Science
Vocabulary
Vocabulary
A force that pulls objects towards Earth's surface
What is gravity
Something that keeps repeating
What is a pattern?
What causes objects to change in motion, direction, or speed
What is a force?
How do magnets attract each other?
What are opposite poles?
What makes magnets repel each other?
What are the same poles?
Reduces friction
What is a lubricant?
To say something is going to happen
What is predict?
What kind of forces are acting on you right now?
What is gravity, pushes and pulls
a force that can push or pull without touching
What is magnetism?
Force that gets a train to move.
What is a powerful pushing or pulling force.
A force that occurs between 2 surfaces that are touching.
Ex. rubbing your hands together
What is friction?
A push or a pull
What is a force?
Type of forces acting on an object that is not moving
What are balanced forces?
What do maglev trains ride smoother
What is reduced friction?
Who builds machines or parts to create or improve ways to make work easier.
What is an engineer?
A push or a pull between two objects that are touching each other.
What is contact force?
The process of an objects changing position
What is motion?
things attacked to a magnet
What are certain metals, and other magnets?
An object that is moving has this type of force.
What are unbalanced forces?
Magnets are used to levitate, or float the trains over the tracks.
What are maglevs?
Forces that cancel each other out and produce no change in the objects motion
What are balanced forces?
a collection of forces that result in a change in the objects motion
What are unbalances forces
What happens to objects that experience a push force?
What is they move away from each other?
What happens to objects that experience a pull force?
What is they move closer to each other?
How did Elijah McCoy's invention improve train travel?
What is a way of lubricating the engine meant that the train could make fewer stops?