Force and Acceleration
A push or a pull on an object that is touching it.
What is a
Contact force
A force that one object can apply to another object without touching it.
What is a noncontact force?
The end or ends of a magnetic object, where the magnetic force is strongest
What are the poles of a magnet?
A object becomes positively charged by losing ______________
What are electrons?
When on object velocity changes.
What is acceleration?
What is weight?
The invisible region around a magnet where magnetic force can be felt is
What is a magnetic field?
Same number of protons and electrons
What are neutral objects?
An object will remain at rest or keep moving at a constant speed and direction unless acted upon by an outside force.
What is Newtons 1st law?
Amount of matter in an object
What is mass?
The same poles of two magnets will _____
What is repulsion?
Ab object becomes ___________ charged by gaining electrons
What are negatively charged objects?
Acceleration of an object equals the force on an object divided by the object's mass.
What is Newton's Second Law?
An attractive force that exists between all objects that have mass.
The opposite poles of a magnet will __________
What is attraction?
Nucleus of an atom has ______ and ________
What are protons and neutrons?
Every action has an equal and opposite reaction.
What is Newtons 3rd law?
Gravity depends on ____ and ____.
What is mass and distance?
These are the three ferromagnetic materials.
What are iron, cobalt, and nickel?
Negatively charged particles are called
What are electrons?