Forces
a force is a ________ or a __________
push or a pull
What is motion?
The act of moving
Name the two poles of a magnet
North and South
Name 2 objects you can push
Answers vary
opposite poles of magnets will ____________
(attract or repel)
attract
A _______ is a force where an object is moving away from you
push
How fast something is moving is called __________
speed
repel
Name 2 objects you can pull
Answers vary
similar or like poles of a magnet will (attract or repel)
repel
a __________ is a force where an object moves towards you
pull
The path in which something travels is called __________
direction
A magnetic force which means to move TOWARDS each other
attract
Name two ways to make a magnetic force stronger
move magnets closer together
make magnets bigger
True or False
Electromagnets are not different from bar magnets
False
Electromagnets can be turned on and off
gravity
What stops or slows down motion?
friction
Magnets attract things that are made out of what type of metal
iron, nickel, cobalt, and steel
If you are unable to move a big object you need to apply _________ to move it
a. more direction
b. more force
c. less force
d. gravity
What are the two types of electric charges?
positive charge
negative charge
This force makes things move
(unbalanced force or balanced force)
unbalanced
What is one direction of motion?
possible answers: forward, backward, circular, back-and-forth (oscillatory)
The invisible space around a magnet is called a _____________
magnetic field
With this type of force there is no movement. It causes things to stay still.
Balanced or unbalanced
Balanced
The build up of charges on an object is called__________
static electricity