Forces
What is the definition of a non-touching force?
A push or a pull between 2 objects that are not touching.
Gravity acts between an object and ______?
Earth
Name 2 objects that attract.
2 magnets or a magnet on some kinds of metal.
What does balanced forces mean?
2 forces of equal strength acting on 1 object.
Name 2 non-touching forces.
Magnetic force and gravity.
What is the definition of Gravity?
A non-touching pulling force between an object and Earth.
Name 2 objects that repel.
2 magnets.
North and North poles or South and South poles
What happens if forces are unbalanced?
An object will move.
What is the definition of a touching force.
A push or a pull between objects that are touching.
Is gravity a push or a pull?
Pull
What poles attract?
North and South or South and North
If gravity is pulling on a paper clip and there is a magnetic force of equal strength pulling the paperclip up. What happens to the paperclip?
It will float.
Name a force that can be turned on or off.
Electromagnetic force
What objects does gravity act on?
All objects.
What poles repel?
North and North or South and South.
If a bridge has a stronger force of gravity and a weaker force pulling it up what will happen?
The bridge will fall.
Why does the train change from floating to falling?
Because the electromagnet was turned off so only gravity was acting on it.
Why does the train fall?
The train falls because gravity is pulling it down.
What is an electromagnetic force?
A magnet that can be turned on or off.
Why does the train float?
The train floats because there are balanced forces of equal strength acting on it. Gravity and a magnetic force.