Contact Forces
A force that is exerted on an object by a person or another object
What is Applied Force?
The force of attraction of any two objects that have mass
What is gravitational force?
Occurs when two solid surfaces slide over one another
What is sliding friction?
A climber pulls down on a rope causing his body to lift upward and rise along the rope
What is Newton's Third Law of Motion?
A property of matter that causes it to resist changes in velocity (speed and/or direction).
What is inertia?
The force exerted by an object to counteract the force (weight) exerted by another object
What is Normal Force?
Attraction or repulsion that arises between electrically charged particles because of their motion
What is magnetic force?
When an object rolls across a surface
What is rolling friction?
Force = Mass x Acceleration
What is Newton's Second Law of Motion?
1 kg m/s2
What is a Newton?
The force that is transmitted through a rope, string or wire when pulled by forces acting from opposite sides
What is tension force?
Attractive or repulsive forces between particles that are caused by their electric charges
What is electrostatic forces?
Occurs between objects that are not moving
What is static friction?
Two bumper cars collide into each other and each car jolts backwards
What is Newton's First Law of Motion?
Mass times velocity
What is momentum?
The force that acts in the opposite direction to an object moving through the air
What is air resistance force?
A very strong force that acts between the protons and neutrons in the nucleus of atoms
What is a nuclear force?
Occurs when liquid or air flows
What is fluid friction?
For every action there is an equal and opposite reaction.
What is Newton's Third Law of Motion?
9.8 m/s2 on earth
What is the force of gravity?
The force exerted by a compressed or stretched spring upon any object that is attached to it
What is a spring force?
Lighting is an example of this type of force
What is electrostatic?
The force exerted by fluid on a swimmer's body
What is buoyant force?
When you are standing in a subway train and the train suddenly stops but your body continues to move forward
What is Newton's First Law of Motion?
The total distance traveled by the object divided by the elapsed time to cover that distance.
What is average speed?