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Vocabulary
Sir Newton's Laws
Various Friction
Gravity and Weight
Challenge
100
This is a push or pull
What is force?
100
This law states that for every action there is a reaction.
What is Newton's Third Law
100
This friction is caused by the attraction of two surfaces.
What is static friction
100
This exisits between any two objects that have mass.
What is gravity
100
A merry go round is an example of this type of motion.
What is circular motion?
200
A combination of all forces acting on an object is this.
What is net force?
200
This law states that if an object is in motion it will stay in motion at a constant speed and if an object is at rest the object will stay at rest.
What is Newton's First Law
200
This type of friction slows down an object that slides.
What is sliding friction?
200
This is the size of gravitational force exerted on an object.
What is weight?
200
When an object moves in a circular motion the net force of the object is called this.
What is centriptal force?
300
This is when two or more forces cancel each other and do not change the objects velocity.
What is balanced forces
300
This law uses the equation a=Fnet/m
What is Netwon's Second Law
300
This type of friction occurs when an object rolls across a surface.
What is rolling friction?
300
This is the force that causes Earth to orbit the sun.
What is gravity
300
This is a form of friction that acts to slow down any object moving in the air.
What is air resistance?
400
If the objects velocity changes then the forces are this.
What is unbalanced forces?
400
Basketball is an example of this Newton's Law.
What is Newton's Third Law or Action/Reaction
400
A bicyle's brakes are an example of this type of friction.
What is sliding friction
400
This is the condition that occurs in free fall.
What is weightlessness?
400
This is when air resistances balances the force of gravity and the object falls at constant speed.
What is terminal velocity?
500
This is the force that acts to resist sliding between two touching surfaces.
What is friction?
500
Bumper cars is an example of this Newton's Law.
What is Newton's Second Law?
500
A car's tires on the road is this type of friction.
What is rolling friction
500
This is calculated using the equation w=m(9.8m/s^2).
What is weight
500
This is the point of an object that moves as if all the objects mass was concentrated there.
What is center of mass?