SOLVED QUESTIONS ACCURATE
◉ Velocity. Answer: refers to speed in a specific direction.
v=deltaX/delta T
◉ Scalar Quantity. Answer: a measurment such as speed, it only has a
numeric value without a particular directiom
◉ Vector Quantity. Answer: fact that velocity has a magnitude and a
direction
◉ Average Velocity. Answer: determined by averaging the initial speed
and the final speed of the object
◉ Acceleration. Answer: the rate of change in velocity over a period of
time. acceleration= deltaV/ deltaT
◉ Projectile Motion. Answer: the way in which a projectile will move
when the only force acting upon it is gravity
◉ Force. Answer: defined as a push or a pull on an object
, ◉ Newton's First Law of Motion. Answer: the law of inertia: states that
the body at rest will remain at rest, and the body in motion will remain
in motion with a constant velocity, unless acted on by an unbalanced
force; F=ka
◉ Newton's Second Law of Motion. Answer: the force on an object is
equal to the mass multiplied by the acceleration on that object. F=ma
◉ Newton (N). Answer: the unit of force and is equal to the force
necessary to accelerate a mass of one kilogram one meter per second per
second
◉ Newton's Third Law of Motion. Answer: states that for every action
there must be an equal and opposite reaction
◉ Friction. Answer: a force that opposes motion and is expressed in
newtons. four types: static, sliding, fluid, rolling
◉ Centripetal Acceleration. Answer: rotational motion equivalent of
acceleration
◉ Kinetic Energy. Answer: the energy resulting from the motion of the
object. KE=1/2mv^2