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