Vocabulary
A push or a pull
Force
a force that opposes motion
Friction
What are two types of noncontact forces?
Gravity and Magnetism
Two types of magnets
Natural and Electromagnet
mass and distance
the result of all the forces acting on an object
Net Force
What are two types of contact forces
Friction and applied force
How do you increase the force of an electromagnet
Increase the number of coils of wire or increase the voltage of electricity.
required for a change in motion
Unbalanced Force
What is a contact force that opposed motion
Friction
Which type of magnet can be turned off or on
Electromagnet
Zero Newtons
Balanced Force
What is a noncontact force that opposes motion?
Air Resistance
a force of attraction or repulsion between materials
Magnetism
a force of attraction between two objects, depends on their mass and distance
Gravity
If an object is in orbit around another object, how can you cause that object to leave orbit without using engines?
Decrease the mass