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level: Level 1

Questions and Answers List

level questions: Level 1

Question	Answer
It is a push or a pull, May either be a contact or a noncontact force Measured in NEWTON (N) Represented by vector Includes weight, tension, normal force, and friction	force
action at distance forces.	non contact force
Act or action of stretching. A kind of pulling force exerted on a non rigid object such as rope.	tension
Is always perpendicular to the surface on which it acts. A pushing force	normal force
requires touching	contact force
Isaac's law of motion are at the center of study called	dynamics of motion
English mathematician, physicist, astronomer, theologian, and author who is widely recognized as one of the most influential scientists of all time and as a key figure in the scientific revolution. Summarized the reasons why objects move, stop, or keep moving.	Isaac Newton
the tendency of an object to keep doing what is already doing	inertia
this is related to inertia	equilibrium
motion often involves two or more objects interacting with each other.	law of interaction
this law covers two cases: a state of rest and state of motion	Law of inertia
A force is needed to change motion Objects accelerate in the direction of the force The more force applied, then more acceleration The more mass an object has, the more force is needed to accelerate the object	law of acceleration
measure of how fast the velocity of an object changes	acceleration
a contact force that serves to slow down a moving object or prevent motion altogether.	friction
what surface produces more friction?	rough surface
it prevents two objects from sliding against each other.	static friction
exists when objects slide against each other.	kinetic friction
between wheels and a surface.	rolling friction
pushing an object across a surface	sliding fricion
opposes the motion of objects traveling through a fluid, also called drag force or air resistance	fluid friction
beneficial or not? helps us walk on the ground	beneficial
beneficial or undesirable? brakes in a car make use of friction to stop the car.	beneficial
beneficial or undesirable? causes wear and tear in machinery parts and cause wastage of electricity and energy.	undesirable
beneficial or undesirable?? responsible for many types of motion.	beneficial
.a movement of an object along the circumference of a circle or rotation along a circular path.	circular motion
can be described as the motion of an object in a circle at a constant speed.	uniform circular motion
net force that pulls the object toward the center of the circle.	Centripetal Force
the rate of change in velocity of an object that is associated with the change in direction of velocity	centripetal acceleration
the time within which an orbiting body completes its movement in a circle.	period
reciprocal of period	frequency
the motion when an object move around a circular paths at a constant rate.	periodic
is defined as the product of the force applied to move an object and the displacement in the direction of the force.	work
the capacity to do work	energy
energy of moving bodies	mechanical energy
stored energy	potential energy
energy of motion	kinetic energy
measure of the amount of matter	mass
the gravitational force acting on an object	weight
the state of motion that results when the net force acting on an object is zero	equilibrant