnets
Force and Motion
Electricity
All That
100
Magnets have 2 poles? Name them
North and South
100
What is the definition of force
a push or pull on an object
100
What is the Law of Electrical Charge?
Things that have the same charge push each other away (they repel each other)things that have the opposite charge attract
+ - = attract
+ += repulsion - -=repulsion
100
True or False. Magnets interact with other magnets without touching.
True
200
Magnets are objects that attract ________.
iron
200
What is the definition of motion
change position of an object
200
Two electrically charged objects are shown in the picture below. What will happen to the two objects when they interact? (4.P.1.2)
A. The objects will repel and push away from each other.
B. The objects will move in the same direction.
C. The objects will not affect each other.
D. The objects will attract and pull toward each other.
D. The objects will attract and pull toward each other.
200
How is Earth like a magnet?
Because it has a North and South Pole
300
What is magnetism?
a force that can attract (pull closer) or repel (push away) objects
300
What is contact force?
happens when there is physical contact between two interacting objects
300
True or False. Neutrons and electrons have electric charge.
False
300
A large magnet is placed over a group of empty soda cans. What will happen when the magnet gets very close to the cans?
A. The labels will fall off the cans.
B. The cans will be filled with soda again.
C. The magnet will attract and pick up only the cans that contain iron.
D. The magnet will attract and pick up all the cans because they are metal.
C. The magnet will attract and pick up only the cans that contain iron.
400
What 3 metals are strongly attracted to magnets?
Iron, nickel and cobalt are the three main metals most strongly attracted to magnets
400
What is at a distant force?
when there is no physical contact between the two interacting objects
400
Two electrically charged objects are shown in the picture below. What will happen to the two objects when they interact? (4.P.1.2)
A. The objects will repel and push away from each other.
B. The objects will move in the same direction.
C. The objects will not affect each other.
D. The objects will attract and pull toward each other.
A. The objects will repel and push away from each other.
400
Magnets exert an unseen force that make some things move without touching. This invisible force is called a ______________.
magnetic force field.
500
Name 2 metals that are not magnetic?
Gold and Silver
500
The 6 are:
- normal force
- applied force
- frictional force
- tension force
- spring force
- resisting force
Which force refers to a force that is applied to an object such as when a person moves a piece of furniture across the room or pushes a button on the remote control.
500
Avery rubs a balloon on her hair. The balloon is now able to stick to the
wall. The balloon is an example of _____. (4.P.1.2)
A. an electrically charged object
B. a magnetic force
C. poles
D. iron
A. an electrically charged object
500
A metal ball has an electrical charge. What will happen when it is brought near another metal ball with the same electrical charge?
A. The two metal balls will be pulled toward each other.
B. The two metal balls will be pushed away from each other.
C. The two metal balls will touch and move in circles around each other.
D. The two metal balls will touch and remain connected with each other.
B. The two metal balls will be pushed away from each other.