A) work B) gravitation C) force D) magnetism E) friction
A) friction B) work C) gravitation D) force E) magnetism
A) friction B) gravitation C) work D) force E) magnetism
A) force B) unbalanced forces C) magnetism D) work E) balanced forces
A) work B) gravitation C) net force D) force E) power
A) net force B) work C) power D) force E) friction
A) balanced forces B) friction C) unbalanced forces D) work E) power
A) friction B) newton C) magnetism D) gravity
A) it is placed on a flat surface B) a nearby star acts on it C) an outside force acts on it D) it continues in a straight line
A) an equal and opposite reaction B) a force sending it backward C) a movement in all directions D) a greater force pushing on it
A) its mass and velocity changes B) its frame of reference changes C) its momentum changes D) Its position changes
A) Why all moving objects eventually stop moving B) the relationship between the four basic elements C) how frame of reference influences movement D) The movement of objects on Earth and in space
A) friction can be overcome for all objects B) gravitational forces are stronger on Earth than on the moon or other satellites C) the ground pushes against your feet when you run D) People in a car move forward in their seats when the car stops quickly
A) inertia B) orbit C) law of universal gravitation D) reaction force
A) Law of Gravitation B) action force C) orbit D) inertia E) reaction force
A) action force B) Reaction force C) inertia D) orbit
A) speed B) velocity C) momentum D) position E) acceleration
A) momentum of that object B) position of that object C) velocity of that object D) acceleration of that object E) the speed of that object
A) acceleration B) speed C) momentum D) velocity E) position
A) acceleration B) position C) velocity D) speed E) momentum
A) a pole can be knocked down when a moving car hits it B) trucks slow down when they are travelling uphill C) a ball thrown into the air always falls back toward Earth D) a spacecraft can travel in space for thousands of years
A) A screw and a wedge B) a wedge and a pulley C) a lever and a wedge D) a pulley and a screw
A) a magnet B) speed C) a machine D) friction
A) a current B) a force C) a power D) a machine
A) magnetism B) power C) work D) friction E) force |